An Octal Microstrip-Rectangular Waveguide Power Combiner

Abstract

In order to overcome the problems that the isolation degree and the matching performance of all input ports of a traditional power combiner are not ideal, and the application requirements cannot be met, the invention provides an eight-path microstrip-rectangular waveguide power combiner, wherein the power combiner is composed of two nine-port networks E and a three-port network D in a cascading mode; and each network E is composed of two three-port networks A, a four-port network B and a five-port network C in a cascading mode. According to the invention, two types of transmission lines of aninput microstrip line and a rectangular waveguide are adopted, the front-stage feed end adopts the input microstrip line, and the size is compact, so that the radiation loss is reduced; the compression rectangular waveguide is adopted for the post-stage synthesis, so that the power capacity and the transmission efficiency are ensured, and the miniaturization of the combiner is realized in a front-and-back stage, so that it is ensured that the structure is compact, the power capacity is high, the isolation degree is high, and the transmission efficiency is high.

Description

technical field [0001] The invention relates to an eight-way microstrip-rectangular waveguide power combiner. Background technique [0002] With the continuous development of solid-state active circuits, the power generated by a single power amplifier gradually changes from low frequency to high frequency, from small power to high power. In practical applications, in order to increase the output power of the active module, it is usually necessary to perform power synthesis on multiple power amplifier devices. The high isolation between each input port and the good matching characteristics of the input port can improve the synthesis stability, reduce the crosstalk of active devices, and avoid unstable situations such as active oscillation. However, the isolation and matching performance between the input ports of the traditional power combiner are usually not ideal, which cannot meet the application requirements. Contents of the invention [0003] In order to overcome the...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the technical problem that the isolation and matching performance of each input port of the traditional power combiner is not ideal and cannot meet the application requirements, the present invention proposes an eight-way microstrip-rectangular waveguide power combiner

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