A Broadband Power Combiner with Filtering Properties
A technology of filtering characteristics and power combiner, which is applied in the field of radio frequency and microwave, can solve the problems of increasing circuit loss, increasing the overall size of the system, unfavorable circuit design cost, etc., and achieve the effect of reducing insertion loss
Active Publication Date: 2022-07-29
LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
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Problems solved by technology
[0004] In the power distribution / combination network, in order to improve the selective suppression of harmonics in the system, an additional filter is required to eliminate noise, interference and harmonics caused by nonlinear devices, but this will increase the overall size of the system , and it will also increase the loss of the circuit, which is also unfavorable to the cost of the circuit design
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[0023] In order to make the objectives, technical solutions and advantages of the implementation of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application. Throughout the drawings, the same or similar reference numbers refer to the same or similar elements or elements having the same or similar functions. The described embodiments are some, but not all, embodiments of the present application. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present application, but should not be construed as a limitation to the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present...
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The application belongs to the field of radio frequency microwave technology, and in particular relates to a broadband power combiner with filtering characteristics. The broadband power combiner includes a first microstrip line, one end of which is connected to the first port, the other end is connected to the starting ends of two parallel power division modules, and the end of any power division module is connected to a second microstrip line through a filter module. Strip line, any second microstrip line is connected to a second port, when the first port is used as an input end, the two second ports are output ends, wherein the filter module includes a short-circuit coupling line and a transmission line, and the transmission line includes and power The first end connected to the sub-module and the second end connected to the second microstrip line, the short-circuit coupling line includes two microstrip structures respectively starting from two ends of the transmission line and extending toward the intersection area. The invention can replace the cascade connection of the power combiner and the filter in the microwave circuit system, eliminates the use of the back-end filter connected to the power combiner, reduces the insertion loss of the circuit, reduces the volume of the circuit and saves the cost.
Description
technical field [0001] The present application belongs to the field of radio frequency microwave technology, and in particular relates to a broadband power combiner with filtering characteristics. Background technique [0002] Filters and power dividers are important components in radio frequency and microwave communication systems. The filter is a two-port network with frequency selection characteristics, that is, the signal in the passband can be transmitted without attenuation, and the signal in the stopband can be transmitted without attenuation. Completely incapable of transmission. The power divider is a multi-port passive microwave device, and its function is to distribute the input signal power to each output port according to a certain proportion. The power divider can also be used as a power combiner in reverse, through which the microwave signals can be superimposed to obtain the required output power. [0003] The existing microstrip power combiners mostly use ...
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IPC IPC(8): H01P5/16
CPCH01P5/16
Inventor 王浪吕高庆刘建伟
Owner LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA