CN113702916A - Compact 2-18GHz solid-state ultra-wideband transmitter - Google Patents

Abstract

Translated fromChinese

本发明的一个实施例公开了一种紧凑型2‑18GHz固态超宽带发射机，包括驱动级功率放大电路模块，末级功率放大电路模块和供电控制保护电路模块；所述驱动级功率放大电路模块用于将接收的微波信号进行放大，并将放大后的微波信号发送给所述末级功率放大电路模块；所述末级功率放大电路模块对接收到的微波信号进行分配、放大以及合成处理，输出微波放大信号；所述供电控制保护电路模块接收外部母线电压以及第一控制信号，用于对所述超宽带发射机进行供电；还用于对所述末级功率放大电路模块输出的微波放大信号进行功率监测；还用于接收来自散热系统的控制信号，对所述超宽带发射机温度进行监测与保护。

An embodiment of the present invention discloses a compact 2-18GHz solid-state ultra-wideband transmitter, comprising a driver-level power amplifier circuit module, a final-stage power amplifier circuit module and a power supply control and protection circuit module; the driver-level power amplifier circuit module It is used to amplify the received microwave signal and send the amplified microwave signal to the final stage power amplifying circuit module; the final stage power amplifying circuit module distributes, amplifies and synthesizes the received microwave signal, outputting a microwave amplification signal; the power supply control and protection circuit module receives the external bus voltage and the first control signal, and is used to supply power to the ultra-wideband transmitter; and is also used to amplify the microwave output by the final stage power amplification circuit module The signal is used for power monitoring; it is also used for receiving the control signal from the cooling system to monitor and protect the temperature of the ultra-wideband transmitter.

Description

Compact 2-18GHz solid-state ultra-wideband transmitter

Technical Field

The invention relates to the technical field of radar. And more particularly to a compact 2-18GHz solid state ultra wideband transmitter.

Background

The ultra-wideband radar is an important development direction of radar technology, and the working bandwidth of an ultra-wideband transmitter serving as a core component of the ultra-wideband radar determines the distance resolution, the target identification capability and the anti-interference performance of the radar. However, the semiconductor laser is limited by the physical characteristics of the semiconductor and the influence of the processing technology, and the like, the working bandwidth is limited, and the output power is limited. The existing solid state ultra-wideband transmitter is mostly split type and has the problems of large volume and low heat capacity.

Disclosure of Invention

The invention aims to provide a compact 2-18GHz solid-state ultra-wideband transmitter. To solve at least one of the problems of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a compact 2-18GHz solid state ultra wide band transmitter, which comprises

The power amplifier comprises a drive-stage power amplifying circuit module, a final-stage power amplifying circuit module and a power supply control protection circuit module;

the drive-stage power amplification circuit module is used for amplifying the received microwave signal and sending the amplified microwave signal to the final-stage power amplification circuit module;

the final power amplification circuit module performs distribution, amplification and synthesis processing on the received microwave signals and outputs microwave amplification signals;

the power supply control protection circuit module receives external bus voltage and a first control signal and is used for supplying power to the ultra-wideband transmitter; the power supply control protection circuit module is also used for carrying out power monitoring on the microwave amplification signal output by the final-stage power amplification circuit module; the power supply control protection circuit module is also used for receiving a control signal from a heat dissipation system and monitoring and protecting the temperature of the ultra-wideband transmitter.

In one particular embodiment of the present invention,

the final power amplifier circuit block comprises: the power amplifier comprises sixteen paths of extended coaxial power distributors, sixteen paths of fin line ultra-wideband power amplifiers and sixteen paths of extended coaxial power combiners;

the sixteen-path extended coaxial power distributor is used for receiving and distributing microwave signals from the driving-level power amplification circuit module, and respectively sending the microwave signals to the sixteen-path fin-line ultra-wideband power amplifier, the sixteen-path fin-line ultra-wideband power amplifier amplifies the received microwave signals and then sends the amplified microwave signals to the sixteen-path extended coaxial power combiner, and the sixteen-path extended coaxial power combiner combines the received sixteen-path microwave signals and outputs microwave amplified signals.

In one particular embodiment of the present invention,

the drive stage power amplification circuit module comprises: a microwave chip switch, a GaN power amplifying chip and a microstrip chip;

the microstrip piece is used for transmitting microwave signals;

the microwave chip switch is used for controlling whether the driving stage power amplification circuit module receives a microwave signal input from the outside or not;

the GaN power amplification chip is used for amplifying the received microwave signal and outputting the amplified microwave signal.

In one particular embodiment of the present invention,

the sixteen-way fin-line ultra-wideband power amplifier comprises: a first to a sixteenth fin-line ultra-wideband power amplifier; the fin-line ultra-wideband power amplifier is composed of an input port, an output port and two power supply ports.

In one particular embodiment of the present invention,

the power supply control protection circuit module includes: the power supply circuit and the power coupling control protection circuit;

the power supply circuit is used for supplying power to the ultra-wideband transmitter;

the power coupling control protection circuit is used for carrying out power monitoring on the microwave amplification signal output by the final power amplification circuit module; and outputting a first monitoring control signal to the power supply circuit for ensuring stable operation of the transmitter.

In one particular embodiment of the present invention,

the power supply control protection circuit module further includes: the temperature control protection circuit and the fan;

the temperature control protection circuit is used for receiving a control signal from a heat dissipation system, outputting a temperature monitoring control signal to the power supply circuit and monitoring and protecting the temperature of the ultra-wideband transmitter;

the fan is connected with the power supply circuit and used for dissipating heat.

In one particular embodiment of the present invention,

the microwave chip switch, the GaN power amplification chip and the microstrip sheet are connected through a gold wire and a key, and microwave signals are transmitted.

The invention has the following beneficial effects:

the invention provides a compact 2-18GHz solid-state ultra-wideband transmitter, which realizes nine octaves of bandwidth, achieves hundred watt level of full-band output power, and solves the problems that the ultra-wideband transmitter cannot simultaneously meet ultra-wideband working frequency band, and is compact in structure, low in weight, high in power, excellent in heat dissipation and good in reliability index. The compact 2-18GHz solid-state ultra-wideband transmitter can be used as an interference source, is a core component of electronic countermeasure equipment, and is indispensable important equipment in a future electronic countermeasure system; another important application of the ultra-wideband transmitter is that the ultra-wideband transmitter can be used as a test device for testing the anti-interference performance of radar and other devices, improving the distance resolution capability, enhancing the comprehensive anti-interference capability, and having wide application and great potential in the aspects of optimizing signal-to-noise ratio, anti-noise, anti-clutter and the like and improving the signal quality.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 shows a schematic diagram of a compact 2-18GHz solid-state ultra-wideband transmitter according to one embodiment of the application.

Fig. 2 shows a schematic diagram of a driver stage power amplification circuit according to an embodiment of the present application.

FIG. 3 illustrates a side view of a compact 2-18GHz solid-state ultra-wideband transmitter structure according to one embodiment of the application.

FIG. 4 shows a top view of a compact 2-18GHz solid-state ultra-wideband transmitter structure according to one embodiment of the application.

Detailed Description

In order to make the technical solutions and advantages of the present invention clearer, the following will describe embodiments of the present invention in further detail with reference to the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.

In order to meet the application requirements of a plurality of modern technologies such as radar anti-interference pods, ultra-wideband microwave test equipment and the like, the output power of the solid-state transmitter must be increased by adopting a mode of combining power of a plurality of unit modules; and a new power synthesis mode is adopted to expand the working frequency range of the transmitter. The power synthesis distribution network is an important ring in the ultra-wideband solid-state transmitter, and the space power synthesis structure can meet the application requirements of working bandwidth and low insertion loss.

As shown in FIG. 1, one embodiment of the invention discloses a compact 2-18GHz solid-state ultra-wideband transmitter comprising

The power amplifier comprises a drive-stage power amplifying circuit module, a final-stage power amplifying circuit module and a power supply control protection circuit module;

the drive-stage power amplification circuit module is used for amplifying the received microwave signal and sending the amplified microwave signal to the final-stage power amplification circuit module;

the final power amplification circuit module performs distribution, amplification and synthesis processing on the received microwave signals and outputs microwave amplification signals;

the power supply control protection circuit module receives external bus voltage and a first control signal and is used for supplying power to each power amplification component of the ultra-wideband transmitter; the power supply control protection circuit module is also used for carrying out power monitoring on the microwave amplification signal output by the final-stage power amplification circuit module; the power supply control protection circuit module is also used for receiving a control signal from a heat dissipation system and monitoring and protecting the temperature of the ultra-wideband transmitter.

In a specific embodiment, the driver stage power amplifier circuit module includes: a microwave chip switch, a GaN power amplifying chip and a microstrip chip; the microstrip piece is used for transmitting microwave signals; the microwave chip switch is used for controlling whether the driving stage power amplification circuit module receives a microwave signal input from the outside or not; the GaN power amplification chip is used for amplifying the received microwave signal and outputting the amplified microwave signal.

In this embodiment, the microwave chip switch, the GaN power amplifier chip, and the microstrip patch all belong to a microwave power device, and the microwave chip switch and the GaN power amplifier chip are soldered to the module case. The microwave chip switch, the GaN power amplification chip and the microstrip sheet are connected through a gold wire and a key, and microwave signals are transmitted.

In this embodiment, as shown in fig. 2, the driver-level power amplifier circuit module has six ports, and one input port is an input port of a compact 2-18GHz solid-state ultra-wideband transmitter; two microwave chip switch power supply ports; two GaN power amplification chip power supply ports; and one microwave signal output port is connected with the input port of the next-stage final-stage power amplification circuit module.

In a specific embodiment, the final stage power amplifying circuit block includes: the power amplifier comprises sixteen paths of extended coaxial power distributors, sixteen paths of fin line ultra-wideband power amplifiers and sixteen paths of extended coaxial power combiners;

the sixteen-path extended coaxial power distributor is used for receiving and distributing microwave signals from the driving-level power amplification circuit module, and respectively sending the microwave signals to the sixteen-path fin-line ultra-wideband power amplifier, the sixteen-path fin-line ultra-wideband power amplifier amplifies the received microwave signals and then sends the amplified microwave signals to the sixteen-path extended coaxial power combiner, and the sixteen-path extended coaxial power combiner combines the received sixteen-path microwave signals and outputs microwave amplified signals. In the embodiment, the ultra-wideband, that is, the bandwidth reaches nine octaves, and the working frequency range is 2-18 GHz.

In one embodiment, the sixteen-way fin-line ultra-wideband power amplifier comprises: the first to sixteenth fin-line ultra-wideband power amplifiers A1-A16; the fin-line ultra-wideband power amplifiers A1-A16 are completely the same and are microstrip power amplifiers, and each of the microstrip power amplifiers consists of an input port, an output port and two power supply ports. The input port of the sixteen-path expansion coaxial power distributor is connected with the output port of the drive-level power amplification circuit module; sixteen output ports of the sixteen-path extended coaxial power distributor respectively connect sixteen paths of equally-divided microwave signals with equal amplitude and equal phase with input ports of sixteen identical fin-line ultra-wideband power amplifiers A1-A16; the output ports of sixteen fin-line ultra-wideband power amplifiers A1-A16 are connected with the input ports of sixteen paths of extended coaxial power combiners, two power supply ports of each of the sixteen paths of fin-line ultra-wideband power amplifiers are connected with a power supply circuit of a power supply control protection circuit module, sixteen paths of microwave power amplification signals are subjected to space power synthesis in the sixteen paths of extended coaxial power combiners, and finally the microwave power amplification signals are output through the output ports of the sixteen paths of extended coaxial power combiners.

In a specific embodiment, the power supply control protection circuit module includes: the power supply circuit and the power coupling control protection circuit; the power supply circuit is used for supplying power to each power amplification component of the ultra-wideband transmitter; the power coupling control protection circuit is used for carrying out power monitoring on the microwave amplification signal output by the final power amplification circuit module; and outputting a first monitoring control signal to the power supply circuit for ensuring stable operation of the transmitter.

In a specific embodiment, the power supply control protection circuit module further includes: the temperature control protection circuit and the fan; the temperature control protection circuit is used for receiving a control signal from a heat dissipation system, outputting a temperature monitoring control signal to the power supply circuit and monitoring and protecting the temperature of the ultra-wideband transmitter; the fan is connected with the power supply circuit and used for dissipating heat.

In this embodiment, the power supply circuit supplies power to each power amplification component of the solid-state ultra-wideband transmitter of the present invention through the power supply port; the power coupling control protection circuit monitors the power of the output port in real time, the input port of the power coupling control protection circuit is connected with the output port of the sixteen-path extended coaxial power synthesizer, the output interface is connected with the power supply circuit, and the output port outputs a monitoring control signal to the power supply circuit to ensure the stable operation of the transmitter; the temperature control protection circuit monitors and protects the temperature of the solid-state ultra-wideband transmitter in real time, and the stability and reliability of the transmitter are effectively improved. The input port of the power supply circuit is connected with the external bus power supply voltage, and the output port of the power supply circuit is connected with the power supply input ports of the driving-stage power amplification circuit module and the sixteen fin-line ultra-wideband power amplifiers A1-A16; the input port of the temperature control protection circuit is connected with a heat dissipation system of the transmitter, and the output port of the temperature control protection circuit is connected with the power supply circuit.

The scheme of the compact 2-18GHz solid-state ultra-wideband transmitter provided by the invention has the advantages that the bandwidth reaches nine octaves, the size of the transmitter is controlled to be 257mm x 222mm x 188mm, and the full-band output power reaches hundreds of watts. The side view and the top view of the structure are shown in fig. 3 and fig. 4. When the compact 2-18GHz solid-state ultra-wideband transmitter works, input signals are fed in by a coaxial line, pass through a driving-stage power amplification circuit module, a sixteen-path extended coaxial power distributor, a fin-line ultra-wideband power amplifier A1-A16 and a sixteen-path extended coaxial power combiner respectively, and finally output microwave power amplification signals.

The invention provides a compact 2-18GHz solid-state ultra-wideband transmitter, which realizes nine octaves of bandwidth, achieves hundred watt level of full-band output power, and solves the problems that the ultra-wideband transmitter cannot simultaneously meet ultra-wideband working frequency band, and is compact in structure, low in weight, high in power, excellent in heat dissipation and good in reliability index. The compact 2-18GHz solid-state ultra-wideband transmitter can be used as an interference source, is a core component of electronic countermeasure equipment, and is indispensable important equipment in a future electronic countermeasure system; another important application of the ultra-wideband transmitter is that the ultra-wideband transmitter can be used as a test device for testing the anti-interference performance of radar and other devices, improving the distance resolution capability, enhancing the comprehensive anti-interference capability, and having wide application and great potential in the aspects of optimizing signal-to-noise ratio, anti-noise, anti-clutter and the like and improving the signal quality.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.

Claims (7)

Translated fromChinese

1.一种紧凑型2-18GHz固态超宽带发射机，其特征在于，包括1. a compact 2-18GHz solid-state ultra-wideband transmitter is characterized in that, comprising驱动级功率放大电路模块，末级功率放大电路模块和供电控制保护电路模块；Drive stage power amplifier circuit module, final stage power amplifier circuit module and power supply control protection circuit module;所述驱动级功率放大电路模块用于将接收的微波信号进行放大，并将放大后的微波信号发送给所述末级功率放大电路模块；The driving stage power amplifying circuit module is used for amplifying the received microwave signal, and sending the amplified microwave signal to the final stage power amplifying circuit module;所述末级功率放大电路模块对接收到的微波信号进行分配、放大以及合成处理，输出微波放大信号；The final stage power amplifying circuit module distributes, amplifies and synthesizes the received microwave signal, and outputs the microwave amplified signal;所述供电控制保护电路模块接收外部母线电压以及第一控制信号，用于对所述超宽带发射机进行供电；所述供电控制保护电路模块还用于对所述末级功率放大电路模块输出的微波放大信号进行功率监测；所述供电控制保护电路模块还用于接收来自散热系统的控制信号，对所述超宽带发射机温度进行监测与保护。The power supply control protection circuit module receives the external bus voltage and the first control signal, and is used to supply power to the ultra-wideband transmitter; the power supply control protection circuit module is also used for the output of the final stage power amplifier circuit module. The microwave amplifying signal is used for power monitoring; the power supply control and protection circuit module is also used for receiving the control signal from the cooling system to monitor and protect the temperature of the ultra-wideband transmitter.2.根据权利要求1所述的发射机，其特征在于，2. The transmitter according to claim 1, characterized in that,所述末级功率放大电路模块包括：十六路扩展同轴功率分配器、十六路鳍线超宽带功率放大器以及十六路扩展同轴功率合成器；The final stage power amplifier circuit module includes: a sixteen-way extended coaxial power divider, a sixteen-way fin line ultra-wideband power amplifier, and a sixteen-way extended coaxial power combiner;所述十六路扩展同轴功率分配器用于接收来自所述驱动级功率放大电路模块的微波信号并进行分配，分别发送到所述十六路鳍线超宽带功率放大器中，所述十六路鳍线超宽带功率放大器对接收到的微波信号进行放大后发送给所述十六路扩展同轴功率合成器，所述十六路扩展同轴功率合成器将接收到的十六路微波信号进行合成，输出微波放大信号。The sixteen-channel extended coaxial power divider is used for receiving and distributing microwave signals from the power amplifier circuit module of the driver stage, and respectively sending them to the sixteen-channel fin line ultra-wideband power amplifier. The fin-line ultra-wideband power amplifier amplifies the received microwave signal and sends it to the sixteen-channel extended coaxial power combiner, and the sixteen-channel extended coaxial power combiner performs the received sixteen-channel microwave signal processing. Synthesize and output microwave amplified signal.3.根据权利要求1所述的发射机，其特征在于，3. The transmitter of claim 1, wherein所述驱动级功率放大电路模块包括：微波芯片开关、GaN功率放大芯片和微带片；The driver-level power amplifier circuit module includes: a microwave chip switch, a GaN power amplifier chip and a microstrip chip;所述微带片用于进行微波信号的传输；The microstrip sheet is used to transmit microwave signals;所述所述微波芯片开关用于控制所述驱动级功率放大电路模块是否接收外界输入的微波信号；The microwave chip switch is used to control whether the power amplifier circuit module of the driving stage receives the microwave signal input from the outside;所述GaN功率放大芯片用于将接收到的微波信号进行放大，并输出放大后的微波信号。The GaN power amplifying chip is used to amplify the received microwave signal and output the amplified microwave signal.4.根据权利要求2所述的发射机，其特征在于，4. The transmitter of claim 2, wherein所述十六路鳍线超宽带功率放大器包括：第一鳍线超宽带功率放大器至第十六鳍线超宽带功率放大器；所述鳍线超宽带功率放大器，分别由一个输入端口和一个输出端口以及两个供电端口组成。The sixteen-way fin-line ultra-wideband power amplifier includes: the first fin-line ultra-broadband power amplifier to the sixteenth fin-line ultra-broadband power amplifier; the fin-line ultra-wideband power amplifier consists of an input port and an output port respectively. and two power supply ports.5.根据权利要求1所述的发射机，其特征在于，5. The transmitter of claim 1, wherein所述供电控制保护电路模块包括：供电电路和功率耦合控制保护电路；The power supply control and protection circuit module includes: a power supply circuit and a power coupling control and protection circuit;所述供电电路用于对所述超宽带发射机进行供电；The power supply circuit is used to supply power to the ultra-wideband transmitter;所述功率耦合控制保护电路用于对所述末级功率放大电路模块输出的微波放大信号进行功率监测；并输出第一监控控制信号至所述供电电路，用于确保发射机稳定运行。The power coupling control and protection circuit is used to monitor the power of the microwave amplification signal output by the final stage power amplifier circuit module; and output a first monitoring control signal to the power supply circuit to ensure stable operation of the transmitter.6.根据权利要求5所述的发射机，其特征在于，6. The transmitter of claim 5, wherein所述供电控制保护电路模块还包括：温度控制保护电路和风机；The power supply control protection circuit module further includes: a temperature control protection circuit and a fan;所述温度控制保护电路用于接收来自散热系统的控制信号，并输出温度监控控制信号至所述供电电路，用于对所述超宽带发射机温度进行监测与保护；The temperature control and protection circuit is used for receiving a control signal from the cooling system, and outputting a temperature monitoring control signal to the power supply circuit, for monitoring and protecting the temperature of the ultra-wideband transmitter;所述风机与所述供电电路连接用于散热。The fan is connected to the power supply circuit for heat dissipation.7.根据权利要求3所述的发射机，其特征在于，7. The transmitter of claim 3, wherein所述微波芯片开关、GaN功率放大芯片和微带片之间的通过键和的金丝进行连接并传输微波信号。The microwave chip switch, the GaN power amplifying chip and the microstrip sheet are connected by the gold wire through the bond and transmit the microwave signal.

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