技术领域Technical Field
本发明涉及天线设备技术领域，更具体的是涉及一种双频双极化小基站天线。The present invention relates to the technical field of antenna equipment, and more specifically to a dual-frequency dual-polarization small base station antenna.
背景技术Background technique
在现今无线通信领域，天线需求量越来越大，性能要求也越来越高。特别对于一些特殊场景的天线，频谱资源使用繁多，对天线的外观，尺寸和频段范围都有很高的要求，所以对天线的设计中，不但要考虑天线性能、工艺、可靠性，当产品需求量极大的时候，还要考虑天线厂家的生产效率和生产质量。In today's wireless communication field, the demand for antennas is increasing, and the performance requirements are getting higher and higher. Especially for antennas in some special scenarios, spectrum resources are widely used, and there are high requirements for the appearance, size and frequency band range of the antenna. Therefore, in the design of the antenna, not only the antenna performance, process and reliability must be considered, but also the production efficiency and production quality of the antenna manufacturer must be considered when the product demand is extremely high.
发明内容Summary of the invention
本发明的目的就是为了解决现有技术之不足而提供的一种结构简单，天线覆盖区域效果好，便于模块化生产，会给用户带来高速的数据传输的双频双极化小基站天线。The purpose of the present invention is to solve the deficiencies of the prior art and to provide a dual-frequency dual-polarization small base station antenna with a simple structure, good antenna coverage area effect, easy modular production, and high-speed data transmission for users.
本发明是采用如下技术解决方案来实现上述目的：一种双频双极化小基站天线，其特征在于，它包括覆盖频段为698MHz-960MHz的低频辐射单元、覆盖频段为1710MHz-2700MHz的高频辐射单元、合路器，低频辐射单元和高频辐射单元皆采用印刷版振子，极化方向皆为±45°极化，低频辐射单元和高频辐射单元前后并排放置，并通过合路器进行连接。The present invention adopts the following technical solutions to achieve the above-mentioned purpose: a dual-frequency dual-polarization small base station antenna, characterized in that it includes a low-frequency radiation unit covering a frequency band of 698MHz-960MHz, a high-frequency radiation unit covering a frequency band of 1710MHz-2700MHz, and a combiner. The low-frequency radiation unit and the high-frequency radiation unit both use printed oscillators, and the polarization directions are both ±45° polarization. The low-frequency radiation unit and the high-frequency radiation unit are placed side by side front and back and are connected through a combiner.
作为上述方案的进一步说明，低频辐射单元在沿用常规印刷板振子的基础上做出了适当改良，低频单元采用了巴伦平衡馈电，振子印刷板下面增加了耦合的塑料方块，振子四个角增加了加载铜管；低频辐射单元安装在合路器上面，利用合路器作为支撑，同时进行馈电，不需要任何同轴电缆进行连接，结构简单紧凑。As a further explanation of the above scheme, the low-frequency radiating unit has been appropriately improved on the basis of the conventional printed circuit oscillator. The low-frequency unit adopts balun balanced feeding, a coupling plastic block is added under the oscillator printed circuit, and loading copper tubes are added to the four corners of the oscillator. The low-frequency radiating unit is installed on the combiner, using the combiner as a support and feeding at the same time. It does not require any coaxial cable for connection, and the structure is simple and compact.
进一步地，高频辐射单元同样采用巴伦馈电，沿用常规的印刷板振子的基础上做出了适当改良，振子采用巴伦平衡馈电，直接放置于合路器上面，与合路器连为一体，振子经过改良后被切掉四角。Furthermore, the high-frequency radiation unit also adopts balun feeding, and appropriate improvements are made on the basis of the conventional printed circuit board oscillator. The oscillator adopts balun balanced feeding, is placed directly on the combiner, and is connected to the combiner as an integral whole. The four corners of the oscillator are cut off after improvement.
进一步地，合路器上面有四个焊点，分别连接低频辐射单元和高频辐射单元的极化的接头线和辐射单元，合路器放置于高频辐射单元下方，和高频辐射单元直接连接后进行馈电。Furthermore, there are four welding points on the combiner, which are respectively connected to the polarized connector wires and the radiation units of the low-frequency radiation unit and the high-frequency radiation unit. The combiner is placed under the high-frequency radiation unit and is directly connected to the high-frequency radiation unit for feeding.
进一步地，天线内部各部件独立，可以分成多部分组合，便于进行模块化优化和自动化生产。Furthermore, the internal components of the antenna are independent and can be combined into multiple parts, which facilitates modular optimization and automated production.
进一步地，合路器放置于高频辐射单元下方，和高频辐射单元直接连接后进行馈电。Furthermore, the combiner is placed below the high-frequency radiation unit and is directly connected to the high-frequency radiation unit for power feeding.
本发明采用上述技术解决方案所能达到的有益效果是：The beneficial effects that can be achieved by the present invention using the above technical solution are:
本发明采用主要由低频辐射单元、高频辐射单元和合路器构成的天线结构，合路器放置于低频辐射单元、高频辐射单元下面，对辐射单元进行连接和馈电，通过对合路器上面的微带网络进行设计和滤波处理，使天线具备良好的S参数指标；天线内部各部件独立而成，不需要通过同轴线进行连接，安装工艺方面都经过了细腻的优化，整体尺寸小，便于实现模块化和大批量自动化生产。The present invention adopts an antenna structure mainly composed of a low-frequency radiation unit, a high-frequency radiation unit and a combiner. The combiner is placed under the low-frequency radiation unit and the high-frequency radiation unit to connect and feed the radiation units. The microstrip network on the combiner is designed and filtered to enable the antenna to have good S parameter indicators. The internal components of the antenna are independent and do not need to be connected through a coaxial line. The installation process has been carefully optimized, the overall size is small, and it is easy to realize modularization and large-scale automated production.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本发明的结构示意图；Fig. 1 is a schematic structural diagram of the present invention;
图2为本发明的低频辐射单元结构示意图；FIG2 is a schematic diagram of the structure of a low-frequency radiation unit of the present invention;
图3为本发明的低频辐射单元结构示意图；FIG3 is a schematic diagram of the structure of a low-frequency radiation unit of the present invention;
图4为本发明的高频辐射单元结构示意图；FIG4 is a schematic diagram of the structure of a high-frequency radiation unit of the present invention;
图5为本发明的高频辐射单元结构示意图。FIG5 is a schematic diagram of the structure of the high-frequency radiation unit of the present invention.
附图标记说明：1、低频辐射单元 2、高频辐射单元 3、合路器。Explanation of the reference numerals: 1. low-frequency radiation unit 2. high-frequency radiation unit 3. combiner.
具体实施方式Detailed ways
以下结合具体实施例对本技术方案作详细的描述。The present technical solution is described in detail below in conjunction with specific embodiments.
如图1-图5所示，本发明是一种双频双极化小基站天线，覆盖频段范围是698MHz-960MHz和1710MHz-2700MHz，频段内增益达到8dBi以上，角度收敛，具有良好的水平面前后比特性。天线分为几个部分：一个低频辐射单元1，采用印刷板振子，使用巴伦平衡结构进行馈电，振子下面增加了耦合的塑料方块，目的在于优化天线驻波和隔离度指标，四个角增加了加载铜管，以增加天线带宽和优化天线辐射参数，低频单元直接放置于合路器上面；一个高频辐射单元2，同样使用印刷板振子，使用巴伦平衡结构进行馈电，振子四个角进行切割，目的在于调整天线带宽，增加回波损耗谐振点；一个一体化合路器3，合路器放置于低频辐射单元和高频辐射单元下面，对两个辐射单元进行连接和馈电，通过对合路器上面的微带网络进行设计和滤波处理，使天线具备良好的S参数指标。天线内部各部件独立而成，不需要通过同轴线进行连接，安装工艺方面都经过了细腻的优化，整体尺寸小，便于实现模块化和大批量自动化生产。本发明在结构上有了新的突破，关键电气指标优于业内产品，满足国内各大运营商公开招标要求。As shown in Figures 1 to 5, the present invention is a dual-frequency dual-polarization small base station antenna, covering a frequency band of 698MHz-960MHz and 1710MHz-2700MHz, with a gain of more than 8dBi in the frequency band, a convergent angle, and a good horizontal front-to-rear ratio characteristic. The antenna is divided into several parts: a low-frequency radiation unit 1, using a printed board vibrator, using a balun balance structure for feeding, adding a coupled plastic block under the vibrator, the purpose is to optimize the antenna standing wave and isolation index, adding a loading copper tube at the four corners to increase the antenna bandwidth and optimize the antenna radiation parameters, and the low-frequency unit is directly placed on the combiner; a high-frequency radiation unit 2, also using a printed board vibrator, using a balun balance structure for feeding, the four corners of the vibrator are cut, the purpose is to adjust the antenna bandwidth, increase the return loss resonance point; an integrated combiner 3, the combiner is placed under the low-frequency radiation unit and the high-frequency radiation unit, the two radiation units are connected and fed, and the antenna has good S parameter indicators by designing and filtering the microstrip network on the combiner. The internal components of the antenna are independent and do not need to be connected through coaxial lines. The installation process has been carefully optimized, and the overall size is small, which is convenient for modularization and mass automated production. The present invention has made new breakthroughs in structure, and its key electrical indicators are better than those of products in the industry, meeting the public bidding requirements of major domestic operators.
本发明与现有技术相比，能进行模块化生产，能够满足大部分特殊场景使用的小基站天线，本技术方案的广泛使用，将会大大推动天线产业的进步，为智能城市的建设奠定基础。Compared with the prior art, the present invention can be produced in a modular manner and can meet the needs of small base station antennas for most special scenarios. The widespread use of this technical solution will greatly promote the progress of the antenna industry and lay the foundation for the construction of smart cities.
以上所述的仅是本发明的优选实施方式，应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, which all fall within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711306134.6ACN108232433B (en) | 2017-12-11 | 2017-12-11 | Dual-frequency dual-polarized small base station antenna |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711306134.6ACN108232433B (en) | 2017-12-11 | 2017-12-11 | Dual-frequency dual-polarized small base station antenna |
| Publication Number | Publication Date |
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| CN108232433A CN108232433A (en) | 2018-06-29 |
| CN108232433Btrue CN108232433B (en) | 2024-07-05 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711306134.6AActiveCN108232433B (en) | 2017-12-11 | 2017-12-11 | Dual-frequency dual-polarized small base station antenna |
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| CN (1) | CN108232433B (en) |
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| TR01 | Transfer of patent right | Effective date of registration:20250430 Address after:528100 No. 4, Jinye Second Road, Southwest Industrial Park, Sanshui District, Foshan City, Guangdong Province (residence declaration) Patentee after:Guangdong Shenglu Communication Co.,Ltd. Country or region after:China Patentee after:GUANGDONG SHENGLU TELECOMMUNICATION TECH. Co.,Ltd. Address before:528100 No. 4 Jinye Second Road, Southwest Industrial Park, Sanshui District, Foshan City, Guangdong Province Patentee before:GUANGDONG SHENGLU TELECOMMUNICATION TECH. Co.,Ltd. Country or region before:China |