CN105577206A - Diversity Receiver Front-End System with Phase-Shifting Components - Google Patents

Abstract

Diversity receiver front-end system with phase shifting elements. A receiving system may include a controller configured to selectively activate one or more of a plurality of paths between an input of the receiving system and an output of the receiving system. The receiving system may also include a plurality of amplifiers, each of the plurality of amplifiers disposed along a corresponding one of the plurality of paths and configured to amplify a signal received at the amplifier. The receiving system may further include a plurality of phase shift elements, each of the plurality of phase shift elements disposed along a corresponding one of the plurality of paths and configured to phase shift a signal passing through the phase shift element.

Description

Translated fromChinese

具有相移部件的分集接收机前端系统Diversity Receiver Front-End System with Phase-Shifting Components

相关申请的交叉引用Cross References to Related Applications

本申请要求2014年10月31日提交的发明名称为“DIVERSITYRECEIVERFRONTENDSYSTEM”的美国临时申请第62/073,043号、2014年10月31日提交的发明名称为“CARRIERAGGREGATIONUSINGPOST-LNAPHASEMATCHING”的美国临时申请第62/073,040号、2014年10月31日提交的发明名称为“PRE-LNAOUTOFBANDIMPEDANCEMATCHINGFORCARRIERAGGREGATIONOPERATION”的美国临时申请第62/073,039号、2015年6月9日提交的发明名称为“DIVERSITYRECEIVERFRONTENDSYSTEMWITHIMPEDANCEMATCHINGCOMPONENTS”的美国申请第14/734,775号、2015年6月9日提交的发明名称为“DIVERSITYRECEIVERFRONTENDSYSTEMWITHPHASE-SHIFTINGCOMPONENTS”的美国申请第14/734,759号、以及2015年6月1日提交的发明名称为“DIVERSITYRECEIVERFRONTENDSYSTEMWITHVARIABLE-GAINAMPLIFIERS”的美国申请第14/727,739号的优先权，特此通过引用而将其每一个的公开内容明确地全部合并于此。This application claims U.S. Provisional Application No. 62/073,043 filed October 31, 2014 entitled "DIVERSITYRECEIVERFRONTENDSYSTEM" and U.S. Provisional Application No. 62/043 filed October 31, 2014 entitled "CARRIERAGGREGATIONUSINGPOST-LNAPHASEMATCHING" 073,040, U.S. Provisional Application No. 62/073,039 filed October 31, 2014 titled "PRE-LNAOUTOFBANDIMPEDANCEMATCHINGFORCARRIERAGGREGATIONOPERATION", U.S. Provisional Application No. 62/073,039 filed June 9, 2015 titled "DIVERSITYRECEIVERFRONTEND SYSTEM WITH IMPEDANCEMATCHINGCOMPONENTS 7,5" No. 14/734,759, U.S. Application No. 14/734,759 filed on June 9, 2015 entitled "DIVERSITYRECEIVEVERFRONTEND SYSTEM WITH VARIABLE-GAINAMPLIFIERS" and U.S. Application No. 14/759 filed on June 1, 2015 entitled "DIVERSITYRECEIVERFRONTEND SYSTEM WITH VARIABLE-GAINAMPLIFIERS" 727,739, the disclosure of each of which is hereby expressly incorporated by reference in its entirety.

技术领域technical field

本申请总体上涉及具有一个或多个分集接收天线的无线通信系统。The present application relates generally to wireless communication systems having one or more diversity receive antennas.

背景技术Background technique

在无线通信应用中，大小、成本和性能是对于给定产品而言可能重要的因素的例子。例如，为了提升性能，诸如分集接收天线和相关联的电路系统之类的无线部件正变得更流行。In wireless communication applications, size, cost and performance are examples of factors that may be important for a given product. For example, wireless components such as diversity receive antennas and associated circuitry are becoming more popular in order to improve performance.

在许多射频(RF)应用中，分集接收天线被安置得在物理上远离主天线(primaryantenna)。当两个天线同时都被使用时，收发机可处理来自两个天线的信号以提高数据吞吐量。In many radio frequency (RF) applications, diversity receive antennas are located physically remote from the primary antenna. When both antennas are used simultaneously, the transceiver can process signals from both antennas to increase data throughput.

发明内容Contents of the invention

根据一些实施方式，本申请涉及一种接收系统，所述接收系统包括控制器，配置为选择性地激活所述接收系统的输入和所述接收系统的输出之间的多个路径中的一个或多个。所述接收系统还包括多个放大器。所述多个放大器中的每个放大器沿所述多个路径中的对应一个路径设置并且配置为对在所述放大器处接收到的信号进行放大。所述接收系统还包括多个阻抗匹配部件。所述多个阻抗匹配部件中的每个阻抗匹配部件沿所述多个路径中的对应一个路径设置并且配置为减小所述多个路径中的所述一个路径的带外噪声系数(noisefigure)或带外增益中的至少一个。According to some embodiments, the present application relates to a receiving system comprising a controller configured to selectively activate one or Multiple. The receiving system also includes a plurality of amplifiers. Each amplifier of the plurality of amplifiers is disposed along a corresponding one of the plurality of paths and is configured to amplify a signal received at the amplifier. The receiving system also includes a plurality of impedance matching components. Each of the plurality of impedance matching components is disposed along a corresponding one of the plurality of paths and configured to reduce an out-of-band noise figure of the one of the plurality of paths or at least one of out-of-band gain.

在一些实施例中，所述多个阻抗匹配部件中的沿所述多个路径中的与第一频率带对应的第一路径设置的第一阻抗匹配部件可以配置为减小与所述多个路径中的第二路径对应的第二频率带的带外噪声系数或带外增益中的至少一个。In some embodiments, among the plurality of impedance matching components, the first impedance matching component disposed along the first path corresponding to the first frequency band among the plurality of paths may be configured to reduce the interference with the plurality of impedance matching components. At least one of an out-of-band noise figure or an out-of-band gain of a second frequency band corresponding to a second path of the paths.

在一些实施例中，所述多个阻抗匹配部件中的沿所述第二路径设置的第二阻抗匹配部件可以配置为减小所述第一频率带的带外噪声系数或带外增益中的至少一个。在一些实施例中，所述第一阻抗匹配部件还可以配置为减小与所述多个路径中的第三路径对应的第三频率带的带外噪声系数或带外增益中的至少一个。In some embodiments, a second impedance matching component of the plurality of impedance matching components disposed along the second path may be configured to reduce the out-of-band noise figure or out-of-band gain of the first frequency band at least one. In some embodiments, the first impedance matching component may be further configured to reduce at least one of an out-of-band noise figure or an out-of-band gain of a third frequency band corresponding to a third path of the plurality of paths.

在一些实施例中，所述第一阻抗匹配部件还可以配置为针对所述第一频率带，减小带内噪声系数或增大带内增益。在一些实施例中，所述第一阻抗匹配部件可以配置为将所述带内噪声系数减所述带内增益的带内度量(metric)减小到带内度量最小值(minimum)的一阈值量以内。在一些实施例中，所述第一阻抗匹配部件可以配置为将所述带外噪声系数加所述带外增益的带外度量减小到带内约束带外度量最小值(in-band-constrainedout-of-bandmetricminimum)。In some embodiments, the first impedance matching component may also be configured to reduce an in-band noise figure or increase an in-band gain for the first frequency band. In some embodiments, the first impedance matching component may be configured to reduce an in-band metric of the in-band noise figure minus the in-band gain to a threshold of an in-band metric minimum within the amount. In some embodiments, the first impedance matching component may be configured to reduce the out-of-band metric of the out-of-band noise figure plus the out-of-band gain to an in-band-constrained out-of-band metric minimum (in-band-constrained out -of-bandmetric minimum).

在一些实施例中，所述接收系统还可以包括复用器，配置为将在所述输入处接收到的输入信号分离为沿所述多个路径传播的相应多个频率带的多个信号。在一些实施例中，所述多个阻抗匹配部件中的每个阻抗匹配部件可以设置在所述复用器与所述多个放大器中的相应一个放大器之间。在一些实施例中，所述接收系统还可以包括信号组合器，配置为组合沿所述多个路径传播的信号。In some embodiments, the receiving system may further include a multiplexer configured to split the input signal received at the input into a plurality of signals of corresponding plurality of frequency bands propagating along the plurality of paths. In some embodiments, each of the plurality of impedance matching components may be disposed between the multiplexer and a corresponding one of the plurality of amplifiers. In some embodiments, the receiving system may further include a signal combiner configured to combine signals propagating along the plurality of paths.

在一些实施例中，所述多个阻抗匹配部件中的至少一个阻抗匹配部件可以是无源电路。在一些实施例中，所述多个阻抗匹配部件中的至少一个阻抗匹配部件可以是RLC电路。In some embodiments, at least one impedance matching component of the plurality of impedance matching components may be a passive circuit. In some embodiments, at least one impedance matching component of the plurality of impedance matching components may be an RLC circuit.

在一些实施例中，所述多个阻抗匹配部件中的至少一个阻抗匹配部件可以包括可调阻抗匹配部件，配置为呈现通过从所述控制器接收到的阻抗调谐信号来控制的阻抗。In some embodiments, at least one impedance matching component of the plurality of impedance matching components may comprise a tunable impedance matching component configured to exhibit an impedance controlled by an impedance tuning signal received from the controller.

在一些实施例中，沿所述多个路径中的与第一频率带对应的第一路径设置的第一阻抗匹配部件还可以配置为对传递通过所述第一阻抗匹配部件的信号的第二频率带进行相移，使得沿所述多个路径中的与所述第二频率带对应的第二路径传播的初始信号和沿所述第一路径传播的反射信号至少部分地同相(in-phase)。In some embodiments, the first impedance matching component disposed along the first path corresponding to the first frequency band among the plurality of paths may also be configured as a second The frequency bands are phase-shifted such that an initial signal propagating along a second path of the plurality of paths corresponding to the second frequency band and a reflected signal propagating along the first path are at least partially in-phase ).

在一些实施方式中，本申请涉及一种射频(RF)模块，所述RF模块包括配置为容纳多个部件的封装衬底。所述RF模块还包括实施在所述封装衬底上的接收系统。所述接收系统包括控制器，配置为选择性地激活所述接收系统的输入和所述接收系统的输出之间的多个路径中的一个或多个。所述接收系统还包括多个放大器。所述多个放大器中的每个放大器沿所述多个路径中的对应一个路径设置并且配置为对在所述放大器处接收到的信号进行放大。所述接收系统还包括多个阻抗匹配部件。所述多个阻抗匹配部件中的每个阻抗匹配部件沿所述多个路径中的对应一个路径设置并且配置为减小所述多个路径中的所述一个路径的带外噪声系数或带外增益中的至少一个。在一些实施例中，所述RF模块可以是分集接收机前端模块(FEM)。In some implementations, the present application is directed to a radio frequency (RF) module that includes a packaging substrate configured to house a plurality of components. The RF module also includes a receive system implemented on the packaging substrate. The receiving system includes a controller configured to selectively activate one or more of a plurality of paths between an input of the receiving system and an output of the receiving system. The receiving system also includes a plurality of amplifiers. Each amplifier of the plurality of amplifiers is disposed along a corresponding one of the plurality of paths and is configured to amplify a signal received at the amplifier. The receiving system also includes a plurality of impedance matching components. Each of the plurality of impedance matching components is disposed along a corresponding one of the plurality of paths and is configured to reduce an out-of-band noise figure or an out-of-band noise figure of the one of the plurality of paths at least one of the gains. In some embodiments, the RF module may be a diversity receiver front-end module (FEM).

在一些实施例中，所述多个阻抗匹配部件中的沿所述多个路径中的与第一频率带对应的第一路径设置的第一阻抗匹配部件可以配置为减小与所述多个路径中的第二路径对应的第二频率带的带外噪声系数或带外增益中的至少一个。In some embodiments, among the plurality of impedance matching components, the first impedance matching component disposed along the first path corresponding to the first frequency band among the plurality of paths may be configured to reduce the interference with the plurality of impedance matching components. At least one of an out-of-band noise figure or an out-of-band gain of a second frequency band corresponding to a second path of the paths.

根据一些教导，本申请涉及一种无线装置，所述无线装置包括配置为接收第一射频(RF)信号的第一天线。所述无线装置还包括与所述第一天线通信的第一前端模块(FEM)。所述第一FEM包括配置为容纳多个部件的封装衬底。所述第一FEM还包括实施在所述封装衬底上的接收系统。所述接收系统包括控制器，配置为选择性地激活所述接收系统的输入和所述接收系统的输出之间的多个路径中的一个或多个。所述接收系统还包括多个放大器。所述多个放大器中的每个放大器沿所述多个路径中的对应一个路径设置，并且配置为对在所述放大器处接收到的信号进行放大。所述接收系统还包括多个阻抗匹配部件。所述多个阻抗匹配部件中的每个阻抗匹配部件沿所述多个路径中的对应一个路径设置，并且配置为减小所述多个路径中的所述一个路径的带外噪声系数或带外增益中的至少一个。所述无线装置还包括收发机，配置为经由传输线路从所述输出接收所述第一RF信号的处理版本，并且基于所述第一RF信号的处理版本来生成数据比特。According to some teachings, the present application is directed to a wireless device including a first antenna configured to receive a first radio frequency (RF) signal. The wireless device also includes a first front end module (FEM) in communication with the first antenna. The first FEM includes a packaging substrate configured to house a plurality of components. The first FEM also includes a receiving system implemented on the packaging substrate. The receiving system includes a controller configured to selectively activate one or more of a plurality of paths between an input of the receiving system and an output of the receiving system. The receiving system also includes a plurality of amplifiers. Each amplifier of the plurality of amplifiers is disposed along a corresponding one of the plurality of paths and is configured to amplify a signal received at the amplifier. The receiving system also includes a plurality of impedance matching components. Each of the plurality of impedance matching components is disposed along a corresponding one of the plurality of paths and is configured to reduce an out-of-band noise figure or a band noise figure of the one of the plurality of paths. at least one of the external gains. The wireless device also includes a transceiver configured to receive a processed version of the first RF signal from the output via a transmission line, and to generate data bits based on the processed version of the first RF signal.

在一些实施例中，所述无线装置还可以包括配置为接收第二射频(RF)信号的第二天线以及与所述第二天线通信的第二FEM。所述收发机可以配置为从所述第二FEM的输出接收所述第二RF信号的处理版本，并且基于所述第二RF信号的处理版本来生成数据比特。In some embodiments, the wireless device may further include a second antenna configured to receive a second radio frequency (RF) signal and a second FEM in communication with the second antenna. The transceiver may be configured to receive a processed version of the second RF signal from an output of the second FEM, and to generate data bits based on the processed version of the second RF signal.

在一些实施例中，所述多个阻抗匹配部件中的沿所述多个路径中的与第一频率带对应的第一路径设置的第一阻抗匹配部件配置为减小与所述多个路径中的第二路径对应的第二频率带的带外噪声系数或带外增益中的至少一个。In some embodiments, among the plurality of impedance matching components, a first impedance matching component disposed along a first path corresponding to a first frequency band among the plurality of paths is configured to reduce At least one of out-of-band noise figure or out-of-band gain of the second frequency band corresponding to the second path in .

根据一些实施方式，本申请涉及一种接收系统，所述接收系统包括控制器，配置为选择性地激活所述接收系统的输入和所述接收系统的输出之间的多个路径中的一个或多个。所述接收系统还包括多个放大器。所述多个放大器中的每个放大器沿所述多个路径中的对应一个路径设置并且配置为对在所述放大器处接收到的信号进行放大。所述接收系统还包括多个相移部件。所述多个相移部件中的每个相移部件沿所述多个路径中的对应一个路径设置并且配置为对传递通过所述相移部件的信号进行相移。According to some embodiments, the present application relates to a receiving system comprising a controller configured to selectively activate one or Multiple. The receiving system also includes a plurality of amplifiers. Each amplifier of the plurality of amplifiers is disposed along a corresponding one of the plurality of paths and is configured to amplify a signal received at the amplifier. The receiving system also includes a plurality of phase shifting components. Each phase shifting element of the plurality of phase shifting elements is disposed along a corresponding one of the plurality of paths and is configured to phase shift a signal passing through the phase shifting element.

在一些实施例中，所述多个相移部件中的沿所述多个路径中的与第一频率带对应的第一路径设置的第一相移部件可以配置为对传递通过所述第一相移部件的信号的第二频率带进行相移，使得沿所述多个路径中的与所述第二频率带对应的第二路径传播的第二初始信号和沿所述第一路径传播的第二反射信号至少部分地同相。In some embodiments, among the plurality of phase shifting elements, a first phase shifting element disposed along a first path of the plurality of paths corresponding to a first frequency band may be configured to respond to transmission through the first frequency band. The second frequency band of the signal of the phase shifting part is phase-shifted, so that the second initial signal propagating along the second path corresponding to the second frequency band among the plurality of paths and the second initial signal propagating along the first path The second reflected signal is at least partially in phase.

在一些实施例中，所述多个相移部件中的沿所述第二路径设置的第二相移部件可以配置为对传递通过所述第二相移部件的信号的第一频率带进行相移，使得沿所述第一路径传播的第一初始信号和沿所述第二路径传播的第一反射信号至少部分地同相。In some embodiments, a second phase shifting element of the plurality of phase shifting elements disposed along the second path may be configured to phase a first frequency band of a signal passing through the second phase shifting element. shifted such that the first initial signal propagating along the first path and the first reflected signal propagating along the second path are at least partially in phase.

在一些实施例中，所述第一相移部件还可以配置为对传递通过所述第一相移部件的信号的第三频率带进行相移，使得沿所述多个路径中的与所述第三频率带对应的第三路径传播的第三初始信号和沿所述第一路径传播的第三反射信号至少部分地同相。In some embodiments, the first phase shifting unit may be further configured to phase shift a third frequency band of the signal passing through the first phase shifting unit such that the The third initial signal propagating on the third path corresponding to the third frequency band is at least partially in phase with the third reflected signal propagating along the first path.

在一些实施例中，所述第一相移部件可以配置为对传递通过所述第一相移部件的信号的第二频率带进行相移，使得所述第二初始信号和所述第二反射信号具有360度的整数倍的相位差。In some embodiments, the first phase shifting component may be configured to phase shift a second frequency band of the signal passing through the first phase shifting component such that the second initial signal and the second reflected The signals have phase differences that are integer multiples of 360 degrees.

在一些实施例中，所述接收系统还可以包括复用器，配置为将在所述输入处接收到的输入信号分离为沿所述多个路径传播的相应多个频率带的多个信号。在一些实施例中，所述接收系统还可以包括信号组合器，配置为组合沿所述多个路径传播的信号。在一些实施例中，所述接收系统还可以包括组合器后放大器，设置在所述信号组合器与所述输出之间，所述组合器后放大器配置为放大在所述组合器后放大器处接收到的信号。在一些实施例中，所述多个相移部件中的每个相移部件可以设置在所述信号组合器与所述多个放大器中的相应一个放大器之间。在一些实施例中，所述多个放大器中的至少一个放大器可以包括两级放大器。In some embodiments, the receiving system may further include a multiplexer configured to split the input signal received at the input into a plurality of signals of corresponding plurality of frequency bands propagating along the plurality of paths. In some embodiments, the receiving system may further include a signal combiner configured to combine signals propagating along the plurality of paths. In some embodiments, the receiving system may further include a post-combiner amplifier disposed between the signal combiner and the output, the post-combiner amplifier configured to amplify signals received at the post-combiner amplifier. to the signal. In some embodiments, each of the plurality of phase shifting components may be disposed between the signal combiner and a corresponding one of the plurality of amplifiers. In some embodiments, at least one amplifier of the plurality of amplifiers may include a two-stage amplifier.

在一些实施例中，所述多个相移部件中的至少一个相移部件可以是无源电路。在一些实施例中，所述多个相移部件中的至少一个相移部件可以是LC电路。In some embodiments, at least one phase shifting component of the plurality of phase shifting components may be a passive circuit. In some embodiments, at least one phase shifting component of the plurality of phase shifting components may be an LC circuit.

在一些实施例中，所述多个相移部件中的至少一个相移部件可以包括可调相移部件，配置为将传递通过所述可调相移部件的信号相移一个量，所述量由从所述控制器接收到的相移调谐信号控制。In some embodiments, at least one phase shifting element of the plurality of phase shifting elements may comprise an adjustable phase shifting element configured to phase shift a signal passing through the adjustable phase shifting element by an amount, the amount Controlled by a phase shift tuning signal received from the controller.

在一些实施例中，所述接收系统还可以包括多个阻抗匹配部件，所述多个阻抗匹配部件中的每个阻抗匹配部件沿所述多个路径中的对应一个路径设置，并且配置为减小所述多个路径中的所述对应一个路径的带外噪声系数或带外增益中的至少一个。In some embodiments, the receiving system may further include a plurality of impedance matching components, each of the plurality of impedance matching components is arranged along a corresponding one of the plurality of paths, and is configured to reduce At least one of an out-of-band noise figure or an out-of-band gain of the corresponding one of the plurality of paths is reduced.

在一些实施方式中，本申请涉及一种射频(RF)模块，所述RF模块包括配置为容纳多个部件的封装衬底。所述RF模块还包括实施在所述封装衬底上的接收系统。所述接收系统包括控制器，配置为选择性地激活所述接收系统的输入和所述接收系统的输出之间的多个路径中的一个或多个。所述接收系统还包括多个放大器。所述多个放大器中的每个放大器沿所述多个路径中的对应一个路径设置并且配置为对在所述放大器处接收到的信号进行放大。所述接收系统还包括多个相移部件。所述多个相移部件中的每个相移部件沿所述多个路径中的对应一个路径设置并且配置为对传递通过所述相移部件的信号进行相移。In some implementations, the present application is directed to a radio frequency (RF) module that includes a packaging substrate configured to house a plurality of components. The RF module also includes a receive system implemented on the packaging substrate. The receiving system includes a controller configured to selectively activate one or more of a plurality of paths between an input of the receiving system and an output of the receiving system. The receiving system also includes a plurality of amplifiers. Each amplifier of the plurality of amplifiers is disposed along a corresponding one of the plurality of paths and is configured to amplify a signal received at the amplifier. The receiving system also includes a plurality of phase shifting components. Each phase shifting element of the plurality of phase shifting elements is disposed along a corresponding one of the plurality of paths and is configured to phase shift a signal passing through the phase shifting element.

在一些实施例中，所述RF模块可以是分集接收机前端模块(FEM)。In some embodiments, the RF module may be a diversity receiver front-end module (FEM).

在一些实施例中，所述多个相移部件中的沿所述多个路径中的与第一频率带对应的第一路径设置的第一相移部件配置为对传递通过所述第一相移部件的信号的第二频率带进行相移，使得沿所述多个路径中的与所述第二频率带对应的第二路径传播的第二初始信号和沿所述第一路径传播的第二反射信号至少部分地同相。In some embodiments, a first phase shifting element of the plurality of phase shifting elements disposed along a first path of the plurality of paths corresponding to a first frequency band is configured to respond to the The second frequency band of the signal of the shifting part is phase-shifted, so that the second initial signal propagated along the second path corresponding to the second frequency band among the plurality of paths and the second initial signal propagated along the first path The two reflected signals are at least partially in phase.

根据一些教导，本申请涉及一种无线装置，所述无线装置包括配置为接收第一射频(RF)信号的第一天线。所述无线装置还包括与所述第一天线通信的第一前端模块(FEM)。所述第一FEM包括配置为容纳多个部件的封装衬底。所述第一FEM还包括实施在所述封装衬底上的接收系统。所述接收系统包括控制器，配置为选择性地激活所述接收系统的输入和所述接收系统的输出之间的多个路径中的一个或多个。所述接收系统还包括多个放大器。所述多个放大器中的每个放大器沿所述多个路径中的对应一个路径设置并且配置为对在所述放大器处接收到的信号进行放大。所述接收系统还包括多个相移部件。所述多个相移部件中的每个相移部件沿所述多个路径中的对应一个路径设置并且配置为对传递通过所述相移部件的信号进行相移。所述无线装置还包括收发机，配置为经由传输线路从所述输出接收所述第一RF信号的处理版本，并且基于所述第一RF信号的处理版本来生成数据比特。According to some teachings, the present application is directed to a wireless device including a first antenna configured to receive a first radio frequency (RF) signal. The wireless device also includes a first front end module (FEM) in communication with the first antenna. The first FEM includes a packaging substrate configured to house a plurality of components. The first FEM also includes a receiving system implemented on the packaging substrate. The receiving system includes a controller configured to selectively activate one or more of a plurality of paths between an input of the receiving system and an output of the receiving system. The receiving system also includes a plurality of amplifiers. Each amplifier of the plurality of amplifiers is disposed along a corresponding one of the plurality of paths and is configured to amplify a signal received at the amplifier. The receiving system also includes a plurality of phase shifting components. Each phase shifting element of the plurality of phase shifting elements is disposed along a corresponding one of the plurality of paths and is configured to phase shift a signal passing through the phase shifting element. The wireless device also includes a transceiver configured to receive a processed version of the first RF signal from the output via a transmission line, and to generate data bits based on the processed version of the first RF signal.

在一些实施例中，所述无线装置还可以包括配置为接收第二射频(RF)信号的第二天线以及与所述第二天线通信的第二FEM。所述收发机可以配置为从所述第二FEM的输出接收所述第二RF信号的处理版本，并且基于所述第二RF信号的处理版本来生成所述数据比特。In some embodiments, the wireless device may further include a second antenna configured to receive a second radio frequency (RF) signal and a second FEM in communication with the second antenna. The transceiver may be configured to receive a processed version of the second RF signal from an output of the second FEM, and to generate the data bits based on the processed version of the second RF signal.

在一些实施例中，所述多个相移部件中的沿所述多个路径中的与第一频率带对应的第一路径设置的第一相移部件配置为对传递通过所述第一相移部件的信号的第二频率带进行相移，使得沿所述多个路径中的与所述第二频率带对应的第二路径传播的第二初始信号和沿所述第一路径传播的第二反射信号至少部分地同相。In some embodiments, a first phase shifting element of the plurality of phase shifting elements disposed along a first path of the plurality of paths corresponding to a first frequency band is configured to respond to the The second frequency band of the signal of the shifting part is phase-shifted, so that the second initial signal propagated along the second path corresponding to the second frequency band among the plurality of paths and the second initial signal propagated along the first path The two reflected signals are at least partially in phase.

出于概述本申请的目的，已经在这里描述了本发明的某些方面、优点和新颖特征。应当理解，根据本发明的任何具体实施例，不一定要实现所有这些优点。因而，可以按照实现或优化如在这里教导的一个优点或一组优点的方式来实施或实现本发明，而不需要实现如在这里可以教导或建议的其它优点。For purposes of summarizing the application, certain aspects, advantages and novel features of the invention have been described herein. It is to be understood that not necessarily all such advantages may be achieved in accordance with any particular embodiment of the invention. Thus, the invention may be practiced or carried out in a manner that achieves or optimizes one advantage or group of advantages as taught herein without requiring other advantages as may be taught or suggested herein.

附图说明Description of drawings

图1示出了具有耦接到主天线(primaryantenna)和分集天线(diversityantenna)的通信模块的无线装置。Figure 1 shows a wireless device with a communication module coupled to a primary antenna and a diversity antenna.

图2示出了包括分集接收机(DRx)前端模块(FEM)的DRx配置。Figure 2 shows a DRx configuration including a diversity receiver (DRx) front end module (FEM).

图3示出了在一些实施例中，分集接收机(DRx)配置可以包括DRx模块，DRx模块具有与多个频率带对应的多个路径。Figure 3 shows that in some embodiments, a diversity receiver (DRx) configuration may include a DRx module with multiple paths corresponding to multiple frequency bands.

图4示出了在一些实施例中，分集接收机配置可以包括分集RF模块，分集RF模块比分集接收机(DRx)模块具有更少的放大器。Figure 4 shows that in some embodiments, a diversity receiver configuration may include a diversity RF module having fewer amplifiers than a diversity receiver (DRx) module.

图5示出了在一些实施例中，分集接收机配置可以包括DRx模块，DRx模块耦接到模块外滤波器(off-modulefilter)。Figure 5 shows that in some embodiments, a diversity receiver configuration may include a DRx module coupled to an off-module filter.

图6A示出了在一些实施例中，分集接收机配置可以包括DRx模块，DRx模块具有一个或多个相位匹配部件(component)。Figure 6A shows that in some embodiments, a diversity receiver configuration may include a DRx module with one or more phase matching components.

图6B示出了在一些实施例中，分集接收机配置可以包括DRx模块，DRx模块具有一个或多个相位匹配部件和两级放大器。Figure 6B shows that in some embodiments, a diversity receiver configuration may include a DRx module with one or more phase matching components and two stages of amplifiers.

图6C示出了在一些实施例中，分集接收机配置可以包括DRx模块，DRx模块具有一个或多个相位匹配部件和组合器后放大器(post-combineramplifier)。Figure 6C shows that in some embodiments, a diversity receiver configuration may include a DRx module with one or more phase matching components and a post-combiner amplifier.

图7示出了在一些实施例中，分集接收机配置可以包括DRx模块，DRx模块具有可调(tunable)相移部件。Figure 7 shows that in some embodiments, a diversity receiver configuration may include a DRx module with tunable phase shifting components.

图8示出了在一些实施例中，分集接收机配置可以包括DRx模块，DRx模块具有一个或多个阻抗匹配部件。Figure 8 shows that in some embodiments, a diversity receiver configuration may include a DRx module with one or more impedance matching components.

图9示出了在一些实施例中，分集接收机配置可以包括DRx模块，DRx模块具有可调阻抗匹配部件。Figure 9 shows that in some embodiments, a diversity receiver configuration may include a DRx module with adjustable impedance matching components.

图10示出了在一些实施例中，分集接收机配置可以包括DRx模块，DRx模块具有设置在输入和输出处的可调阻抗匹配部件。Figure 10 shows that in some embodiments, a diversity receiver configuration may include a DRx module with adjustable impedance matching components disposed at the input and output.

图11示出了在一些实施例中，分集接收机配置可以包括DRx模块，DRx模块具有多个可调部件。Figure 11 shows that in some embodiments, a diversity receiver configuration may include a DRx module with multiple adjustable components.

图12示出了处理RF信号的方法的流程表示的一实施例。Figure 12 shows an embodiment of a flowchart representation of a method of processing RF signals.

图13描绘了具有如在这里描述的一个或多个特征的模块。Figure 13 depicts a module having one or more features as described herein.

图14描绘了具有如在这里描述的一个或多个特征的无线装置。14 depicts a wireless device having one or more features as described herein.

具体实施方式detailed description

这里提供的小标题(如果有的话)仅是为了便利，而不一定影响要求保护的发明的范围或意义。Subheadings, if any, are provided here for convenience only and do not necessarily affect the scope or meaning of the claimed invention.

图1示出了具有耦接到主天线130和分集天线140的通信模块110的无线装置100。通信模块110(及其组成部件)可被控制器120控制。通信模块110包括收发机112，其被配置为在模拟射频(RF)信号与数字数据信号之间进行转换。为此，收发机112可包括数模转换器、模数转换器、用于将基带模拟信号调制到载频或从载频解调基带模拟信号的本机振荡器(localoscillator)、用于在数字采样与数据比特(例如，话音或其它类型的数据)之间进行转换的基带处理器、或其它部件。FIG. 1 shows a wireless device 100 having a communication module 110 coupled to a main antenna 130 and a diversity antenna 140 . The communication module 110 (and its constituent components) can be controlled by the controller 120 . The communication module 110 includes a transceiver 112 configured to convert between analog radio frequency (RF) signals and digital data signals. To this end, the transceiver 112 may include a digital-to-analog converter, an analog-to-digital converter, a local oscillator for modulating or demodulating a baseband analog signal to or from a carrier frequency, a A baseband processor, or other component, that converts between samples and data bits (eg, voice or other types of data).

通信模块110还包括RF模块114，耦接在主天线130与收发机112之间。因为RF模块114可以在物理上接近主天线130，以减小由于线缆(cable)损耗所造成的衰减，所以RF模块114可被称为前端模块(FEM)。RF模块114可对从主天线130接收的模拟信号执行处理以用于收发机112，或者对从收发机112接收的模拟信号执行处理以用于经由主天线130进行发射。为此，RF模块114可包括滤波器、功率放大器、频带选择开关、匹配电路、以及其它部件。类似地，通信模块110包括耦接在分集天线140和收发机112之间的分集RF模块116，其执行类似的处理。The communication module 110 further includes an RF module 114 coupled between the main antenna 130 and the transceiver 112 . Because the RF module 114 may be physically close to the main antenna 130 to reduce attenuation due to cable loss, the RF module 114 may be referred to as a front-end module (FEM). The RF module 114 may perform processing on analog signals received from the main antenna 130 for use in the transceiver 112 , or perform processing on analog signals received from the transceiver 112 for transmission via the main antenna 130 . To this end, the RF module 114 may include filters, power amplifiers, band selection switches, matching circuits, and other components. Similarly, communication module 110 includes diversity RF module 116 coupled between diversity antenna 140 and transceiver 112, which performs similar processing.

当信号被发送到无线装置时，该信号可在主天线130和分集天线140两者处被接收。主天线130和分集天线140可在物理上间隔开，使得主天线130和分集天线140处的信号以不同的特性被接收。例如，在一实施例中，主天线130和分集天线140可接收具有不同衰减、噪声、频率响应或相移的信号。收发机112可使用具有不同特性的两个信号来确定与信号对应的数据比特。在一些实施方式中，收发机112基于所述特性在主天线130和分集天线140之间进行选择，诸如选择具有最高信噪比的天线。在一些实施方式中，收发机112组合来自主天线130和分集天线140的信号以提高组合信号的信噪比。在一些实施方式中，收发机112处理信号以执行多输入/多输出(MIMO)通信。When a signal is sent to a wireless device, the signal may be received at both the main antenna 130 and the diversity antenna 140 . Main antenna 130 and diversity antenna 140 may be physically spaced apart such that signals at main antenna 130 and diversity antenna 140 are received with different characteristics. For example, in one embodiment, main antenna 130 and diversity antenna 140 may receive signals with different attenuation, noise, frequency response, or phase shift. The transceiver 112 may use the two signals having different characteristics to determine the data bits corresponding to the signals. In some implementations, the transceiver 112 selects between the main antenna 130 and the diversity antenna 140 based on the characteristic, such as selecting the antenna with the highest signal-to-noise ratio. In some implementations, the transceiver 112 combines the signals from the main antenna 130 and the diversity antenna 140 to improve the signal-to-noise ratio of the combined signal. In some implementations, the transceiver 112 processes signals to perform multiple-input/multiple-output (MIMO) communications.

因为分集天线140与主天线130在物理上间隔开，所以分集天线140通过诸如线缆或印刷电路板(PCB)迹线(trace)之类的传输线路135耦接到通信模块110。在一些实施方式中，传输线路135是有损耗的并且在分集天线140处接收到的信号到达通信模块110之前使其衰减。因此，在一些实施方式中，如下所述，增益被应用到在分集天线140处接收到的信号。增益(以及其它模拟处理，诸如滤波)可通过分集接收机模块来被应用。因为这样的分集接收机模块可以定位得在物理上接近分集天线140，所以其可被称为分集接收机前端模块。Because the diversity antenna 140 is physically separated from the main antenna 130, the diversity antenna 140 is coupled to the communication module 110 through a transmission line 135, such as a cable or a printed circuit board (PCB) trace. In some embodiments, transmission line 135 is lossy and attenuates signals received at diversity antenna 140 before reaching communication module 110 . Accordingly, in some embodiments, a gain is applied to signals received at diversity antenna 140, as described below. Gain (and other analog processing, such as filtering) can be applied through the diversity receiver module. Because such a diversity receiver module may be located physically close to the diversity antenna 140, it may be referred to as a diversity receiver front-end module.

图2示出了包括分集接收机(DRx)前端模块(FEM)210的DRx配置200。DRx配置200包括分集天线140，其配置为接收分集信号并且提供该分集信号给DRxFEM210。DRxFEM210配置为对从分集天线140接收的分集信号执行处理。例如，DRxFEM210可配置为将分集信号滤波到例如控制器120所指示的一个或多个激活频率带。作为另一示例，DRxFEM210可配置为放大分集信号。为此，DRxFEM210可包括滤波器、低噪声放大器、频带选择开关、匹配电路、以及其它部件。FIG. 2 shows a DRx configuration 200 including a diversity receiver (DRx) front end module (FEM) 210 . DRx configuration 200 includes diversity antenna 140 configured to receive a diversity signal and provide the diversity signal to DRxFEM 210 . DRxFEM 210 is configured to perform processing on diversity signals received from diversity antenna 140 . For example, DRxFEM 210 may be configured to filter the diversity signal to one or more active frequency bands as indicated by controller 120, for example. As another example, DRxFEM 210 may be configured to amplify diversity signals. To this end, DRxFEM 210 may include filters, low noise amplifiers, band selection switches, matching circuits, and other components.

DRxFEM210经由传输线路135将处理后的分集信号发送到下游模块，诸如分集RF(D-RF)模块116，其将进一步处理后的分集信号馈送到收发机112。分集RF模块116(以及，在一些实施方式中，收发机)由控制器120控制。在一些实施方式中，控制器120可以实施在收发机112内。DRxFEM 210 sends the processed diversity signal via transmission line 135 to a downstream module, such as diversity RF (D-RF) module 116 , which feeds the further processed diversity signal to transceiver 112 . The diversity RF module 116 (and, in some embodiments, the transceiver) is controlled by a controller 120 . In some implementations, the controller 120 may be implemented within the transceiver 112 .

图3示出了在一些实施例中，分集接收机(DRx)配置300可以包括DRx模块310，DRx模块310具有与多个频率带对应的多个路径。DRx配置300包括配置为接收分集信号的分集天线140。在一些实施方式中，分集信号可以是包括调制到单个频率带上的数据的单频带信号。在一些实施方式中，分集信号可以是包括调制到多个频率带上的数据的多频带信号(也称为频带间载波聚合信号)。Figure 3 shows that in some embodiments, a diversity receiver (DRx) configuration 300 may include a DRx module 310 having multiple paths corresponding to multiple frequency bands. DRx configuration 300 includes diversity antenna 140 configured to receive diversity signals. In some embodiments, the diversity signal may be a single-band signal comprising data modulated onto a single frequency band. In some embodiments, the diversity signal may be a multi-band signal (also referred to as an inter-band carrier aggregation signal) comprising data modulated onto multiple frequency bands.

DRx模块310具有接收来自分集天线140的分集信号的输入以及(经由传输线路135和分集RF模块320)提供处理后的分集信号给收发机330的输出。DRx模块310的输入馈送到第一复用器(MUX)311的输入中。第一复用器311包括多个复用器输出，其每个对应于DRx模块310的输入和输出之间的路径。每个路径可对应于相应的频率带。DRx模块310的输出由第二复用器312的输出提供。第二复用器312包括多个复用器输入，其每个对应于DRx模块310的输入和输出之间的路径之一。The DRx module 310 has an input that receives the diversity signal from the diversity antenna 140 and an output that provides the processed diversity signal to the transceiver 330 (via the transmission line 135 and the diversity RF module 320 ). The input of the DRx module 310 is fed into the input of a first multiplexer (MUX) 311 . The first multiplexer 311 includes a plurality of multiplexer outputs each corresponding to a path between an input and an output of the DRx module 310 . Each path may correspond to a respective frequency band. The output of the DRx module 310 is provided by the output of the second multiplexer 312 . The second multiplexer 312 includes a plurality of multiplexer inputs each corresponding to one of the paths between the input and the output of the DRx module 310 .

频率带可以是诸如UMTS(通用移动通信系统)频率带之类的蜂窝频率带。例如，第一频率带可以是在1930兆赫兹(MHz)和1990MHz之间的UMTS下行链路或“Rx”频带2，第二频率带可以是在869MHz和894MHz之间的UMTS下行链路或“Rx”频带5。可以使用其它下行链路频率带，诸如下面在表1中描述的那些或其它非UMTS频率带。The frequency band may be a cellular frequency band such as a UMTS (Universal Mobile Telecommunications System) frequency band. For example, the first frequency band may be UMTS downlink or "Rx" band 2 between 1930 megahertz (MHz) and 1990 MHz, and the second frequency band may be UMTS downlink or "Rx" between 869 MHz and 894 MHz. Rx" band 5. Other downlink frequency bands may be used, such as those described below in Table 1 or other non-UMTS frequency bands.

在一些实施方式中，DRx模块310包括DRx控制器302，其接收来自控制器120(也称为通信控制器)的信号，并且基于接收信号来选择性地激活输入和输出之间的多个路径中的一个或多个路径。在一些实施方式中，DRx模块310不包括DRx控制器302，控制器120直接选择性地激活多个路径中的一个或多个路径。In some implementations, the DRx module 310 includes a DRx controller 302 that receives signals from the controller 120 (also referred to as a communications controller) and selectively activates multiple paths between inputs and outputs based on the received signals One or more paths in . In some implementations, the DRx module 310 does not include the DRx controller 302, and the controller 120 directly selectively activates one or more paths among the plurality of paths.

如上所述，在一些实施方式中，分集信号是单频带信号。因此，在一些实施方式中，第一复用器311是单刀多掷(SPMT)开关，其基于从DRx控制器302接收到的信号将分集信号路由到多个路径中的与单频带信号的频率带对应的一个路径。DRx控制器302可基于DRx控制器302从通信控制器120接收到的频带选择信号来生成所述信号。类似地，在一些实施方式中，第二复用器312是SPMT开关，其基于从DRx控制器302接收到的信号来路由来自多个路径中的与单频带信号的频率带对应的一个路径的信号。As noted above, in some embodiments the diversity signal is a single-band signal. Thus, in some embodiments, the first multiplexer 311 is a single-pole multiple-throw (SPMT) switch that routes the diversity signal into multiple paths based on the signal received from the DRx controller 302 at the same frequency as the single-band signal with a corresponding path. The DRx controller 302 may generate the signal based on a band select signal that the DRx controller 302 receives from the communication controller 120 . Similarly, in some embodiments, the second multiplexer 312 is an SPMT switch that routes signals from one of the multiple paths corresponding to the frequency band of the single-band signal based on the signal received from the DRx controller 302. Signal.

如上所述，在一些实施方式中，分集信号是多频带信号。因此，在一些实施方式中，第一复用器311是信号分离器，其基于从DRx控制器302接收到的分离器控制信号将分集信号路由到多个路径中的与多频带信号的两个或更多频率带对应的两个或更多路径。信号分离器的功能可实施为SPMT开关、双工器滤波器、或这些的某种组合。类似地，在一些实施方式中，第二复用器312是信号组合器，其基于从DRx控制器302接收到的组合器控制信号组合来自多个路径中的与多频带信号的两个或更多频率带对应的两个或更多路径的信号。信号组合器的功能可实施为SPMT开关、双工器(diplexer)滤波器、或这些的某种组合。DRx控制器302可基于DRx控制器302从通信控制器120接收到的频带选择信号来生成分离器控制信号和组合器控制信号。As noted above, in some embodiments the diversity signal is a multi-band signal. Therefore, in some embodiments, the first multiplexer 311 is a demultiplexer that routes the diversity signal to two of the multiple paths with the multiband signal based on the demultiplexer control signal received from the DRx controller 302 . or more frequency bands corresponding to two or more paths. The function of the demultiplexer may be implemented as a SPMT switch, a diplexer filter, or some combination of these. Similarly, in some embodiments, the second multiplexer 312 is a signal combiner that combines two or more multiband signals from multiple paths based on a combiner control signal received from the DRx controller 302. Multiple frequency bands correspond to two or more paths of signals. The function of the signal combiner may be implemented as a SPMT switch, a diplexer filter, or some combination of these. The DRx controller 302 may generate the splitter control signal and the combiner control signal based on the band selection signal that the DRx controller 302 receives from the communication controller 120 .

因此，在一些实施方式中，DRx控制器302配置为基于DRx控制器302(例如，从通信控制器120)接收到的频带选择信号来选择性地激活多个路径中的一个或多个路径。在一些实施方式中，DRx控制器302配置为通过发送分离器控制信号到信号分离器和发送组合器控制信号到信号组合器来选择性激活多个路径中的一个或多个路径。Accordingly, in some embodiments, the DRx controller 302 is configured to selectively activate one or more of the plurality of paths based on a band select signal received by the DRx controller 302 (eg, from the communications controller 120 ). In some embodiments, the DRx controller 302 is configured to selectively activate one or more of the plurality of paths by sending a splitter control signal to the signal splitter and a combiner control signal to the signal combiner.

DRx模块310包括多个带通滤波器313a-313d。带通滤波器313a-313d中的每一个沿多个路径中的对应一个路径设置，并且配置为将在带通滤波器处接收到的信号滤波到多个路径中的所述一个路径的相应频率带。在一些实施方式中，带通滤波器313a-313d还配置为将在带通滤波器处接收到的信号滤波到多个路径中的所述一个路径的相应频率带的下行链路频率子带。DRx模块310包括多个放大器314a-314d。放大器314a-314d中的每一个沿多个路径中的对应一个路径设置，并且配置为放大在该放大器处接收到的信号。The DRx module 310 includes a plurality of bandpass filters 313a-313d. Each of the bandpass filters 313a-313d is disposed along a corresponding one of the plurality of paths and is configured to filter a signal received at the bandpass filter to a corresponding frequency of the one of the plurality of paths bring. In some embodiments, the bandpass filters 313a-313d are further configured to filter signals received at the bandpass filters to downlink frequency subbands of the corresponding frequency band of said one of the plurality of paths. DRx module 310 includes a plurality of amplifiers 314a-314d. Each of the amplifiers 314a-314d is disposed along a corresponding one of the plurality of paths and is configured to amplify a signal received at the amplifier.

在一些实施方式中，放大器314a-314d是窄带放大器，配置为放大其中设置所述放大器的路径的相应频率带内的信号。在一些实施方式中，放大器314a-314d可由DRx控制器302控制。例如，在一些实施方式中，放大器314a-314d中的每个包括使能/禁止输入，并且基于在使能/禁止输入处接收到的放大器使能信号而被使能(或禁止)。放大器使能信号可由DRx控制器302发送。因此，在一些实施方式中，DRx控制器302配置为通过发送放大器使能信号到分别沿多个路径中的一个或多个路径设置的放大器314a-314d中的一个或多个来选择性地激活多个路径中的一个或多个。在这样的实施方式中，并非由DRx控制器302控制，第一复用器311可以是信号分离器，其路由分集信号到多个路径中的每个，第二复用器312可以是信号组合器，其组合来自多个路径中的每个路径的信号。然而，在其中DRx控制器302控制第一复用器311和第二复用器312的实施方式中，DRx控制器302还可使能(或禁止)特定放大器314a-314d以例如节省电池。In some embodiments, the amplifiers 314a-314d are narrowband amplifiers configured to amplify signals within the respective frequency bands of the paths in which the amplifiers are disposed. In some implementations, the amplifiers 314a - 314d may be controlled by the DRx controller 302 . For example, in some implementations, each of the amplifiers 314a-314d includes an enable/disable input and is enabled (or disabled) based on an amplifier enable signal received at the enable/disable input. The amplifier enable signal may be sent by the DRx controller 302 . Accordingly, in some embodiments, the DRx controller 302 is configured to selectively activate by sending an amplifier enable signal to one or more of the amplifiers 314a-314d respectively disposed along one or more of the plurality of paths One or more of multiple paths. In such an embodiment, instead of being controlled by the DRx controller 302, the first multiplexer 311 may be a signal splitter that routes the diversity signal to each of the multiple paths, and the second multiplexer 312 may be a signal combiner filter that combines signals from each of the multiple paths. However, in embodiments where the DRx controller 302 controls the first multiplexer 311 and the second multiplexer 312, the DRx controller 302 may also enable (or disable) certain amplifiers 314a-314d, eg, to save battery.

在一些实施方式中，放大器314a-314d是可变增益放大器(VGA)。因此，在一些实施方式中，DRx模块310包括多个可变增益放大器(VGA)，每个VGA沿多个路径中的对应一个路径设置并且配置为以由从DRx控制器302接收到的放大器控制信号控制的增益来放大在VGA处接收到的信号。In some implementations, the amplifiers 314a-314d are variable gain amplifiers (VGAs). Accordingly, in some embodiments, the DRx module 310 includes a plurality of variable gain amplifiers (VGAs), each VGA disposed along a corresponding one of a plurality of paths and configured to be controlled by amplifiers received from the DRx controller 302 Signal controlled gain to amplify the signal received at the VGA.

VGA的增益可以是可旁路的、可阶梯变化的、可连续变化的。在一些实施方式中，各VGA中的至少一个包括固定增益放大器和可由放大器控制信号控制的旁路开关。旁路开关可(在第一位置)接通固定增益放大器的输入到固定增益放大器的输出之间的线路，使信号旁路过固定增益放大器。旁路开关可(在第二位置)断开输入和输出之间的线路，使信号通过固定增益放大器传递。在一些实施方式中，当旁路开关在第一位置时，固定增益放大器被禁止或以其它方式重新配置以适应旁路模式。The VGA gain can be bypassed, stepped, or continuously varied. In some embodiments, at least one of the VGAs includes a fixed gain amplifier and a bypass switch controllable by an amplifier control signal. The bypass switch is operable (in the first position) to switch the line between the input of the fixed gain amplifier and the output of the fixed gain amplifier, bypassing the signal through the fixed gain amplifier. The bypass switch can (in the second position) disconnect the line between the input and output, allowing the signal to pass through the fixed gain amplifier. In some implementations, when the bypass switch is in the first position, the fixed gain amplifier is disabled or otherwise reconfigured to accommodate the bypass mode.

在一些实施方式中，各VGA中的至少一个包括增益可阶梯变化的放大器(step-variablegainamplifier)，其配置为以由放大器控制信号指示的多个配置量之一的增益来放大在VGA处接收到的信号。在一些实施方式中，各VGA中的至少一个包括增益可连续变化的放大器(continuously-variablegainamplifier)，其配置为以与放大器控制信号成比例的增益来放大在VGA处接收到的信号。In some embodiments, at least one of the VGAs includes a step-variable gain amplifier configured to amplify a signal received at the VGA with a gain of one of a plurality of configurable amounts indicated by the amplifier control signal. signal of. In some embodiments, at least one of the VGAs includes a continuously-variable gain amplifier configured to amplify a signal received at the VGA with a gain proportional to the amplifier control signal.

在一些实施方式中，放大器314a-314d是电流可变放大器(VCA)。VCA汲取(draw)的电流可以是可旁路的、可阶梯变化的、可连续变化的。在一些实施方式中，各VCA中的至少一个包括固定电流放大器和可由放大器控制信号控制的旁路开关。旁路开关可(在第一位置)接通固定电流放大器的输入到固定电流放大器的输出之间的线路，使信号旁路过固定电流放大器。旁路开关可(在第二位置)断开输入和输出之间的线路，使信号通过固定电流放大器传递。在一些实施方式中，当旁路开关在第一位置时，固定电流放大器被禁止或以其它方式重新配置以适应旁路模式。In some implementations, amplifiers 314a-314d are variable current amplifiers (VCAs). The current drawn by the VCA can be bypassable, stepwise variable, or continuously variable. In some embodiments, at least one of the VCAs includes a fixed current amplifier and a bypass switch controllable by an amplifier control signal. The bypass switch is operable (in the first position) to switch the line from the input of the fixed current amplifier to the output of the fixed current amplifier, bypassing the signal through the fixed current amplifier. The bypass switch can (in the second position) disconnect the line between the input and output, allowing the signal to pass through the fixed current amplifier. In some implementations, when the bypass switch is in the first position, the fixed current amplifier is disabled or otherwise reconfigured to accommodate the bypass mode.

在一些实施方式中，各VCA中的至少一个包括电流可阶梯变化的放大器，其配置为通过汲取由放大器控制信号指示的多个配置量之一的电流来放大在VCA处接收到的信号。在一些实施方式中，各VCA中的至少一个包括电流可连续变化的放大器，其配置为通过汲取与放大器控制信号成比例的电流来放大在VCA处接收到的信号。In some embodiments, at least one of the VCAs includes a current step amplifier configured to amplify a signal received at the VCA by drawing one of a plurality of configurable amounts of current indicated by the amplifier control signal. In some embodiments, at least one of the VCAs includes a continuously variable current amplifier configured to amplify a signal received at the VCA by drawing a current proportional to the amplifier control signal.

在一些实施方式中，放大器314a-314d是固定增益、固定电流放大器。在一些实施方式中，放大器314a-314d是固定增益、可变电流放大器。在一些实施方式中，放大器314a-314d是可变增益、固定电流放大器。在一些实施方式中，放大器314a-314d是可变增益、可变电流放大器。In some implementations, the amplifiers 314a-314d are fixed-gain, fixed-current amplifiers. In some implementations, the amplifiers 314a-314d are fixed gain, variable current amplifiers. In some implementations, the amplifiers 314a-314d are variable gain, fixed current amplifiers. In some implementations, the amplifiers 314a-314d are variable gain, variable current amplifiers.

在一些实施方式中，DRx控制器302基于在输入处接收到的输入信号的服务质量度量(metric)来生成放大器控制信号。在一些实施方式中，DRx控制器302基于从通信控制器120接收到的信号来生成放大器控制信号，从通信控制器120接收到的信号继而又可基于接收信号的服务质量(QoS)度量。接收信号的QoS度量可至少部分地基于分集天线140上接收到的分集信号(例如，在输入处接收到的输入信号)。接收信号的QoS度量还可基于主天线上接收到的信号。在一些实施方式中，DRx控制器302基于分集信号的QoS度量来生成放大器控制信号，而没有从通信控制器120接收信号。In some implementations, the DRx controller 302 generates the amplifier control signal based on a quality of service metric of the input signal received at the input. In some implementations, the DRx controller 302 generates amplifier control signals based on signals received from the communications controller 120, which in turn may be based on quality of service (QoS) metrics of the received signals. The QoS metric for the received signal may be based at least in part on the diversity signal received on diversity antenna 140 (eg, the input signal received at the input). The QoS metric for the received signal may also be based on the signal received on the primary antenna. In some implementations, the DRx controller 302 generates amplifier control signals based on the QoS metrics of the diversity signals without receiving signals from the communications controller 120 .

在一些实施方式中，QoS度量包括信号强度。作为另一示例，QoS度量可包括误码率、数据吞吐量、传输延迟、或任何其它的QoS度量。In some implementations, the QoS metric includes signal strength. As another example, QoS metrics may include bit error rate, data throughput, transmission delay, or any other QoS metric.

如上所述，DRx模块310具有接收来自分集天线140的分集信号的输入以及(经由传输线路135和分集RF模块320)提供处理后的分集信号给收发机330的输出。分集RF模块320经由传输线路135接收处理后的分集信号并且执行进一步的处理。特别地，处理后的分集信号由分集RF复用器321分离或路由到一个或多个路径，在其上分离或路由的信号被对应的带通滤波器323a-323d滤波并且被对应的放大器324a-324d放大。每个放大器324a-324d的输出被提供到收发机330。As mentioned above, the DRx module 310 has an input that receives the diversity signal from the diversity antenna 140 and an output that provides the processed diversity signal to the transceiver 330 (via the transmission line 135 and the diversity RF module 320 ). Diversity RF module 320 receives the processed diversity signal via transmission line 135 and performs further processing. In particular, the processed diversity signal is split or routed to one or more paths by diversity RF multiplexer 321, whereupon the split or routed signal is filtered by a corresponding bandpass filter 323a-323d and by a corresponding amplifier 324a -324d zoom in. The output of each amplifier 324a - 324d is provided to a transceiver 330 .

分集RF复用器321可由控制器120控制(直接地或者经由片上(on-chip)分集RF控制器)以选择性地激活一个或多个路径。类似地，放大器324a-324d可由控制器102控制。例如，在一些实施方式中，放大器324a-324d中的每个包括使能/禁止输入并且基于放大器使能信号而被使能(或禁止)。在一些实施方式中，放大器324a-324d是可变增益放大器(VGA)，其以从控制器120(或者由控制器120控制的片上分集RF控制器)接收到的放大器控制信号所控制的增益来放大在VGA处接收到的信号。在一些实施方式中，放大器324a-324d是可变电流放大器(VCA)。Diversity RF multiplexer 321 may be controlled by controller 120 (either directly or via an on-chip diversity RF controller) to selectively activate one or more paths. Similarly, amplifiers 324a - 324d may be controlled by controller 102 . For example, in some implementations, each of the amplifiers 324a-324d includes an enable/disable input and is enabled (or disabled) based on an amplifier enable signal. In some implementations, amplifiers 324a-324d are variable gain amplifiers (VGAs) that operate at a gain controlled by an amplifier control signal received from controller 120 (or an on-chip diversity RF controller controlled by controller 120). Amplifies the signal received at VGA. In some implementations, amplifiers 324a-324d are variable current amplifiers (VCAs).

由于添加到接收机链的DRx模块310已经包括分集RF模块320，所以DRx配置300中的带通滤波器的数量加倍。因此，在一些实施方式中，带通滤波器323a-323d不被包括在分集RF模块320中。而是，DRx模块310的带通滤波器313a-313d被用于减小带外(out-of-band)阻滞信号(blocker)的强度。此外，分集RF模块320的自动增益控制(AGC)表可被移位(shift)，以将分集RF模块320的放大器324a-324d提供的增益量减小由DRx模块310的放大器314a-314d提供的增益量。Since the DRx module 310 added to the receiver chain already includes the diversity RF module 320, the number of bandpass filters in the DRx configuration 300 is doubled. Therefore, in some embodiments, the bandpass filters 323a - 323d are not included in the diversity RF module 320 . Instead, the bandpass filters 313a-313d of the DRx module 310 are used to reduce the strength of out-of-band blockers. Additionally, the automatic gain control (AGC) table of diversity RF module 320 may be shifted to reduce the amount of gain provided by amplifiers 324a-324d of diversity RF module 320 by the amount of gain provided by amplifiers 314a-314d of DRx module 310. Amount of gain.

例如，如果DRx模块增益是15dB并且接收机灵敏度是-100dBm，那么分集RF模块320将看到-85dBm的灵敏度。如果分集RF模块320的闭环AGC是激活的，那么其增益将自动下降15dB。然而，信号分量和带外阻滞分量都被接收并且放大15dB。因此，分集RF模块320的15dB增益下降也可以伴随有其线性度的15dB提高。特别地，分集RF模块320的放大器324a-324d可被设计为使得放大器的线性度随着增益减小(或电流增大)而增大。For example, if the DRx module gain is 15dB and the receiver sensitivity is -100dBm, then the diversity RF module 320 will see a sensitivity of -85dBm. If the closed-loop AGC of the diversity RF module 320 is active, its gain will be automatically reduced by 15dB. However, both the signal component and the out-of-band blocking component are received and amplified by 15dB. Therefore, a 15dB gain reduction of the diversity RF module 320 may also be accompanied by a 15dB improvement in its linearity. In particular, the amplifiers 324a-324d of the diversity RF module 320 may be designed such that the linearity of the amplifiers increases as the gain decreases (or the current increases).

在一些实施方式中，控制器120控制DRx模块310的放大器314a-314d和分集RF模块320的放大器324a-324d的增益(和/或电流)。如在上述示例中，控制器120可响应于DRx模块310的放大器314a-314d所提供的增益量的增大而减小由分集RF模块320的放大器324a-324d提供的增益量。因此，在一些实施方式中，控制器120配置为基于(用于DRx模块310的放大器314a-314d的)放大器控制信号来生成(用于分集RF模块320的放大器324a-324d的)下游放大器控制信号，以控制经由传输线路135耦接到(DRx模块310的)输出的一个或多个下游放大器324a-324d的增益。在一些实施方式中，控制器120还基于放大器控制信号来控制无线装置的其它部件(诸如，前端模块(FEM)中的放大器)的增益。In some implementations, the controller 120 controls the gain (and/or current) of the amplifiers 314 a - 314 d of the DRx module 310 and the amplifiers 324 a - 324 d of the diversity RF module 320 . As in the example above, the controller 120 may decrease the amount of gain provided by the amplifiers 324a - 324d of the diversity RF module 320 in response to an increase in the amount of gain provided by the amplifiers 314a - 314d of the DRx module 310 . Accordingly, in some embodiments, the controller 120 is configured to generate downstream amplifier control signals (for the amplifiers 324a-324d of the diversity RF module 320) based on the amplifier control signals (for the amplifiers 314a-314d of the DRx module 310) , to control the gain of one or more downstream amplifiers 324 a - 324 d coupled to the output (of the DRx module 310 ) via the transmission line 135 . In some implementations, the controller 120 also controls the gain of other components of the wireless device, such as an amplifier in a front-end module (FEM), based on the amplifier control signal.

如上所述，在一些实施方式中，不包括带通滤波器323a-323d。因此，在一些实施方式中，下游放大器324a-324d中的至少一个经由传输线路135耦接到(DRx模块310的)输出，而没有传递通过下游带通滤波器。As noted above, in some embodiments, bandpass filters 323a-323d are not included. Thus, in some embodiments, at least one of the downstream amplifiers 324a-324d is coupled to the output (of the DRx module 310) via the transmission line 135 without passing through a downstream bandpass filter.

图4示出了在一些实施例中，分集接收机配置400可以包括分集RF模块420，分集RF模块420比分集接收机(DRx)模块310具有更少的放大器。分集接收机配置400包括分集天线140和DRx模块310，如上面关于图3所述。DRx模块310的输出经由传输线路135传递到分集RF模块420，其与图3中的分集RF模块320的不同之处在于图4中的分集RF模块420比DRx模块310包括更少的放大器。FIG. 4 shows that in some embodiments, the diversity receiver configuration 400 may include a diversity RF module 420 having fewer amplifiers than the diversity receiver (DRx) module 310 . Diversity receiver configuration 400 includes diversity antenna 140 and DRx module 310 as described above with respect to FIG. 3 . The output of the DRx module 310 is delivered via the transmission line 135 to the diversity RF module 420 , which differs from the diversity RF module 320 in FIG. 3 in that the diversity RF module 420 in FIG. 4 includes fewer amplifiers than the DRx module 310 .

如上所述，在一些实施方式中，分集RF模块420不包括带通滤波器。因此，在一些实施方式中，分集RF模块420的一个或多个放大器424不需要是针对特定频带的(band-specific)。特别地，分集RF模块420可包括一个或多个路径，每个路径包括放大器424，所述路径不是与DRx模块310的路径1对1映射的。这样的路径(或对应的放大器)的映射可储存在控制器120中。As noted above, in some implementations, diversity RF module 420 does not include a bandpass filter. Thus, in some embodiments, the one or more amplifiers 424 of the diversity RF module 420 need not be band-specific. In particular, the diversity RF module 420 may include one or more paths, each path including an amplifier 424 , that are not mapped 1-to-1 with the paths of the DRx module 310 . A map of such paths (or corresponding amplifiers) may be stored in controller 120 .

因此，虽然DRx模块310包括多个路径，每个路径对应于一频率带，但是分集RF模块420可包括不对应到单个频率带的一个或多个路径。Thus, while DRx module 310 includes multiple paths, each path corresponding to a frequency band, diversity RF module 420 may include one or more paths that do not correspond to a single frequency band.

在一些实施方式(如图4所示)中，分集RF模块420包括单个宽带或可调放大器424，其放大从传输线路135接收到的信号并且输出放大信号到复用器421。复用器421包括多个复用器输出，每个复用器输出对应于相应的频率带。在一些实施方式中，分集RF模块420不包括任何放大器。In some embodiments (as shown in FIG. 4 ), diversity RF module 420 includes a single broadband or tunable amplifier 424 that amplifies the signal received from transmission line 135 and outputs the amplified signal to multiplexer 421 . Multiplexer 421 includes a plurality of multiplexer outputs, each multiplexer output corresponding to a respective frequency band. In some implementations, diversity RF module 420 does not include any amplifiers.

在一些实施方式中，分集信号是单频带信号。因此，在一些实施方式中，复用器421是SPMT开关，其基于从控制器120接收到的信号将分集信号路由到多个输出中的与所述单频带信号的频率带对应的一个输出。在一些实施方式中，分集信号多频带信号。因此，在一些实施方式中，复用器421是信号分离器，其基于从控制器120接收到的分离器控制信号将分集信号路由到多个输出中的与所述多频带信号的两个或更多频率带对应的两个或更多输出。在一些实施方式中，分集RF模块420可与收发机330组合为单个模块。In some embodiments, the diversity signal is a single-band signal. Thus, in some embodiments, multiplexer 421 is a SPMT switch that routes the diversity signal to one of multiple outputs corresponding to the frequency band of the single-band signal based on the signal received from controller 120 . In some embodiments, the diversity signal is a multi-band signal. Thus, in some embodiments, multiplexer 421 is a signal splitter that routes a diversity signal to two or more of a plurality of outputs with the multiband signal based on a splitter control signal received from controller 120. Two or more outputs for more frequency bands. In some embodiments, diversity RF module 420 may be combined with transceiver 330 into a single module.

在一些实施方式中，分集RF模块420包括多个放大器，每个放大器对应于一组频率带。来自传输线路135的信号可被馈送到频带分离器中，该频带分离器沿第一路径输出高频到高频放大器并且沿第二路径输出低频到低频放大器。每个放大器的输出可被提供到复用器421，复用器421配置为将信号路由到收发机330的对应输入。In some implementations, diversity RF module 420 includes multiple amplifiers, each amplifier corresponding to a set of frequency bands. Signals from transmission line 135 may be fed into a band splitter that outputs high frequency to a high frequency amplifier along a first path and low frequency to a low frequency amplifier along a second path. The output of each amplifier may be provided to a multiplexer 421 configured to route the signal to a corresponding input of the transceiver 330 .

图5示出了在一些实施例中，分集接收机配置500可以包括DRx模块510，DRx模块510耦接到模块外滤波器513。DRx模块510可包括配置为容纳多个部件的封装衬底501和实施在封装衬底501上的接收系统。DRx模块510可包括一个或多个信号路径，其被路由到DRx模块510外并且使得系统集成者、设计者或制造者可以支持用于任何期望频带的滤波器。FIG. 5 shows that in some embodiments, a diversity receiver configuration 500 may include a DRx module 510 coupled to an off-module filter 513 . The DRx module 510 may include a packaging substrate 501 configured to house a plurality of components and a receiving system implemented on the packaging substrate 501 . The DRx module 510 may include one or more signal paths that are routed out of the DRx module 510 and allow a system integrator, designer, or manufacturer to support filters for any desired frequency band.

DRx模块510包括在DRx模块510的输入和输出之间的多个路径。DRx模块510包括在输入和输出之间的、由被DRx控制器502控制的旁路开关519激活的旁路路径。虽然图5图示了单个旁路开关519，但是在一些实施方式中，旁路开关519可包括多个开关(例如，设置得在物理上接近输入的第一开关和设置得在物理上接近输出的第二开关)。如图5所示，旁路路径不包括滤波器或放大器。The DRx module 510 includes multiple paths between the input and the output of the DRx module 510 . The DRx module 510 includes a bypass path between the input and the output that is activated by a bypass switch 519 controlled by the DRx controller 502 . Although FIG. 5 illustrates a single bypass switch 519, in some implementations, the bypass switch 519 may include multiple switches (e.g., a first switch positioned physically close to the input and a switch positioned physically close to the output the second switch). As shown in Figure 5, the bypass path does not include filters or amplifiers.

DRx模块510包括多个复用器路径，其包括第一复用器511和第二复用器512。复用器路径包括多个模块上路径(on-modulepaths)，其包括第一复用器511、实施在封装衬底501上的带通滤波器313a-313d、实施在封装衬底501上的放大器314a-314d、以及第二复用器512。复用器路径包括一个或多个模块外路径，其包括第一复用器511、实施在封装衬底501外的带通滤波器513、放大器514、以及第二复用器512。放大器514可以是实施在封装衬底501上的宽带放大器，或者也可以被实施在封装衬底501外。如上所述，放大器314a-314d、514可以是可变增益放大器和/或可变电流放大器。The DRx module 510 includes multiple multiplexer paths including a first multiplexer 511 and a second multiplexer 512 . The multiplexer path includes a plurality of on-module paths including the first multiplexer 511, the bandpass filters 313a-313d implemented on the packaging substrate 501, the amplifiers implemented on the packaging substrate 501 314a-314d, and the second multiplexer 512. The multiplexer path includes one or more off-module paths including a first multiplexer 511 , a bandpass filter 513 implemented outside the package substrate 501 , an amplifier 514 , and a second multiplexer 512 . The amplifier 514 may be a broadband amplifier implemented on the packaging substrate 501 , or may also be implemented outside the packaging substrate 501 . As mentioned above, amplifiers 314a-314d, 514 may be variable gain amplifiers and/or variable current amplifiers.

DRx控制器502配置为选择性地激活输入和输出之间的多个路径中的一个或多个。在一些实施方式中，DRx控制器502配置为基于DRx控制器502(例如，从通信控制器)所接收到的频带选择信号来选择性地激活多个路径中的一个或多个路径。DRx控制器502可以通过例如断开或接通旁路开关519，使能或禁止放大器314a-314d、514，控制复用器511、512，或者通过其它机制，来选择性地激活路径。例如，DRx控制器502可以断开或接通沿路径的开关(例如，在滤波器313a-313d、513和放大器314a-314d、514之间的开关)，或者通过将放大器314a-314d、514的增益设置为基本为零。The DRx controller 502 is configured to selectively activate one or more of the plurality of paths between the input and the output. In some embodiments, the DRx controller 502 is configured to selectively activate one or more of the plurality of paths based on a band select signal received by the DRx controller 502 (eg, from a communications controller). The DRx controller 502 may selectively activate paths by, for example, opening or closing bypass switch 519, enabling or disabling amplifiers 314a-314d, 514, controlling multiplexers 511, 512, or by other mechanisms. For example, the DRx controller 502 can open or close switches along the path (e.g., switches between the filters 313a-313d, 513 and the amplifiers 314a-314d, 514), or by switching the Gain is set to essentially zero.

图6A示出了在一些实施例中，分集接收机配置600可以包括DRx模块610，DRx模块610具有一个或多个相位匹配部件624a-624b。DRx模块610包括从DRx模块610的耦接到天线140的输入到DRx模块610的耦接到传输线路135的输出的两个路径。Figure 6A shows that in some embodiments, a diversity receiver configuration 600 may include a DRx module 610 having one or more phase matching components 624a-624b. The DRx module 610 includes two paths from an input of the DRx module 610 coupled to the antenna 140 to an output of the DRx module 610 coupled to the transmission line 135 .

在图6A的DRx模块610中，信号分离器和带通滤波器实施为双工器611。双工器611包括耦接到天线140的输入、耦接到第一放大器314a的第一输出和耦接到第二放大器314b的第二输出。在第一输出处，双工器611输出在输入处(例如，从天线140)接收到的、滤波到第一频率带的信号。在第二输出处，双工器611输出在输入处接收到的、滤波到第二频率带的信号。在一些实施方式中，双工器611可以利用三工器(triplexer)、四工器(quadplexer)、或任何其它复用器来取代，该任何其它复用器配置为将在DRx模块610的输入处接收到的输入信号分离为相应多个频率带处的沿多个路径传播的多个信号。In the DRx module 610 of FIG. 6A , the demultiplexer and bandpass filter are implemented as duplexers 611 . The duplexer 611 includes an input coupled to the antenna 140, a first output coupled to the first amplifier 314a, and a second output coupled to the second amplifier 314b. At a first output, duplexer 611 outputs the signal received at the input (eg, from antenna 140 ) filtered to a first frequency band. At the second output, the diplexer 611 outputs the signal received at the input filtered to the second frequency band. In some embodiments, the diplexer 611 can be replaced by a triplexer, a quadplexer, or any other multiplexer configured to combine the input at the DRx module 610 The input signal received at is separated into a plurality of signals at corresponding plurality of frequency bands propagating along a plurality of paths.

如上所述，放大器314a-314b中的每一个沿各路径中的对应一个路径设置，并且配置为放大在放大器处接收到的信号。放大器314a-314b的输出在由信号组合612进行组合之前，被馈送通过对应的相移部件624a-624b。As described above, each of the amplifiers 314a-314b is disposed along a corresponding one of the paths and is configured to amplify a signal received at the amplifier. The outputs of amplifiers 314a-314b are fed through corresponding phase shifting elements 624a-624b before being combined by signal combining 612.

信号组合器612包括耦接到第一相移部件624a的第一输入、耦接到第二相移部件624b的第二输入、和耦接到DRx模块610的输出的输出。信号组合器的输出处的信号是第一输入和第二输入处的信号之和。因此，信号组合器配置为组合沿多个路径传播的信号。Signal combiner 612 includes a first input coupled to first phase shifting element 624 a , a second input coupled to second phase shifting element 624 b , and an output coupled to the output of DRx module 610 . The signal at the output of the signal combiner is the sum of the signals at the first input and the second input. Accordingly, the signal combiner is configured to combine signals propagating along multiple paths.

当天线140接收到信号时，该信号被双工器611滤波到第一频率带，并且通过第一放大器314a沿第一路径传播。滤波和放大后的信号被第一相移部件624a进行相移，并且馈送到信号组合器612的第一输入。在一些实施方式中，信号组合器612或第二放大器314b不阻止信号在相反方向上沿第二路径继续通过信号组合器612。因此，信号传播通过第二相移部件624b并且通过第二放大器314b，在那里它反射离开双工器611。反射信号传播通过第二放大器314b和第二相移部件624b，以到达信号组合器612的第二输入。When the antenna 140 receives a signal, the signal is filtered to the first frequency band by the duplexer 611 and propagated along the first path through the first amplifier 314a. The filtered and amplified signal is phase shifted by the first phase shifting part 624 a and fed to a first input of the signal combiner 612 . In some implementations, neither the signal combiner 612 nor the second amplifier 314b prevents the signal from continuing through the signal combiner 612 in the opposite direction along the second path. Thus, the signal propagates through the second phase shifting component 624b and through the second amplifier 314b where it reflects off the duplexer 611 . The reflected signal propagates through the second amplifier 314b and the second phase shifting component 624b to reach the second input of the signal combiner 612 .

当(信号组合器612的第一输入处的)初始信号和(信号组合器612的第二输入处的)反射信号异相(out-of-phase)时，由信号组合器612执行的叠加(sumation)导致信号组合器612的输出处的信号弱化。类似地，当初始信号和反射信号同相时，由信号组合器612执行的叠加导致信号组合器612的输出处的信号增强。因此，在一些实施方式中，第二相移部件624b配置为对(至少在第一频率带中的)信号进行相移，使得初始信号和反射信号至少部分地同相。特别地，第二相移部件624b配置为对(至少在第一频率带中的)信号进行相移，使得初始信号和反射信号之和的幅度大于初始信号的幅度。The superposition ( sumation) results in signal attenuation at the output of the signal combiner 612. Similarly, the superposition performed by signal combiner 612 results in signal enhancement at the output of signal combiner 612 when the original and reflected signals are in phase. Thus, in some embodiments, the second phase shifting component 624b is configured to phase shift the signal (at least in the first frequency band) such that the original signal and the reflected signal are at least partially in phase. In particular, the second phase shifting means 624b is configured to phase shift the signal (at least in the first frequency band) such that the magnitude of the sum of the original signal and the reflected signal is greater than the magnitude of the original signal.

例如，第二相移部件624b可配置为对传递通过第二相移部件624b的信号按由通过第二放大器314b的反向传播、反射离开双工器611、和通过第二放大器314b的正向传播所引入的相移的-1/2倍进行相移。作为另一示例，第二相移部件624b可配置为对传递通过第二相移部件624b的信号按360度与由通过第二放大器314b的反向传播、反射离开双工器611、和通过第二放大器314b的正向传播所引入的相移之间的差的一半进行相移。一般地，第二相移部件624b可配置为对传递通过第二相移部件624b的信号进行相移，使得初始信号和反射信号具有360度的整数倍(包括零)的相位差。For example, the second phase shifting element 624b may be configured to transmit the signal passing through the second phase shifting element 624b in the reverse direction through the second amplifier 314b, reflected off the duplexer 611, and forward through the second amplifier 314b. Phase shift by -1/2 times the phase shift introduced by propagation. As another example, the second phase shifting element 624b may be configured to compare the signal passing through the second phase shifting element 624b at 360 degrees by back propagating through the second amplifier 314b, reflecting off the duplexer 611, and passing through the second amplifier 314b. Half the difference between the phase shifts introduced by the forward propagation of the two amplifiers 314b is phase shifted. Generally, the second phase shifting unit 624b can be configured to phase shift the signal passing through the second phase shifting unit 624b such that the original signal and the reflected signal have a phase difference that is an integer multiple of 360 degrees (including zero).

作为示例，初始信号可以在0度(或任何其它基准相位)，通过第二放大器314b的反向传播、反射离开双工器611、和通过第二放大器314b的正向传播可以引入140度的相移。因此，在一些实施方式中，第二相移部件624b配置为对传递通过第二相移部件624b的信号按-70度进行相移。因此，初始信号被第二相移部件624b相移到-70度，被通过第二放大器314b的反向传播、反射离开双工器611、和通过第二放大器314b的正向传播相移到70度，并且被第二相移部件624b相移回到0度。As an example, the initial signal could be at 0 degrees (or any other reference phase), backpropagating through the second amplifier 314b, reflecting off the duplexer 611, and forward propagating through the second amplifier 314b could introduce a phase of 140 degrees. shift. Thus, in some embodiments, the second phase shifting component 624b is configured to phase shift the signal passing through the second phase shifting component 624b by -70 degrees. Thus, the original signal is phase shifted to -70 degrees by the second phase shifting element 624b, phase shifted to 70 degrees by backpropagation through the second amplifier 314b, reflected off the duplexer 611, and forward propagation through the second amplifier 314b. degrees, and is phase shifted back to 0 degrees by the second phase shifter 624b.

在一些实施方式中，第二相移部件624b配置为对传递通过第二相移部件624b的信号按110度进行相移。因此，初始信号被第二相移部件624b相移到110度，被通过第二放大器314b的反向传播、反射离开双工器611、和通过第二放大器314b的正向传播相移到250度，并且被第二相移部件624b相移到360度。In some embodiments, the second phase shifting component 624b is configured to phase shift the signal passing through the second phase shifting component 624b by 110 degrees. Thus, the original signal is phase shifted to 110 degrees by the second phase shifting element 624b, phase shifted to 250 degrees by back propagation through the second amplifier 314b, reflection out of the duplexer 611, and forward propagation through the second amplifier 314b , and is phase shifted to 360 degrees by the second phase shifting part 624b.

同时，天线140所接收到的信号被双工器611滤波到第二频率带，并且通过第二放大器314b沿第二路径传播。滤波和放大后的信号被第二相移部件624b进行相移，并且馈送到信号组合器612的第二输入。在一些实施方式中，信号组合器612或第一放大器314a不阻止信号在相反方向上沿第一路径继续通过信号组合器612。因此，信号传播通过第一相移部件624a并且通过第一放大器314a，在那里它反射离开双工器611。反射信号传播通过第一放大器314a和第一相移部件624a，以到达信号组合器612的第一输入。Meanwhile, the signal received by the antenna 140 is filtered to the second frequency band by the duplexer 611, and propagates along the second path through the second amplifier 314b. The filtered and amplified signal is phase shifted by the second phase shifting part 624b and fed to the second input of the signal combiner 612 . In some implementations, neither the signal combiner 612 nor the first amplifier 314a prevents the signal from continuing through the signal combiner 612 in the opposite direction along the first path. Thus, the signal propagates through the first phase shifting component 624a and through the first amplifier 314a where it reflects off the duplexer 611 . The reflected signal propagates through the first amplifier 314a and the first phase shifting component 624a to reach the first input of the signal combiner 612 .

当(信号组合器612的第二输入处的)初始信号和(信号组合器612的第一输入处的)反射信号异相时，由信号组合器612执行的叠加导致信号组合器612的输出处的信号弱化，当初始信号和反射信号同相时，由信号组合器612执行的叠加导致信号组合器612的输出处的信号增强。因此，在一些实施方式中，第一相移部件624a配置为对(至少在第二频率带中的)信号进行相移，使得初始信号和反射信号至少部分地同相。When the original signal (at the second input of signal combiner 612) and the reflected signal (at the first input of signal combiner 612) are out of phase, the superposition performed by signal combiner 612 results in The superposition performed by the signal combiner 612 results in a signal enhancement at the output of the signal combiner 612 when the original signal and the reflected signal are in phase. Thus, in some embodiments, the first phase shifting component 624a is configured to phase shift the signal (at least in the second frequency band) such that the original signal and the reflected signal are at least partially in phase.

例如，第一相移部件624a可配置为对传递通过第一相移部件624a的信号按由通过第一放大器314a的反向传播、反射离开双工器611、和通过第一放大器314a的正向传播所引入的相移的-1/2倍进行相移。作为另一示例，第一相移部件624a可配置为对传递通过第一相移部件624a的信号按360度与由通过第一放大器314a的反向传播、反射离开双工器611、和通过第一放大器314a的正向传播所引入的相移之间的差的一半进行相移。一般地，第一相移部件624a可配置为对传递通过第一相移部件624a的信号进行相移，使得初始信号和反射信号具有360度的整数倍(包括零)的相位差。For example, the first phase shifting element 624a may be configured to transmit a signal passing through the first phase shifting element 624a in the reverse direction through the first amplifier 314a, reflected off the duplexer 611, and forward through the first amplifier 314a. Phase shift by -1/2 times the phase shift introduced by propagation. As another example, the first phase shifting element 624a may be configured to compare the signal passing through the first phase shifting element 624a 360 degrees by backpropagating through the first amplifier 314a, reflecting off the duplexer 611, and passing through the second A half of the difference between the phase shifts introduced by the forward propagation of amplifier 314a is phase shifted. Generally, the first phase shifting unit 624a may be configured to phase shift the signal passing through the first phase shifting unit 624a such that the original signal and the reflected signal have a phase difference that is an integer multiple of 360 degrees (including zero).

相移部件624a-624b可实施为无源电路。特别地，相移部件624a-624b可实施为LC电路，并且包括诸如电感器和/或电容器之类的一个或多个无源部件。无源部件可以并联和/或串联地连接，并且可以连接在放大器314a-314b的输出与信号组合器612的输入之间，或可以连接在放大器314a-314b的输出与地电压之间。在一些实施方式中，相移部件624a-624b集成到与放大器314a-314b相同的晶片(die)中或者集成到相同封装上。Phase shifting components 624a-624b may be implemented as passive circuits. In particular, phase shifting components 624a-624b may be implemented as LC circuits and include one or more passive components such as inductors and/or capacitors. The passive components may be connected in parallel and/or in series, and may be connected between the output of the amplifiers 314a-314b and the input of the signal combiner 612, or may be connected between the output of the amplifiers 314a-314b and a ground voltage. In some implementations, the phase shifting components 624a-624b are integrated into the same die or onto the same package as the amplifiers 314a-314b.

在(例如，如图6A所示的)一些实施方式中，相移部件624a-624b沿所述路径设置在放大器314a-314b之后。因此，由相移部件624a-624b导致的任何信号衰减不影响模块610的性能，例如输出信号的信噪比。然而，在一些实施方式中，相移部件624a-624b沿所述路径设置在放大器314a-314b之前。例如，相移部件624a-624b可集成到在双工器611与放大器314a-314b之间设置的阻抗匹配部件中。In some implementations (eg, as shown in FIG. 6A ), phase shifting components 624a-624b are disposed after amplifiers 314a-314b along the path. Therefore, any signal attenuation caused by the phase shifting elements 624a-624b does not affect the performance of the module 610, such as the signal-to-noise ratio of the output signal. However, in some implementations, the phase shifting components 624a-624b are placed before the amplifiers 314a-314b along the path. For example, phase shifting components 624a-624b may be integrated into impedance matching components provided between duplexer 611 and amplifiers 314a-314b.

图6B示出了在一些实施例中，分集接收机配置640可以包括DRx模块641，DRx模块641具有一个或多个相位匹配部件624a-624b和两级放大器614a-614b。图6B的DRx模块641与图6A的DRx模块610基本类似，只是图6A的DRx模块610的放大器314a-314b被图6B的DRx模块641中的两级放大器614a-614b取代。Figure 6B shows that in some embodiments, a diversity receiver configuration 640 may include a DRx module 641 having one or more phase matching components 624a-624b and two stages of amplifiers 614a-614b. The DRx module 641 of FIG. 6B is basically similar to the DRx module 610 of FIG. 6A, except that the amplifiers 314a-314b of the DRx module 610 of FIG. 6A are replaced by the two-stage amplifiers 614a-614b of the DRx module 641 of FIG. 6B.

图6C示出了在一些实施例中，分集接收机配置680可以包括DRx模块681，DRx模块681具有一个或多个相位匹配部件624a-624b和组合器后放大器615。图6C的DRx模块681与图6A的DRx模块610基本类似，只是图6C的DRx模块681包括设置在信号组合器612的输出与DRx模块681的输出之间的组合器后放大器615。类似于放大器314a-314b，组合器后放大器615可以是由DRx控制器(未示出)控制的可变增益放大器(VGA)和/或可变电流放大器。FIG. 6C shows that in some embodiments, a diversity receiver configuration 680 may include a DRx module 681 having one or more phase matching components 624a-624b and a post-combiner amplifier 615. The DRx module 681 of FIG. 6C is substantially similar to the DRx module 610 of FIG. 6A , except that the DRx module 681 of FIG. 6C includes a post-combiner amplifier 615 disposed between the output of the signal combiner 612 and the output of the DRx module 681 . Similar to amplifiers 314a-314b, post-combiner amplifier 615 may be a variable gain amplifier (VGA) and/or a variable current amplifier controlled by a DRx controller (not shown).

图7示出了在一些实施例中，分集接收机配置700可以包括DRx模块710，DRx模块710具有可调相移部件724a-724d。可调相移部件724a-724d中的每个可配置为将传递通过可调相移部件的信号相移一个量，该量由从DRx控制器702接收到的相移调谐信号控制。Figure 7 shows that in some embodiments, a diversity receiver configuration 700 may include a DRx module 710 having adjustable phase shift components 724a-724d. Each of the adjustable phase shift elements 724 a - 724 d may be configured to phase shift the signal passing through the adjustable phase shift elements by an amount controlled by a phase shift tuning signal received from the DRx controller 702 .

分集接收机配置700包括DRx模块710，其具有耦接到天线140的输入和耦接到传输线路135的输出。DRx模块710包括在DRx模块710的输入和输出之间的多个路径。在一些实施方式中，DRx模块710包括在输入和输出之间的、由被DRx控制器702控制的一个或多个旁路开关激活的一个或多个旁路路径(未示出)。Diversity receiver configuration 700 includes DRx module 710 having an input coupled to antenna 140 and an output coupled to transmission line 135 . The DRx module 710 includes multiple paths between the input and the output of the DRx module 710 . In some embodiments, the DRx module 710 includes one or more bypass paths (not shown) between the input and the output that are activated by one or more bypass switches controlled by the DRx controller 702 .

DRx模块710包括多个复用器路径，其包括输入复用器311和输出复用器312。复用器路径包括多个模块上路径(如图所示)，其包括输入复用器311、带通滤波器313a-313d、放大器314a-314d、可调相移部件724a-724d、输出复用器312、以及组合器后放大器615。复用器路径可包括一个或多个模块外路径(未示出)，如上所述。同样如上所述，放大器314a-314d(包括后增益放大器615)可以是可变增益放大器和/或可变电流放大器。DRx module 710 includes multiple multiplexer paths including input multiplexer 311 and output multiplexer 312 . The multiplexer path includes multiple on-module paths (as shown), which include input multiplexer 311, bandpass filters 313a-313d, amplifiers 314a-314d, adjustable phase shift elements 724a-724d, output multiplexer 312, and post-combiner amplifier 615. The multiplexer paths may include one or more off-module paths (not shown), as described above. Also as noted above, amplifiers 314a-314d (including post-gain amplifier 615) may be variable gain amplifiers and/or variable current amplifiers.

可调相移部件724a-724d可包括一个或多个可变部件，诸如电感器和电容器。可变部件可以并联和/或串联地连接，并且可以连接在放大器314a-314d的输出与输出复用器312的输入之间，或可以连接在放大器314a-314d的输出与地电压之间。The adjustable phase shift components 724a-724d may include one or more variable components, such as inductors and capacitors. The variable components may be connected in parallel and/or in series, and may be connected between the output of amplifiers 314a-314d and the input of output multiplexer 312, or may be connected between the output of amplifiers 314a-314d and a ground voltage.

DRx控制器702配置为选择性地激活输入和输出之间的多个路径中的一个或多个。在一些实施方式中，DRx控制器702配置为基于DRx控制器702(例如，从通信控制器)所接收到的频带选择信号来选择性地激活多个路径中的一个或多个路径。DRx控制器702可以通过例如使能或禁止放大器314a-314d，控制复用器311、312，或者通过如上所述的其它机制，来选择性地激活路径。The DRx controller 702 is configured to selectively activate one or more of the plurality of paths between the input and the output. In some embodiments, the DRx controller 702 is configured to selectively activate one or more of the plurality of paths based on a band select signal received by the DRx controller 702 (eg, from a communications controller). The DRx controller 702 may selectively activate paths by, for example, enabling or disabling amplifiers 314a-314d, controlling multiplexers 311, 312, or through other mechanisms as described above.

在一些实施方式中，DRx控制器702配置为对可调相移部件724a-724d进行调谐。在一些实施方式中，DRx控制器702基于频带选择信号来对可调相移部件724a-724d进行调谐。例如，DRx控制器702可基于查找表来对可调相移部件724a-724d进行调谐，该查找表将由频带选择信号指示的频率带(或频率带组)与调谐参数相关联。因此，响应于频带选择信号，DRx控制器702可将相移调谐信号发送到每个激活路径的可调相移部件724a-724d，以根据调谐参数来对可调相移部件(或其可变部件)进行调谐。In some implementations, the DRx controller 702 is configured to tune the adjustable phase shift components 724a-724d. In some implementations, the DRx controller 702 tunes the adjustable phase shift components 724a-724d based on the band select signal. For example, DRx controller 702 may tune adjustable phase shift components 724a-724d based on a lookup table that associates a frequency band (or group of frequency bands) indicated by the band select signal with tuning parameters. Accordingly, in response to the band select signal, the DRx controller 702 may send a phase shift tuning signal to the adjustable phase shift elements 724a-724d of each active path to adjust the adjustable phase shift elements (or their variable phase shift elements) according to the tuning parameters. parts) for tuning.

DRx控制器702可配置为对可调相移部件724a-724d进行调谐，使得带外反射信号在输出复用器312处与带外初始信号同相。例如，如果频带选择信号指示与第一频率带对应的(通过第一放大器314a的)第一路径、与第二频率带对应的(通过第二放大器314b的)第二路径、和(通过第三放大器314c的)第三路径要被激活，则DRx控制器702可对第一可调相移部件724a进行调谐，使得(1)针对(第二频率带处的)沿第二路径传播的信号，初始信号与沿第一路径反向传播，反射离开带通滤波器313a并且通过第一路径正向传播的反射信号同相，以及(2)针对(第三频率带处的)沿第三路径传播的信号，初始信号与沿第一路径反向传播，反射离开带通滤波器313a并且通过第一路径正向传播的反射信号同相。DRx controller 702 may be configured to tune adjustable phase shift elements 724a - 724d such that the out-of-band reflected signal is in phase with the out-of-band original signal at output multiplexer 312 . For example, if the band select signal indicates a first path (through the first amplifier 314a) corresponding to the first frequency band, a second path (through the second amplifier 314b) corresponding to the second frequency band, and a second path (through the third amplifier 314b) corresponding to the second frequency band If the third path of the amplifier 314c is to be activated, the DRx controller 702 may tune the first adjustable phase shift component 724a such that (1) for a signal (at a second frequency band) propagating along the second path, The initial signal is in phase with the reflected signal backpropagating along the first path, reflected off the bandpass filter 313a and forward propagating through the first path, and (2) for the signal (at the third frequency band) propagating along the third path The signal, the initial signal, is in phase with the reflected signal that backpropagates along the first path, reflects off the bandpass filter 313a and forward propagates through the first path.

DRx控制器702可对第一可调相移部件724a进行调谐，使得第二频率带的相移量不同于第三频率带。例如，如果由于通过第一放大器314a的反向传播、反射离开带通滤波器313a、和通过第一放大器314a的正向传播，第二频率带处的信号被相移了140度并且第三频率带处的信号被相移了130度，则DRx控制器702可对第一可调相移部件724a进行调谐，以将第二频率带相移-70度(或110度)并且将第三频率带相移-65度(或115度)。The DRx controller 702 can tune the first adjustable phase shift component 724a such that the amount of phase shift for the second frequency band is different than the third frequency band. For example, if the signal at the second frequency band is phase shifted by 140 degrees and the third frequency The signal at the band is phase shifted by 130 degrees, then the DRx controller 702 can tune the first adjustable phase shift component 724a to phase shift the second frequency band by -70 degrees (or 110 degrees) and shift the third frequency With phase shift -65 degrees (or 115 degrees).

DRx控制器702可类似地对第二可调相移部件724b和第三可调相移部件724c进行调谐。The DRx controller 702 may similarly tune the second adjustable phase shift component 724b and the third adjustable phase shift component 724c.

作为另一示例，如果频带选择信号指示第一路径、第二路径、和(通过第四放大器314d的)第四路径要被激活，则DRx控制器702可对第一可调相移部件724a进行调谐，使得(1)针对(第二频率带处的)沿第二路径传播的信号，初始信号与沿第一路径反向传播，反射离开带通滤波器313a并且通过第一路径正向传播的反射信号同相，以及(2)针对(第四频率带处的)沿第四路径传播的信号，初始信号与沿第一路径反向传播，反射离开带通滤波器313a并且通过第一路径正向传播的反射信号同相。As another example, if the band select signal indicates that the first path, the second path, and the fourth path (through the fourth amplifier 314d) are to be activated, then the DRx controller 702 may perform Tuned so that (1) for a signal (at a second frequency band) propagating along the second path, the initial signal counterpropagates along the first path, reflects off the bandpass filter 313a and forward propagates through the first path The reflected signal is in phase, and (2) for the signal (at the fourth frequency band) propagating along the fourth path, the original signal is counter-propagated from the first path, reflected off the bandpass filter 313a and forward through the first path The propagated reflected signal is in phase.

DRx控制器702可将可调相移部件724a-724d的可变部件调谐为具有用于不同频率带组的不同值。The DRx controller 702 can tune the variable components of the adjustable phase shift components 724a-724d to have different values for different sets of frequency bands.

在一些实施方式中，可调相移部件724a-724d利用DRx控制器702不可调谐或控制的固定相移部件来取代。沿多个路径中的与一个频率带对应的对应一个路径设置的各相移部件中的每个相移部件可配置为对其它频率带中的每个进行相移，使得沿对应的其它路径的初始信号与沿所述路径之一反向传播，反射离开对应的带通滤波器并且通过所述路径之一正向传播的反射信号同相。In some implementations, the adjustable phase shift components 724a-724d are replaced with fixed phase shift components that are not tunable or controllable by the DRx controller 702. Each of the phase shifting elements disposed along a corresponding one of the plurality of paths corresponding to a frequency band may be configured to phase shift each of the other frequency bands such that The original signal is in phase with the reflected signal backpropagating along one of the paths, reflected off the corresponding bandpass filter and forward propagating through one of the paths.

例如，第三相移部件724c可以是固定的并且被配置为(1)对第一频率带进行相移，使得(沿第一路径传播的)第一频率带的初始信号与沿第三路径反向传播，反射离开第三带通滤波器313c并且通过第三路径正向传播的反射信号同相，(2)对第二频率带进行相移，使得(沿第二路径传播的)第二频率带的初始信号与沿第三路径反向传播，反射离开第三带通滤波器313c并且通过第三路径正向传播的反射信号同相，以及(3)对第四频率带进行相移，使得(沿第四路径传播的)第四频率带的初始信号与沿第三路径反向传播，反射离开第三带通滤波器313c并且通过第三路径正向传播的反射信号同相。其它相移部件可以类似地是固定的并且进行配置。For example, the third phase shifting component 724c may be fixed and configured to (1) phase shift the first frequency band such that the initial signal (propagating along the first path) of the first frequency band is opposite to the signal along the third path. (2) phase-shift the second frequency band so that the second frequency band (propagating along the second path) The initial signal of is in phase with the reflected signal that backpropagates along the third path, reflects off the third bandpass filter 313c and forward propagates through the third path, and (3) phase shifts the fourth frequency band such that (along The initial signal of the fourth frequency band propagated by the fourth path is in phase with the reflected signal which backpropagates along the third path, reflects off the third bandpass filter 313c and forward propagates through the third path. Other phase shifting components may be fixed and configured similarly.

因此，DRx模块710包括DRx控制器702，配置为选择性地激活DRx模块710的输入与DRx模块710的输出之间的多个路径中的一个或多个。DRx模块710还包括多个放大器314a-314d，多个放大器314a-314d中的每个放大器沿多个路径中的对应一个路径设置并且配置为对在放大器处接收到的信号进行放大。DRx模块还包括多个相移部件724a-724d，多个相移部件724a-724d中的每个相移部件沿多个路径中的对应一个路径设置并且配置为对传递通过相移部件的信号进行相移。Accordingly, the DRx module 710 includes a DRx controller 702 configured to selectively activate one or more of a plurality of paths between an input of the DRx module 710 and an output of the DRx module 710 . The DRx module 710 also includes a plurality of amplifiers 314a-314d, each amplifier of the plurality of amplifiers 314a-314d disposed along a corresponding one of the plurality of paths and configured to amplify a signal received at the amplifier. The DRx module also includes a plurality of phase shifting elements 724a-724d, each of the plurality of phase shifting elements 724a-724d being disposed along a corresponding one of the plurality of paths and configured to perform an operation on a signal passing through the phase shifting element. phase shift.

在一些实施方式中，第一相移部件724a沿与第一频率带(例如，第一带通滤波器313a的频率带)对应的第一路径设置，并且配置为对传递通过第一相移部件724a的信号的第二频率带(例如，第二带通滤波器313b的频率带)进行相移，使得沿与第二频率带对应的第二路径传播的初始信号与沿第一路径传播的反射信号至少部分地同相。In some embodiments, the first phase shifting element 724a is disposed along a first path corresponding to a first frequency band (eg, the frequency band of the first bandpass filter 313a), and is configured to pass through the first phase shifting element The second frequency band (e.g., the frequency band of the second bandpass filter 313b) of the signal at 724a is phase-shifted such that the original signal propagating along the second path corresponding to the second frequency band differs from the reflected signal propagating along the first path The signals are at least partially in phase.

在一些实施方式中，第一相移部件724a还配置为对传递通过第一相移部件724a的信号的第三频率带(例如，第三带通滤波器313c的频率带)进行相移，使得沿与第三频率带对应的第三路径传播的初始信号与沿第一路径传播的反射信号至少部分地同相。In some embodiments, the first phase shifting component 724a is further configured to phase shift a third frequency band (eg, the frequency band of the third bandpass filter 313c) of the signal passing through the first phase shifting component 724a, such that The original signal propagating along a third path corresponding to the third frequency band is at least partially in phase with the reflected signal propagating along the first path.

类似地，在一些实施方式中，沿第二路径设置的第二相移部件724b配置为对传递通过第二相移部件724b的信号的第一频率带进行相移，使得沿第一路径传播的初始信号与沿第二路径传播的反射信号至少部分地同相。Similarly, in some embodiments, the second phase shifting element 724b disposed along the second path is configured to phase shift the first frequency band of the signal passing through the second phase shifting element 724b such that The original signal is at least partially in phase with the reflected signal propagating along the second path.

图8示出了在一些实施例中，分集接收机配置800可以包括DRx模块810，DRx模块810具有一个或多个阻抗匹配部件834a-834b。DRx模块810包括从DRx模块810的耦接到天线140的输入到Rx模块810的耦接到传输线路135的输出的两个路径。Figure 8 shows that in some embodiments, a diversity receiver configuration 800 may include a DRx module 810 having one or more impedance matching components 834a-834b. The DRx module 810 includes two paths from the input of the DRx module 810 coupled to the antenna 140 to the output of the Rx module 810 coupled to the transmission line 135 .

在图8的DRx模块810中(如在图6A的DRx模块610中那样)，信号分离器和带通滤波器实施为双工器611。双工器611包括耦接到天线的输入、耦接到第一阻抗匹配部件834a的第一输出、和耦接到第二阻抗匹配部件834b的第二输出。在第一输出处，双工器611输出在输入处(例如，从天线140)接收到的、滤波到第一频率带的信号。在第二输出处，双工器611输出在输入处接收到的、滤波到第二频率带的信号。In the DRx module 810 of FIG. 8 (as in the DRx module 610 of FIG. 6A ), the demultiplexer and bandpass filter are implemented as duplexers 611 . The duplexer 611 includes an input coupled to the antenna, a first output coupled to the first impedance matching part 834a, and a second output coupled to the second impedance matching part 834b. At a first output, duplexer 611 outputs the signal received at the input (eg, from antenna 140 ) filtered to a first frequency band. At the second output, the diplexer 611 outputs the signal received at the input filtered to the second frequency band.

每个阻抗匹配部件834a-834b设置在双工器611与放大器314a-314b之间。如上所述，放大器314a-314b中的每一个沿各路径中的对应一个路径设置，并且配置为放大在放大器处接收到的信号。放大器314a-314b的输出馈送到信号组合器612。Each impedance matching component 834a-834b is disposed between the duplexer 611 and the amplifier 314a-314b. As described above, each of the amplifiers 314a-314b is disposed along a corresponding one of the paths and is configured to amplify a signal received at the amplifier. The outputs of the amplifiers 314a-314b are fed to a signal combiner 612.

信号组合器612包括耦接到第一放大器314a的第一输入、耦接到第二放大器314b的第二输入、和耦接到DRx模块610的输出的输出。信号组合器的输出处的信号是第一输入和第二输入处的信号之和。Signal combiner 612 includes a first input coupled to first amplifier 314 a , a second input coupled to second amplifier 314 b , and an output coupled to the output of DRx module 610 . The signal at the output of the signal combiner is the sum of the signals at the first input and the second input.

当天线140接收到信号时，该信号被双工器611滤波到第一频率带，并且通过第一放大器314a沿第一路径传播。类似地，该信号被双工器611滤波到第二频率带，并且通过第二放大器314b沿第二路径传播。When the antenna 140 receives a signal, the signal is filtered to the first frequency band by the duplexer 611 and propagated along the first path through the first amplifier 314a. Similarly, the signal is filtered by duplexer 611 to a second frequency band and propagated along a second path by second amplifier 314b.

每个路径可通过噪声系数和增益来表征。每个路径的噪声系数是由沿路径设置的放大器和阻抗匹配部件所导致的信噪比(SNR)的劣化的表示。特别地，每个路径的噪声系数是阻抗匹配部件834a-834b的输入处的SNR与放大器314a-314b的输出处的SNR之间的分贝(dB)差。因而，噪声系数是放大器的噪声输出与具有相同增益的“理想”放大器(其不产生噪声)的噪声输出之差的量度(measure)。类似地，每个路径的增益是由沿路径设置的放大器和阻抗匹配部件所导致的增益的表示。Each path can be characterized by noise figure and gain. The noise figure of each path is indicative of the degradation in signal-to-noise ratio (SNR) caused by the amplifiers and impedance matching components placed along the path. In particular, the noise figure for each path is the difference in decibels (dB) between the SNR at the input of the impedance matching components 834a-834b and the SNR at the output of the amplifiers 314a-314b. Thus, noise figure is a measure of the difference between the noise output of an amplifier and that of an "ideal" amplifier (which produces no noise) with the same gain. Similarly, the gain of each path is representative of the gain caused by the amplifiers and impedance matching components placed along the path.

每个路径的噪声系数和增益对于不同的频率带可以是不同的。例如，第一路径可以具有用于第一频率带的带内噪声系数和带内增益、以及用于第二频率带的带外噪声系数和带外增益。类似地，第二路径可以具有用于第二频率带的带内噪声系数和带内增益、以及用于第一频率带的带外噪声系数和带外增益。The noise figure and gain of each path may be different for different frequency bands. For example, a first path may have an in-band noise figure and in-band gain for a first frequency band, and an out-of-band noise figure and out-of-band gain for a second frequency band. Similarly, the second path may have an in-band noise figure and in-band gain for the second frequency band, and an out-of-band noise figure and out-of-band gain for the first frequency band.

DRx模块810也可以通过对于不同频率带可以不同的噪声系数和增益来表征。特别地，DRx模块810的噪声系数是DRx模块810的输入处的SNR与DRx模块810的输出处的SNR之间的dB差。The DRx module 810 may also be characterized by different noise figures and gains for different frequency bands. In particular, the noise figure of the DRx module 810 is the difference in dB between the SNR at the input of the DRx module 810 and the SNR at the output of the DRx module 810 .

(每个频率带处的)每个路径的噪声系数和增益可以至少部分地取决于阻抗匹配部件834a-834b的(每个频率带处的)阻抗。因此，会有利的是，阻抗匹配部件834a-834b的阻抗使得每个路径的带内噪声系数最小化和/或使得每个路径的带内增益最大化。因此，在一些实施方式中，每个阻抗匹配部件834a-834b配置为(与缺少这种阻抗匹配部件834a-834b的DRx模块相比)减小其相应路径的带内噪声系数和/或增大其相应路径的带内增益。The noise figure and gain (at each frequency band) of each path may depend, at least in part, on the impedance (at each frequency band) of the impedance matching components 834a-834b. Accordingly, it may be advantageous for the impedance of the impedance matching components 834a-834b to minimize the in-band noise figure of each path and/or maximize the in-band gain of each path. Accordingly, in some embodiments, each impedance matching component 834a-834b is configured to reduce the in-band noise figure of its corresponding path (compared to a DRx module lacking such an impedance matching component 834a-834b) and/or increase The in-band gain of its corresponding path.

因为沿两个路径传播的信号被信号组合器612组合，所以放大器所产生或放大的带外噪声会对组合信号产生负面影响。例如，第一放大器314a所产生或放大的带外噪声会增大DRx模块810的在第二频率处的噪声系数。因此，会有利的是，阻抗匹配部件834a-834b的阻抗使得每个路径的带外噪声系数最小化和/或使得每个路径的带外增益最小化。因此，在一些实施方式中，每个阻抗匹配部件834a-834b配置为(与缺少这种阻抗匹配部件834a-834b的DRx模块相比)减小其相应路径的带外噪声系数和/或减小其相应路径的带外增益。Because the signals propagating along the two paths are combined by the signal combiner 612, out-of-band noise generated or amplified by the amplifier can negatively affect the combined signal. For example, out-of-band noise generated or amplified by the first amplifier 314a may increase the noise figure of the DRx module 810 at the second frequency. Accordingly, it may be advantageous for the impedance of the impedance matching components 834a-834b to minimize the out-of-band noise figure of each path and/or to minimize the out-of-band gain of each path. Accordingly, in some embodiments, each impedance matching component 834a-834b is configured to reduce the out-of-band noise figure of its corresponding path (compared to a DRx module lacking such an impedance matching component 834a-834b) and/or reduce The out-of-band gain of its corresponding path.

阻抗匹配部件834a-834b可实施为无源电路。特别地，阻抗匹配部件834a-834b可实施为RLC电路，并且包括诸如电阻器、电感器和/或电容器之类的一个或多个无源部件。无源部件可以并联和/或串联地连接，并且可以连接在双工器611的输出与放大器314a-314b的输入之间，或可以连接在双工器611的输出与地电压之间。在一些实施方式中，阻抗匹配部件834a-834b集成到与放大器314a-314b相同的晶片中或者相同的封装上。Impedance matching components 834a-834b may be implemented as passive circuits. In particular, impedance matching components 834a-834b may be implemented as RLC circuits and include one or more passive components such as resistors, inductors, and/or capacitors. The passive components may be connected in parallel and/or in series, and may be connected between the output of duplexer 611 and the inputs of amplifiers 314a-314b, or between the output of duplexer 611 and a ground voltage. In some implementations, the impedance matching components 834a-834b are integrated into the same die or on the same package as the amplifiers 314a-314b.

如上所述，对于特定路径会有利的是，阻抗匹配部件834a-834b的阻抗使得带内噪声系数最小化，带内增益最大化，带外噪声系数最小化，和带外增益最小化。以仅仅两种自由度(例如，第一频率带处的阻抗和第二频率带处的阻抗)或其它各种约束(例如，部件数量、成本、晶片空间)来设计用于实现全部这四个目标的阻抗匹配部件834a-834b可能是有挑战的。因此，在一些实施方式中，使带内噪声系数减带内增益的带内度量最小化，并且使带外噪声系数加带外增益的带外度量最小化。以各种约束来设计用于实现全部这两个目标的阻抗匹配部件834a-834b可能仍然是有挑战的。因此，在一些实施方式中，依据一组约束来使带内度量最小化，并且依据该组约束和使带内度量增大不多于一阈值量(例如，0.1dB、0.2dB、0.5dB或任何其它值)的附加约束来使带外度量最小化。因此，阻抗匹配部件配置为将带内噪声系数减带内增益的带内度量减小到带内度量最小值(例如，依据任何约束的最小可能带内度量)的一阈值量以内。阻抗匹配部件还配置为将带外噪声系数加带外增益的带外度量减小到带内约束带外度量(in-band-constrainedout-of-bandmetric)最小值，例如，依据使带内度量增大不多于一阈值量的附加约束的最小可能带外度量。在一些实施方式中，依据任何约束来使(由带内因子加权的)带内度量加(由带外因子加权的)带外度量的复合度量(compositemetric)最小化。As noted above, it may be advantageous for a particular path that the impedance of the impedance matching components 834a-834b minimize in-band noise figure, maximize in-band gain, minimize out-of-band noise figure, and minimize out-of-band gain. Designing to achieve all four of these Targeting impedance matching components 834a-834b can be challenging. Thus, in some embodiments, the in-band measure of in-band noise figure minus in-band gain is minimized, and the out-of-band measure of out-of-band noise figure plus out-of-band gain is minimized. It may still be challenging to design impedance matching components 834a-834b to achieve both of these goals with various constraints. Thus, in some embodiments, the in-band metric is minimized subject to a set of constraints, and subject to the set of constraints and the in-band metric is increased by no more than a threshold amount (e.g., 0.1 dB, 0.2 dB, 0.5 dB, or any other value) to minimize the out-of-band metric. Accordingly, the impedance matching component is configured to reduce an in-band metric of in-band noise figure minus in-band gain to within a threshold amount of an in-band metric minimum (eg, the smallest possible in-band metric subject to any constraints). The impedance matching component is also configured to reduce the out-of-band metric of the out-of-band noise figure plus the out-of-band gain to an in-band-constrained out-of-band metric (in-band-constrained out-of-band metric) minimum value, e.g., according to increasing the in-band metric The smallest possible out-of-band metric for additional constraints that is no more than a threshold amount. In some embodiments, the composite metric of the in-band metric (weighted by the in-band factor) plus the out-of-band metric (weighted by the out-of-band factor) is minimized subject to any constraints.

因此，在一些实施方式中，每个阻抗匹配部件834a-834b配置为(例如，通过减小带内噪声系数、增大带内增益、或两者来)减小其相应路径的带内度量(带内噪声系数减带内增益)。在一些实施方式中，每个阻抗匹配部件834a-834b还配置为(例如，通过减小带外噪声系数、减小带外增益、或两者来)减小其相应路径的带外度量(带外噪声系数加带外增益)。Thus, in some implementations, each impedance matching component 834a-834b is configured to reduce the in-band metric of its corresponding path (eg, by reducing in-band noise figure, increasing in-band gain, or both) in-band noise figure minus in-band gain). In some implementations, each impedance matching component 834a-834b is also configured to reduce the out-of-band metric (band outside noise figure plus out-of-band gain).

在一些实施方式中，通过减小带外度量，阻抗匹配部件834a-834b减小DRx模块810的一个或多个频率带处的噪声系数，而没有实质性增大其它频率带处的噪声系数。In some implementations, by reducing the out-of-band metric, the impedance matching components 834a-834b reduce the noise figure at one or more frequency bands of the DRx module 810 without substantially increasing the noise figure at other frequency bands.

图9示出了在一些实施例中，分集接收机配置900可以包括DRx模块910，DRx模块910具有可调阻抗匹配部件934a-934d。每个可调阻抗匹配部件934a-934d可配置为呈现通过从DRx控制器902接收到的阻抗调谐信号来控制的阻抗。Figure 9 shows that in some embodiments, a diversity receiver configuration 900 may include a DRx module 910 having adjustable impedance matching components 934a-934d. Each adjustable impedance matching component 934 a - 934 d may be configured to exhibit an impedance controlled by an impedance tuning signal received from the DRx controller 902 .

分集接收机配置900包括DRx模块910，其具有耦接到天线140的输入和耦接到传输线路135的输出。DRx模块910包括在DRx模块910的输入和输出之间的多个路径。在一些实施方式中，DRx模块910包括在输入和输出之间的、由被DRx控制器902控制的一个或多个旁路开关激活的一个或多个旁路路径(未示出)。Diversity receiver configuration 900 includes DRx module 910 having an input coupled to antenna 140 and an output coupled to transmission line 135 . The DRx module 910 includes multiple paths between the input and the output of the DRx module 910 . In some embodiments, the DRx module 910 includes one or more bypass paths (not shown) between the input and the output that are activated by one or more bypass switches controlled by the DRx controller 902 .

DRx模块910包括多个复用器路径，其包括输入复用器311和输出复用器312。复用器路径包括多个模块上路径(如图所示)，其包括输入复用器311、带通滤波器313a-313d、可调阻抗匹配部件934a-934d、放大器314a-314d、以及输出复用器312。复用器路径也可包括一个或多个模块外路径(未示出)，如上所述。同样如上所述，放大器314a-314d可以是可变增益放大器和/或可变电流放大器。DRx module 910 includes multiple multiplexer paths including input multiplexer 311 and output multiplexer 312 . The multiplexer path includes multiple on-module paths (as shown) that include input multiplexer 311, bandpass filters 313a-313d, adjustable impedance matching components 934a-934d, amplifiers 314a-314d, and output multiplexer Use device 312. The multiplexer paths may also include one or more off-module paths (not shown), as described above. Also as described above, the amplifiers 314a-314d may be variable gain amplifiers and/or variable current amplifiers.

可调阻抗匹配部件934a-934d可以是可调T电路、可调PI电路、或任何其它可调匹配电路。可调阻抗匹配部件934a-934d可包括一个或多个可变部件，诸如电阻器、电感器和电容器。可变部件可以并联和/或串联地连接，并且可以连接在输入复用器311的输出与放大器314a-314b的输入之间，或可以连接在输入复用器311的输出与地电压之间。The adjustable impedance matching components 934a-934d may be adjustable T circuits, adjustable PI circuits, or any other adjustable matching circuits. The adjustable impedance matching components 934a-934d may include one or more variable components such as resistors, inductors and capacitors. The variable components may be connected in parallel and/or in series, and may be connected between the output of input multiplexer 311 and the inputs of amplifiers 314a-314b, or between the output of input multiplexer 311 and ground voltage.

DRx控制器902配置为选择性地激活输入和输出之间的多个路径中的一个或多个。在一些实施方式中，DRx控制器902配置为基于DRx控制器902(例如，从通信控制器)所接收到的频带选择信号来选择性地激活多个路径中的一个或多个路径。DRx控制器902可以通过例如使能或禁止放大器314a-314d，控制复用器311、312，或者通过如上所述的其它机制，来选择性地激活路径。The DRx controller 902 is configured to selectively activate one or more of the plurality of paths between the input and the output. In some embodiments, the DRx controller 902 is configured to selectively activate one or more of the plurality of paths based on a band select signal received by the DRx controller 902 (eg, from a communications controller). The DRx controller 902 may selectively activate paths by, for example, enabling or disabling amplifiers 314a-314d, controlling multiplexers 311, 312, or through other mechanisms as described above.

在一些实施方式中，DRx控制器902配置为对可调阻抗匹配部件934a-934d进行调谐。在一些实施方式中，DRx控制器902基于频带选择信号来对可调阻抗匹配部件934a-934d进行调谐。例如，DRx控制器902可基于查找表来对可调阻抗匹配部件934a-934d进行调谐，该查找表将由频带选择信号指示的频率带(或频率带组)与调谐参数相关联。因此，响应于频带选择信号，DRx控制器902可将阻抗调谐信号发送到每个激活路径的可调阻抗匹配部件934a-934d，以根据调谐参数来对可调阻抗匹配部件(或其可变部件)进行调谐。In some implementations, the DRx controller 902 is configured to tune the adjustable impedance matching components 934a-934d. In some implementations, the DRx controller 902 tunes the adjustable impedance matching components 934a-934d based on the band select signal. For example, DRx controller 902 may tune adjustable impedance matching components 934a-934d based on a lookup table that associates a frequency band (or group of frequency bands) indicated by the band select signal with tuning parameters. Accordingly, in response to the band select signal, the DRx controller 902 may send an impedance tuning signal to each active path's adjustable impedance matching components 934a-934d to tune the adjustable impedance matching components (or variable components thereof) according to the tuning parameters. ) to tune.

在一些实施方式中，DRx控制器902至少部分地基于被发送以用于控制放大器314a-314d的增益和/或电流的放大器控制信号来对可调阻抗匹配部件934a-934d进行调谐。In some implementations, the DRx controller 902 tunes the adjustable impedance matching components 934a-934d based at least in part on amplifier control signals sent to control the gain and/or current of the amplifiers 314a-314d.

在一些实施方式中，DRx控制器902配置为对每个激活路径的可调阻抗匹配部件934a-934d进行调谐，使得带内噪声系数最小化(或减小)，带内增益最大化(或增大)，每个其它激活路径的带外噪声系数最小化(或减小)，和/或每个其它激活路径的带外增益最小化(或减小)。In some implementations, the DRx controller 902 is configured to tune the adjustable impedance matching components 934a-934d of each active path such that the in-band noise figure is minimized (or reduced) and the in-band gain is maximized (or increased). large), the out-of-band noise figure of each other active path is minimized (or reduced), and/or the out-of-band gain of each other active path is minimized (or reduced).

在一些实施方式中，DRx控制器902配置为对每个激活路径的可调阻抗匹配部件934a-934d进行调谐，使得带内度量(带内噪声系数减带内增益)最小化(或减小)，并且每个其它激活路径的带外度量(带外噪声系数加带外增益)最小化(或减小)。In some embodiments, the DRx controller 902 is configured to tune the tunable impedance matching components 934a-934d of each active path such that the in-band metric (in-band noise figure minus in-band gain) is minimized (or reduced) , and the out-of-band metric (out-of-band noise figure plus out-of-band gain) is minimized (or reduced) for every other active path.

在一些实施方式中，DRx控制器902配置为对每个激活路径的可调阻抗匹配部件934a-934d进行调谐，使得依据一组约束来使带内度量最小化(或减小)，并且依据该组约束和使带内度量增大不超过一阈值量(例如，0.1dB、0.2dB、0.5dB或任何其它值)的附加约束来使每个其它激活路径的带外度量最小化(或减小)。In some implementations, the DRx controller 902 is configured to tune the tunable impedance matching components 934a-934d of each active path such that the in-band metric is minimized (or reduced) subject to a set of constraints, and according to the Minimize (or reduce) the out-of-band metric for each other active path with group constraints and additional constraints that increase the in-band metric by no more than a threshold amount (e.g., 0.1 dB, 0.2 dB, 0.5 dB, or any other value) ).

因此，在一些实施方式中，DRx控制器902配置为对每个激活路径的可调阻抗匹配部件934a-934d进行调谐，使得可调阻抗匹配部件将带内噪声系数减带内增益的带内度量减小到带内度量最小值(例如，依据任何约束的最小可能带内度量)的一阈值量以内。DRx控制器902还可配置为对每个激活路径的可调阻抗匹配部件934a-934d进行调谐，使得可调阻抗匹配部件将带外噪声系数加带外增益的带外度量减小到带内约束带外度量最小值(例如，依据使带内度量增大不超过一阈值量的附加约束的最小可能带外度量)。Accordingly, in some embodiments, the DRx controller 902 is configured to tune the tunable impedance matching components 934a-934d of each active path such that the tunable impedance matching components subtract the in-band noise figure from the in-band measure of the in-band gain is reduced to within a threshold amount of the in-band metric minimum (eg, the smallest possible in-band metric subject to any constraints). The DRx controller 902 may also be configured to tune the tunable impedance matching components 934a-934d of each active path such that the tunable impedance matching components reduce the out-of-band metric of out-of-band noise figure plus out-of-band gain to the in-band constraints Out-of-band metric minimum (eg, the smallest possible out-of-band metric subject to an additional constraint that increases the in-band metric by no more than a threshold amount).

在一些实施方式中，DRx控制器902配置为对每个激活路径的可调阻抗匹配部件934a-934d进行调谐，使得依据任何约束来使(由带内因子加权的)带内度量加(由每个其它激活路径的带外因子加权的)每个其它激活路径的带外度量的复合度量最小化。In some embodiments, the DRx controller 902 is configured to tune the adjustable impedance matching components 934a-934d of each active path such that the in-band metric (weighted by the in-band factor) is summed (by each weighted by out-of-band factors of other active paths) the composite metric of each other active path's out-of-band metric is minimized.

DRx控制器902可将可调阻抗匹配部件934a-934d的可变部件调谐为具有用于不同频率带组的不同值。The DRx controller 902 can tune the variable components of the adjustable impedance matching components 934a-934d to have different values for different sets of frequency bands.

在一些实施方式中，可调阻抗匹配部件934a-934d利用DRx控制器902不可调谐或控制的固定阻抗匹配部件来取代。各阻抗匹配部件中的沿多个路径中的与一个频率带对应的对应一个路径设置的每个阻抗匹配部件可配置为减小(或最小化)用于所述一个频率带的带内度量和减小(或最小化)用于一个或多个其它频率带(例如，每个其它频率带)的带外度量。In some implementations, the adjustable impedance matching components 934a - 934d are replaced with fixed impedance matching components that are not tunable or controllable by the DRx controller 902 . Each of the impedance matching parts disposed along a corresponding one of the plurality of paths corresponding to a frequency band may be configured to reduce (or minimize) an in-band metric sum for the one frequency band. Out-of-band metrics for one or more other frequency bands (eg, every other frequency band) are reduced (or minimized).

例如，第三阻抗匹配部件934c可以是固定的并且被配置为(1)减小用于第三频率带的带内度量，(2)减小用于第一频率带的带外度量，(3)减小用于第二频率带的带外度量，和/或(4)减小用于第四频率带的带外度量。其它阻抗匹配部件可以类似地是固定的并且进行配置。For example, the third impedance matching component 934c may be fixed and configured to (1) reduce the in-band metric for the third frequency band, (2) reduce the out-of-band metric for the first frequency band, (3 ) reduce the out-of-band metric for the second frequency band, and/or (4) reduce the out-of-band metric for the fourth frequency band. Other impedance matching components may be similarly fixed and configured.

因此，DRx模块910包括DRx控制器902，配置为选择性地激活DRx模块910的输入与DRx模块910的输出之间的多个路径中的一个或多个。DRx模块910还包括多个放大器314a-314d，多个放大器314a-314d中的每个放大器沿多个路径中的对应一个路径设置并且配置为对在放大器处接收到的信号进行放大。DRx模块910还包括多个阻抗匹配部件934a-934d，多个阻抗匹配部件934a-934d中的每个阻抗匹配部件沿多个路径中的对应一个路径设置并且配置为减小多个路径中的所述一个路径的带外噪声系数或带外增益中的至少一个。Accordingly, the DRx module 910 includes a DRx controller 902 configured to selectively activate one or more of a plurality of paths between an input of the DRx module 910 and an output of the DRx module 910 . The DRx module 910 also includes a plurality of amplifiers 314a-314d, each of the plurality of amplifiers 314a-314d disposed along a corresponding one of the plurality of paths and configured to amplify a signal received at the amplifier. The DRx module 910 also includes a plurality of impedance matching components 934a-934d, each of the plurality of impedance matching components 934a-934d being disposed along a corresponding one of the plurality of paths and configured to reduce all of the plurality of paths. at least one of out-of-band noise figure or out-of-band gain for the one path.

在一些实施方式中，第一阻抗匹配部件934a沿与第一频率带(例如，第一带通滤波器313a的频率带)对应的第一路径设置并且配置为减小用于与第二路径对应的第二频率带(例如，第二带通滤波器313b的频率带)的带外噪声系数或带外增益中的至少一个。In some implementations, the first impedance matching component 934a is disposed along a first path corresponding to a first frequency band (eg, the frequency band of the first bandpass filter 313a) and is configured to reduce At least one of out-of-band noise figure or out-of-band gain of the second frequency band (for example, the frequency band of the second bandpass filter 313b) of .

在一些实施方式中，第一阻抗匹配部件934a还配置为减小用于与第三路径对应的第三频率带(例如，第三带通滤波器313c的频率带)的带外噪声系数或带外增益中的至少一个。In some implementations, the first impedance matching component 934a is further configured to reduce the out-of-band noise figure or band at least one of the external gains.

类似地，在一些实施方式中，沿第二路径设置的第二阻抗匹配部件934b配置为减小用于第一频率带的带外噪声系数或带外增益中的至少一个。Similarly, in some embodiments, the second impedance matching component 934b disposed along the second path is configured to reduce at least one of out-of-band noise figure or out-of-band gain for the first frequency band.

图10示出了在一些实施例中，分集接收机配置1000可以包括DRx模块1010，DRx模块1010具有设置在输入和输出处的可调阻抗匹配部件。DRx模块1010可包括一个或多个可调阻抗匹配部件，设置在DRx模块1010的输入和输出中的一个或多个处。特别地，DRx模块1010可包括设置在DRx模块1010的输入处的输入可调阻抗匹配部件1016、设置在DRx模块1010的输出处的输出可调阻抗匹配部件1017、或两者。Figure 10 shows that in some embodiments, a diversity receiver configuration 1000 may include a DRx module 1010 with adjustable impedance matching components disposed at the input and output. The DRx module 1010 may include one or more adjustable impedance matching components disposed at one or more of the input and output of the DRx module 1010 . In particular, the DRx module 1010 may include an input adjustable impedance matching component 1016 disposed at the input of the DRx module 1010, an output adjustable impedance matching component 1017 disposed at the output of the DRx module 1010, or both.

在相同分集天线140上接收到的多个频率带不太可能全部都看到理想的阻抗匹配。为了使用紧凑的匹配电路来匹配每个频率带，可调输入阻抗匹配部件1016可实施在DRx模块1010的输入处并且由DRx控制器1002(例如，基于来自通信控制器的频带选择信号)控制。例如，DRx控制器1002可基于查找表来对可调输入阻抗匹配部件1016进行调谐，该查找表将由频带选择信号指示的频率带(或频率带组)与调谐参数相关联。因此，响应于频带选择信号，DRx控制器1002可将输入阻抗调谐信号发送到可调输入阻抗匹配部件1016，以根据调谐参数来对可调输入阻抗匹配部件(或其可变部件)进行调谐。It is unlikely that multiple frequency bands received on the same diversity antenna 140 will all see perfect impedance matching. To match each frequency band using a compact matching circuit, an adjustable input impedance matching component 1016 may be implemented at the input of the DRx module 1010 and controlled by the DRx controller 1002 (eg, based on a band select signal from the communications controller). For example, the DRx controller 1002 can tune the adjustable input impedance matching component 1016 based on a lookup table that associates a frequency band (or group of frequency bands) indicated by the band select signal with tuning parameters. Accordingly, in response to the band select signal, the DRx controller 1002 may send an input impedance tuning signal to the adjustable input impedance matching component 1016 to tune the adjustable input impedance matching component (or variable components thereof) according to the tuning parameters.

可调输入阻抗匹配部件1016可以是可调T电路、可调PI电路、或任何其它可调匹配电路。特别地，可调输入阻抗匹配部件1016可包括一个或多个可变部件，诸如电阻器、电感器和电容器。可变部件可以并联和/或串联地连接，并且可以连接在DRx模块1010的输入与第一复用器311的输入之间，或可以连接在DRx模块1010的输入与地电压之间。The adjustable input impedance matching component 1016 can be an adjustable T circuit, an adjustable PI circuit, or any other adjustable matching circuit. In particular, adjustable input impedance matching component 1016 may include one or more variable components such as resistors, inductors, and capacitors. The variable components may be connected in parallel and/or in series, and may be connected between the input of the DRx module 1010 and the input of the first multiplexer 311 , or may be connected between the input of the DRx module 1010 and a ground voltage.

类似地，用仅一条传输线路135(或者，至少，少量传输线路)传载许多频率带的信号，不太可能多个频率带全部都看到理想的阻抗匹配。为了使用紧凑的匹配电路来匹配每个频率带，可调输出阻抗匹配部件1017可实施在DRx模块1010的输出处并且由DRx控制器1002(例如，基于来自通信控制器的频带选择信号)控制。例如，DRx控制器1002可基于查找表来对可调输出阻抗匹配部件1017进行调谐，该查找表将由频带选择信号指示的频率带(或频率带组)与调谐参数相关联。因此，响应于频带选择信号，DRx控制器1002可将输出阻抗调谐信号发送到可调输出阻抗匹配部件1017，以根据调谐参数来对可调输出阻抗匹配部件(或其可变部件)进行调谐。Similarly, with only one transmission line 135 (or, at least, a small number of transmission lines) carrying signals for many frequency bands, it is unlikely that the multiple frequency bands will all see perfect impedance matching. To match each frequency band using a compact matching circuit, an adjustable output impedance matching component 1017 may be implemented at the output of the DRx module 1010 and controlled by the DRx controller 1002 (eg, based on a band select signal from the communications controller). For example, the DRx controller 1002 can tune the adjustable output impedance matching component 1017 based on a look-up table that associates a frequency band (or group of frequency bands) indicated by the band select signal with tuning parameters. Accordingly, in response to the band select signal, the DRx controller 1002 may send an output impedance tuning signal to the adjustable output impedance matching component 1017 to tune the adjustable output impedance matching component (or variable components thereof) according to the tuning parameters.

可调输出阻抗匹配部件1017可以是可调T电路、可调PI电路、或任何其它可调匹配电路。特别地，可调输出阻抗匹配部件1017可包括一个或多个可变部件，诸如电阻器、电感器和电容器。可变部件可以并联和/或串联地连接，并且可以连接在第二复用器312的输出与DRx模块1010的输出之间，或可以连接在第二复用器312的输出与地电压之间。The adjustable output impedance matching part 1017 can be an adjustable T circuit, an adjustable PI circuit, or any other adjustable matching circuit. In particular, the adjustable output impedance matching component 1017 may include one or more variable components such as resistors, inductors and capacitors. The variable components may be connected in parallel and/or in series, and may be connected between the output of the second multiplexer 312 and the output of the DRx module 1010, or may be connected between the output of the second multiplexer 312 and a ground voltage .

图11示出了在一些实施例中，分集接收机配置1100可以包括DRx模块1110，DRx模块1110具有多个可调部件。分集接收机配置1100包括DRx模块1110，其具有耦接到天线140的输入和耦接到传输线路135的输出。DRx模块1110包括在DRx模块1110的输入和输出之间的多个路径。在一些实施方式中，DRx模块1110包括在输入和输出之间的、由被DRx控制器1102控制的一个或多个旁路开关激活的一个或多个旁路路径(未示出)。Figure 11 shows that in some embodiments, a diversity receiver configuration 1100 may include a DRx module 1110 having multiple adjustable components. Diversity receiver configuration 1100 includes DRx module 1110 having an input coupled to antenna 140 and an output coupled to transmission line 135 . The DRx module 1110 includes multiple paths between the input and the output of the DRx module 1110 . In some embodiments, the DRx module 1110 includes one or more bypass paths (not shown) between the input and the output that are activated by one or more bypass switches controlled by the DRx controller 1102 .

DRx模块1110包括多个复用器路径，其包括输入复用器311和输出复用器312。复用器路径包括多个模块上路径(如图所示)，其包括可调输入阻抗匹配部件1016、输入复用器311、带通滤波器313a-313d、可调阻抗匹配部件934a-934d、放大器314a-314d、可调相移部件724a-724d、输出复用器312、以及可调输出阻抗匹配部件1017。复用器路径也可包括一个或多个模块外路径(未示出)，如上所述。同样如上所述，放大器314a-314d可以是可变增益放大器和/或可变电流放大器。The DRx module 1110 includes multiple multiplexer paths including an input multiplexer 311 and an output multiplexer 312 . The multiplexer path includes multiple on-module paths (as shown), which include adjustable input impedance matching block 1016, input multiplexer 311, bandpass filters 313a-313d, adjustable impedance matching blocks 934a-934d, Amplifiers 314a-314d, adjustable phase shift components 724a-724d, output multiplexer 312, and adjustable output impedance matching component 1017. The multiplexer paths may also include one or more off-module paths (not shown), as described above. Also as described above, the amplifiers 314a-314d may be variable gain amplifiers and/or variable current amplifiers.

DRx控制器1102配置为选择性地激活输入和输出之间的多个路径中的一个或多个。在一些实施方式中，DRx控制器1102配置为基于DRx控制器1102(例如，从通信控制器)所接收到的频带选择信号来选择性地激活多个路径中的一个或多个路径。DRx控制器902可以通过例如使能或禁止放大器314a-314d，控制复用器311、312，或者通过如上所述的其它机制，来选择性地激活路径。在一些实施方式中，DRx控制器1102配置为发送放大器控制信号到分别沿一个或多个激活路径设置的一个或多个放大器314a-314d。放大器控制信号控制其被发送到的放大器的增益(或电流)。The DRx controller 1102 is configured to selectively activate one or more of the plurality of paths between the input and the output. In some embodiments, the DRx controller 1102 is configured to selectively activate one or more of the plurality of paths based on a band select signal received by the DRx controller 1102 (eg, from a communications controller). The DRx controller 902 may selectively activate paths by, for example, enabling or disabling amplifiers 314a-314d, controlling multiplexers 311, 312, or through other mechanisms as described above. In some implementations, the DRx controller 1102 is configured to send amplifier control signals to one or more amplifiers 314a-314d disposed along one or more active paths, respectively. The amplifier control signal controls the gain (or current) of the amplifier to which it is sent.

DRx控制器1102配置为对以下各部件中的一个或多个进行调谐：可调输入阻抗匹配部件1016、可调阻抗匹配部件934a-934d、可调相移部件724a-724d、以及可调输出阻抗匹配部件1017。例如，DRx控制器1102可基于查找表来对可调部件进行调谐，该查找表将由频带选择信号指示的频率带(或频率带组)与调谐参数相关联。因此，响应于频带选择信号，DRx控制器1101可将调谐信号发送到(激活路径的)可调部件，以根据调谐参数来对可调部件(或其可变部件)进行调谐。在一些实施方式中，DRx控制器1102至少部分地基于被发送以用于控制放大器314a-314d的增益和/或电流的放大器控制信号来对可调部件进行调谐。在各种实施方式中，一个或多个可调部件可被不受DRx控制器1102控制的固定部件取代。DRx controller 1102 is configured to tune one or more of the following components: adjustable input impedance matching component 1016, adjustable impedance matching components 934a-934d, adjustable phase shifting components 724a-724d, and adjustable output impedance Matching part 1017. For example, the DRx controller 1102 can tune the tunable component based on a look-up table that associates a frequency band (or group of frequency bands) indicated by the band select signal with tuning parameters. Thus, in response to the band select signal, the DRx controller 1101 may send a tuning signal to the tunable component (of the activation path) to tune the tunable component (or variable component thereof) according to the tuning parameter. In some implementations, the DRx controller 1102 tunes the adjustable component based at least in part on amplifier control signals sent to control the gain and/or current of the amplifiers 314a-314d. In various implementations, one or more adjustable components may be replaced by fixed components that are not controlled by the DRx controller 1102 .

要领会的是，一个可调部件的调谐可能影响其它可调部件的调谐。因而，查找表中用于第一可调部件的调谐参数可基于用于第二可调部件的调谐参数。例如，用于可调相移部件724a-724d的调谐参数可基于用于可调阻抗匹配部件934a-934d的调谐参数。作为另一示例，用于可调阻抗匹配部件934a-934d的调谐参数可基于用于可调输入阻抗匹配部件1016的调谐参数。It is to be appreciated that the tuning of one adjustable component may affect the tuning of other adjustable components. Thus, the tuning parameters for the first tunable component in the lookup table may be based on the tuning parameters for the second tunable component. For example, tuning parameters for tunable phase shifting components 724a-724d may be based on tuning parameters for tunable impedance matching components 934a-934d. As another example, the tuning parameters for tunable impedance matching components 934 a - 934 d may be based on the tuning parameters for tunable input impedance matching component 1016 .

图12示出了处理RF信号的方法的流程表示的一实施例。在一些实施方式中(并且如下面作为示例所详述的)，方法1200由诸如图11的DRx控制器1102之类的控制器来执行。在一些实施方式中，方法1200由包括硬件、固件、软件、或其组合的处理逻辑来执行。在一些实施方式中，方法1200由执行在非暂时性计算机可读介质(例如，存储器)中存储的代码的处理器来执行。简言之，方法1200包括接收频带选择信号和沿一个或多个调谐路径来路由所接收的RF信号以处理所接收的RF信号。Figure 12 shows an embodiment of a flowchart representation of a method of processing RF signals. In some implementations (and as detailed below as an example), the method 1200 is performed by a controller, such as the DRx controller 1102 of FIG. 11 . In some implementations, the method 1200 is performed by processing logic comprising hardware, firmware, software, or a combination thereof. In some implementations, method 1200 is performed by a processor executing code stored in a non-transitory computer-readable medium (eg, memory). Briefly, method 1200 includes receiving a band selection signal and routing the received RF signal along one or more tuning paths to process the received RF signal.

方法1200始于块1210处，其中控制器接收频带选择信号。控制器可以从另一控制器接收频带选择信号，或者可以从蜂窝基站或其它外部来源接收频带选择信号。频带选择信号可指示无线装置发射和接收RF信号的一个或多个频率带。在一些实施方式中，频带选择信号指示用于载波聚合通信的一组频率带。Method 1200 begins at block 1210, where the controller receives a band select signal. The controller may receive the band selection signal from another controller, or may receive the band selection signal from a cellular base station or other external source. The band select signal may indicate one or more frequency bands in which the wireless device transmits and receives RF signals. In some embodiments, the frequency band selection signal indicates a set of frequency bands for carrier aggregation communications.

在块1220处，控制器基于频带选择信号来选择性地激活分集接收机(DRx)模块的一个或多个路径。如上所述，DRx模块可包括在DRx模块的(耦接到一个或多个天线的)一个或多个输入和(耦接到一个或多个传输线路的)一个或多个输出之间的多个路径。路径可包括旁路路径和复用器路径。复用器路径可包括模块上路径和模块外路径。At block 1220, the controller selectively activates one or more paths of the diversity receiver (DRx) module based on the band select signal. As mentioned above, a DRx module may include multiple switches between one or more inputs (coupled to one or more antennas) and one or more outputs (coupled to one or more transmission lines) of the DRx module. paths. Paths may include bypass paths and multiplexer paths. Multiplexer paths may include on-module paths and off-module paths.

控制器可通过例如断开或接通一个或多个旁路开关，经由放大器使能信号使能或禁止沿路径设置的放大器，经由分离器控制信号和/或组合器控制信号控制一个或多个复用器，或者通过其它机制，来选择性地激活多个路径中的一个或多个。例如，控制器可断开或接通沿路径设置的开关，或者将沿路径设置的放大器的增益设置为基本为零。The controller may control one or more bypass switches via, for example, opening or closing one or more bypass switches, enabling or disabling amplifiers disposed along the path via amplifier enable signals, via splitter control signals and/or combiner control signals multiplexer, or through other mechanisms, to selectively activate one or more of the multiple paths. For example, the controller may open or close switches disposed along the path, or set the gain of amplifiers disposed along the path to substantially zero.

在块1230处，控制器发送调谐信号到沿一个或多个激活路径设置的一个或多个可调部件。可调部件可包括以下各部件中的一个或多个：在DRx模块的输入处设置的可调输入阻抗匹配部件、分别沿多个路径设置的多个可调阻抗匹配部件、分别沿多个路径设置的多个可调相移部件、或者在DRx模块的输出处设置的可调输出阻抗匹配部件。At block 1230, the controller sends a tuning signal to one or more adjustable components disposed along the one or more activation paths. The adjustable components may include one or more of the following components: an adjustable input impedance matching component arranged at the input of the DRx module, a plurality of adjustable impedance matching components respectively arranged along a plurality of paths, a plurality of adjustable impedance matching components respectively arranged along a plurality of paths A plurality of adjustable phase shift components are provided, or an adjustable output impedance matching component is provided at the output of the DRx module.

控制器可基于查找表来对可调部件进行调谐，该查找表将由频带选择信号指示的频率带(或频率带组)与调谐参数相关联。因此，响应于频带选择信号，DRx控制器可将调谐信号发送到(激活路径的)可调部件，以根据调谐参数来对可调(tunable)部件(或其可变(variable)部件)进行调谐。在一些实施方式中，控制器至少部分地基于被发送以用于控制分别沿一个或多个激活路径设置的一个或多个放大器的增益和/或电流的放大器控制信号来对可调部件进行调谐。The controller may tune the adjustable component based on a look-up table that associates a frequency band (or set of frequency bands) indicated by the band select signal with tuning parameters. Thus, in response to the band select signal, the DRx controller may send a tuning signal to the tunable component (of the active path) to tune the tunable component (or its variable component) according to the tuning parameter . In some embodiments, the controller tunes the adjustable component based at least in part on amplifier control signals sent to control the gain and/or current of one or more amplifiers respectively disposed along the one or more active paths .

图13示出在一些实施例中，一些或全部分集接收机配置(例如，图3-11所示的那些)可以全部或部分地实施在一模块中。这样的模块可以是例如前端模块(FEM)。这样的模块可以是例如分集接收机(DRx)FEM。在图13的示例中，模块1300可以包括封装衬底1302，多个部件可以安装在这样的封装衬底1302上。例如，控制器1304(其可包括前端功率管理集成电路(FE-PIMC))、低噪声放大器组件(assembly)1306(其可包括一个或多个可变增益放大器)、匹配部件1308(其可包括一个或多个固定或可调相移部件1331和一个或多个固定或可调阻抗匹配部件1332)、复用器组件1310、以及滤波器组1312(其可包括一个或多个带通滤波器)可安装和/或实施在封装衬底1302上和/或内。诸如多个表面安装技术(SMT)器件1314之类的其它部件也可以安装在封装衬底1302上。尽管将所有的各个部件都描绘为部署在封装衬底1302上，但是将理解，可以在一些部件上方实施其它部件。Figure 13 shows that in some embodiments, some or all of the diversity receiver configurations (eg, those shown in Figures 3-11) may be implemented in whole or in part in a module. Such a module may be, for example, a front end module (FEM). Such a module may be, for example, a diversity receiver (DRx) FEM. In the example of FIG. 13 , a module 1300 may include a packaging substrate 1302 on which a plurality of components may be mounted. For example, controller 1304 (which may include a front-end power management integrated circuit (FE-PIMC), low noise amplifier assembly 1306 (which may include one or more variable gain amplifiers), matching components 1308 (which may include One or more fixed or adjustable phase shifting components 1331 and one or more fixed or adjustable impedance matching components 1332), multiplexer assembly 1310, and filter bank 1312 (which may include one or more bandpass filters ) may be mounted and/or implemented on and/or within the packaging substrate 1302. Other components such as a number of surface mount technology (SMT) devices 1314 may also be mounted on the package substrate 1302 . Although all of the various components are depicted as being disposed on the packaging substrate 1302, it will be understood that some components may be implemented over other components.

在一些实施方式中，具有在这里描述的一个或多个特征的器件和/或电路可以包括在诸如无线装置之类的RF电子装置中。这种器件和/或电路可直接地在无线装置中实施、以如在这里描述的模块形式实施、或以它们的某种组合实施。在一些实施例中，这种无线装置例如可以包括蜂窝电话、智能电话、具有或没有电话功能的手持无线装置、无线平板电脑等。In some implementations, a device and/or circuit having one or more features described herein may be included in an RF electronic device, such as a wireless device. Such devices and/or circuits may be implemented directly in the wireless device, in modular form as described herein, or in some combination thereof. In some embodiments, such wireless devices may include, for example, cellular phones, smart phones, handheld wireless devices with or without phone functionality, wireless tablet computers, and the like.

图14描绘了具有在这里描述的一个或多个有利特征的示例无线装置1400。在具有如在这里描述的一个或多个特征的一个或多个模块的上下文中，这样的模块可一般地由虚线框1401(其可实施为例如前端模块)、分集RF模块1411(其可实施为例如下游模块)、以及分集接收机(DRx)模块1300(其可实施为例如前端模块)表示。14 depicts an example wireless device 1400 having one or more advantageous features described herein. In the context of one or more modules having one or more features as described herein, such modules may generally be represented by dashed box 1401 (which may implement, for example, a front-end module), diversity RF module 1411 (which may implement is represented, for example, as a downstream module), and a diversity receiver (DRx) module 1300 (which may be implemented, for example, as a front-end module).

参考图14，功率放大器(PA)1420可以从收发机1410接收其相应的RF信号，收发机1410可以按照已知的方式配置和操作为生成要放大和发射的RF信号，并且处理所接收的信号。将收发机1410示出为与基带子系统1408进行交互，基带子系统1408被配置为提供适于用户的数据和/或话音信号与适于收发机1410的RF信号之间的转换。收发机1410还可以与功率管理部件1406进行通信，功率管理部件1406配置为管理用于操作无线装置1400的功率。这种功率管理还可以控制基带子系统1408以及模块1401、1411和1300的操作。Referring to FIG. 14, a power amplifier (PA) 1420 may receive its corresponding RF signal from a transceiver 1410, which may be configured and operated in a known manner to generate an RF signal to be amplified and transmitted, and to process the received signal . Transceiver 1410 is shown interacting with baseband subsystem 1408 configured to provide conversion between data and/or voice signals suitable for a user and RF signals suitable for transceiver 1410 . The transceiver 1410 may also be in communication with a power management component 1406 configured to manage power used to operate the wireless device 1400 . Such power management may also control the operation of baseband subsystem 1408 and modules 1401 , 1411 and 1300 .

将基带子系统1408示出为连接到用户接口1402，以便于向用户提供和从用户接收的话音和/或数据的各种输入和输出。基带子系统1408还可以连接到存储器1404，存储器1404配置为存储用于便于无线装置的操作的数据和/或指令，和/或向用户提供信息的存储。Baseband subsystem 1408 is shown coupled to user interface 1402 to facilitate various inputs and outputs of voice and/or data to and received from a user. Baseband subsystem 1408 may also be connected to memory 1404 configured to store data and/or instructions to facilitate operation of the wireless device, and/or to provide storage of information to a user.

在示例无线装置1400中，将各PA1420的输出示出为(经由相应的匹配电路1422)被匹配和路由到它们相应的双工器1424。可以通过天线开关1414将这种放大且滤波后的信号路由到主天线1416，以用于发射。在一些实施例中，双工器1424可以允许使用公共天线(例如，主天线1416)来同时地执行发射和接收操作。在图14中，将所接收的信号示出为路由到例如可以包括低噪声放大器(LNA)的“接收(Rx)”路径。In the example wireless device 1400 , the outputs of each PA 1420 are shown matched and routed to their respective duplexers 1424 (via respective matching circuits 1422 ). This amplified and filtered signal may be routed through antenna switch 1414 to main antenna 1416 for transmission. In some embodiments, duplexer 1424 may allow transmit and receive operations to be performed simultaneously using a common antenna (eg, primary antenna 1416 ). In FIG. 14, the received signal is shown routed to a "receive (Rx)" path which may include, for example, a low noise amplifier (LNA).

无线装置还包括分集天线1426和接收来自分集天线1426的信号的分集接收机模块1300。分集接收机模块1300处理所接收的信号并且经由传输线路1435将处理后的信号发送到分集RF模块1411，分集RF模块1411在将信号馈送到收发机1410之前进一步处理该信号。The wireless device also includes a diversity antenna 1426 and a diversity receiver module 1300 that receives signals from the diversity antenna 1426 . Diversity receiver module 1300 processes the received signal and sends the processed signal via transmission line 1435 to diversity RF module 1411 , which further processes the signal before feeding it to transceiver 1410 .

可以利用如在这里描述的各种蜂窝频率带来实施本申请的一个或多个特征。在表1中列出了这些频带的示例。将理解，可以将所述频带中的至少一些划分为子频带。还将理解，本申请的一个或多个特征可与不具有诸如表1的示例之类的指定(designation)的频率范围一起实施。One or more features of the present application may be implemented using various cellular frequency bands as described herein. Examples of these frequency bands are listed in Table 1. It will be appreciated that at least some of the frequency bands may be divided into sub-bands. It will also be understood that one or more features of the present application may be implemented with frequency ranges that do not have a designation such as the example of Table 1.

表1Table 1

除非上下文清楚地另有要求，否则贯穿说明书和权利要求书，要按照与排他性或穷尽性的意义相反的包括性的意义，也就是说，按照“包括但不限于”的意义来阐释术语“包括(comprise)”、“包含(comprising)”等。如在这里一般使用的术语“耦接”是指两个或更多元件可以直接地连接、或者借助于一个或多个中间元件来连接。另外，当在本申请中使用时，术语“在这里”、“上面”、“下面”和相似含义的术语应该是指作为整体的本申请，而不是本申请的任何具体部分。在上下文允许时，使用单数或复数的以上描述中的术语也可以分别包括复数或单数。提及两个或更多项目的列表时的术语“或”，这个术语涵盖该术语的以下解释中的全部：列表中的任何项目、列表中的所有项目、和列表中项目的任何组合。Unless the context clearly requires otherwise, throughout the specification and claims, the term "including but not limited to" is interpreted in an inclusive sense as opposed to an exclusive or exhaustive sense, that is, in the sense of "including but not limited to" (comprise)", "comprising (comprising)", etc. The term "coupled" as generally used herein means that two or more elements may be connected, either directly or via one or more intervening elements. Additionally, the terms "herein," "above," "below," and terms of similar import, when used in this application, shall refer to this application as a whole and not to any particular portions of this application. Terms in the above description that use the singular or the plural may also include the plural or the singular, respectively, when the context permits. The term "or" when referring to a list of two or more items, this term encompasses all of the following interpretations of that term: any item in the list, all items in the list, and any combination of items in the list.

本发明实施例的以上详细描述不意欲是穷尽性的，或是将本发明限于上面所公开的精确形式。尽管上面出于说明的目的描述了本发明的具体实施例和用于本发明的示例，但是如本领域技术人员将认识到的，在本发明范围内的各种等效修改是可能的。例如，尽管按照给定顺序呈现了处理或块，但是替换的实施例可以执行具有不同顺序的步骤的处理，或采用具有不同顺序的块的系统，并且一些处理或块可以被删除、移动、添加、减去、组合和/或修改。可以按照各种不同的方式来实现这些处理或块中的每一个。同样地，尽管有时将处理或块示出为串行地执行，但是相反地，这些处理或块也可以并行地执行，或者可以在不同时间进行执行。The above detailed description of the embodiments of the invention is not intended to be exhaustive or to limit the invention to the precise forms disclosed above. While specific embodiments of, and examples for, the invention are described above for illustrative purposes, various equivalent modifications are possible within the scope of the invention, as those skilled in the relevant art will recognize. For example, although processes or blocks are presented in a given order, alternative embodiments may perform processes with steps in a different order, or employ a system of blocks with a different order, and some processes or blocks may be deleted, moved, added , subtract, combine and/or modify. Each of these processes or blocks may be implemented in various different ways. Also, although processes or blocks are sometimes shown as being performed in series, they may conversely be performed in parallel, or may be performed at different times.

可以将在这里提供的本发明的教导应用于其他系统，而不必是上述的系统。可以对上述的各个实施例的元素和动作进行组合，以提供进一步的实施例。The teachings of the invention provided herein can be applied to other systems, not necessarily the ones described above. The elements and acts of the various embodiments described above can be combined to provide further embodiments.

尽管已经描述了本发明的一些实施例，但是已经仅仅借助于示例呈现了这些实施例，并且所述实施例不意欲限制本申请的范围。其实，可以按照多种其他形式来实施在这里描述的新颖方法和系统；此外，可以做出在这里描述的方法和系统的形式上的各种省略、替换和改变，而没有脱离本申请的精神。附图和它们的等效物意欲涵盖如将落入本申请的范围和精神内的这种形式或修改。While some embodiments of the inventions have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the application. Indeed, the novel methods and systems described herein may be implemented in many other forms; moreover, various omissions, substitutions, and changes in the form of the methods and systems described herein may be made without departing from the spirit of the application . The drawings and their equivalents are intended to cover such forms or modifications as would fall within the scope and spirit of the application.

Claims (20)

1. a receiving system, comprising:

Controller, what be configured to optionally to activate in the multiple paths between the input of described receiving system and the output of described receiving system is one or more;

Multiple amplifier, each amplifier in described multiple amplifier arranges along the path of the correspondence in described multiple path and the signal be configured to receiving at described amplifier place amplifies; And

Multiple phase-shifting elements, each phase-shifting elements in described multiple phase-shifting elements arranges along the path of the correspondence in described multiple path and the signal be configured to passing through described phase-shifting elements carries out phase shift.

2. receiving system according to claim 1, wherein, the the first phase shift component configuration arranged along first path corresponding with first frequency band in described multiple path in described multiple phase-shifting elements is carry out phase shift to the second frequency band of the signal passing through described first phase-shifting elements, makes along the second initialize signal of second propagated corresponding with described second frequency band in described multiple path and the second reflected signal homophase at least in part along described first propagated.

3. receiving system according to claim 2, wherein, the the second phase shift component configuration arranged along described second path in described multiple phase-shifting elements is carry out phase shift to the first frequency band of the signal passing through described second phase-shifting elements, makes the first initialize signal along described first propagated and the first reflected signal homophase at least in part along described second propagated.

4. receiving system according to claim 2, wherein, described first phase-shifting elements is also configured to carry out phase shift to the 3rd frequency band of the signal passing through described first phase-shifting elements, makes along the 3rd initialize signal of three propagated corresponding with described 3rd frequency band in described multiple path and the 3rd reflected signal homophase at least in part along described first propagated.

5. receiving system according to claim 2, wherein, described first phase shift component configuration is carry out phase shift to the second frequency band of the signal passing through described first phase-shifting elements, makes described second initialize signal and described second reflected signal have the phase difference of the integral multiple of 360 degree.

6. receiving system according to claim 1, also comprises multiplexer, is configured to the multiple signals input signal received in described input being separated into the corresponding multiple frequency band along described multiple propagated.

7. receiving system according to claim 1, also comprises signal combiner, is configured to combine the signal along described multiple propagated.

8. receiving system according to claim 7, also comprises amplifier after combiner, is arranged between described signal combiner and described output, the signal that after amplifier is configured to be amplified in described combiner after described combiner, amplifier place receives.

9. receiving system according to claim 7, wherein, each phase-shifting elements in described multiple phase-shifting elements is arranged between described signal combiner and the corresponding amplifier in described multiple amplifier.

10. receiving system according to claim 1, wherein, at least one amplifier in described multiple amplifier comprises dual-stage amplifier.

11. receiving systems according to claim 1, wherein, at least one phase-shifting elements in described multiple phase-shifting elements is passive circuit.

12. receiving systems according to claim 1, wherein, at least one phase-shifting elements in described multiple phase-shifting elements is lc circuit.

13. receiving systems according to claim 1, wherein, at least one phase-shifting elements in described multiple phase-shifting elements comprises tunable phase shift parts, is configured to pass through signal phase shift one amount of described tunable phase shift parts, and this amount is controlled by the phase shift harmonic ringing received from described controller.

14. receiving systems according to claim 1, also comprise multiple impedance match part, each impedance match part in described multiple impedance match part arranges along the path of the correspondence in described multiple path and is configured at least one in the out-of-band noise coefficient in the correspondence path reduced in described multiple path or the outer gain of band.

15. 1 kinds of radio frequency modules, comprising:

Package substrate, is configured to hold multiple parts; And

Receiving system, implement in described package substrate, described receiving system comprises: controller, and what be configured to optionally to activate in the multiple paths between the input of described receiving system and the output of described receiving system is one or more; Multiple amplifier, each amplifier in described multiple amplifier arranges along the path of the correspondence in described multiple path and the signal be configured to receiving at described amplifier place amplifies; And multiple phase-shifting elements, each phase-shifting elements in described multiple phase-shifting elements arranges along the path of the correspondence in described multiple path and the signal be configured to passing through described phase-shifting elements carries out phase shift.

16. RF modules according to claim 15, wherein, described RF module is diversity receiver front-end module FEM.

17. RF modules according to claim 15, wherein, the the first phase shift component configuration arranged along first path corresponding with first frequency band in described multiple path in described multiple phase-shifting elements is carry out phase shift to the second frequency band of the signal passing through described first phase-shifting elements, makes along the second initialize signal of second propagated corresponding with described second frequency band in described multiple path and the second reflected signal homophase at least in part along described first propagated.

18. 1 kinds of wireless devices, comprising:

First antenna, is configured to reception first radio frequency rf signal;

First front-end module FEM, with described first antenna communication, a described FEM comprises the package substrate being configured to hold multiple parts, a described FEM also comprises the receiving system implemented in described package substrate, described receiving system comprises: controller, and what be configured to optionally to activate in the multiple paths between the input of described receiving system and the output of described receiving system is one or more; Multiple amplifier, each amplifier in described multiple amplifier arranges along the path of the correspondence in described multiple path and the signal be configured to receiving at described amplifier place amplifies; And multiple phase-shifting elements, each phase-shifting elements in described multiple phase-shifting elements arranges along the path of the correspondence in described multiple path and the signal be configured to passing through described phase-shifting elements carries out phase shift; And

Transceiver, is configured to export from described the process version receiving a described RF signal via transmission line, and generates data bit based on the process version of a described RF signal.

19. wireless devices according to claim 18, also comprise the second antenna of being configured to reception second radio frequency rf signal and the 2nd FEM with described second antenna communication, described transceiver arrangement is the process version receiving described 2nd RF signal from the output of described 2nd FEM, and generates data bit based on the process version of described 2nd RF signal.

20. wireless devices according to claim 18, wherein, the the first phase shift component configuration arranged along first path corresponding with first frequency band in described multiple path in described multiple phase-shifting elements is carry out phase shift to the second frequency band of the signal passing through described first phase-shifting elements, makes along the second initialize signal of second propagated corresponding with described second frequency band in described multiple path and the second reflected signal homophase at least in part along described first propagated.