Symmetrical coupling wave-guided wave power synthesis amplifier

Abstract

The invention provides a symmetrical coupling wave-guided wave power synthesis amplifier, which comprises an input waveguide, an output waveguide, multi-stage coupling structures connected with the input waveguide and the output waveguide respectively, and multi-stage amplifiers correspondingly connected with the multi-stage coupling structures one by one, wherein the multi-stage coupling structures are vertically arranged in a traveling-wave direction of the input waveguide and the output waveguide, and each stage of the coupling structure is provided with a plurality of coupling units; a matching element is arranged at each stage of coupling structure except for the final stage of the coupling structure; and the micro-wave power input from the input waveguide is orderly fed into the plurality of coupling units in the multi-stage coupling structures in certain proportion. The power synthesis amplifier can provide the high-power output of high-end and millimeter wave bands of the microwave, meet the requirements of various communication and electronic systems, and solve the problems that the conventional power synthesis amplifier has less synthesis approach, narrower bandwidth and the like at high-end or millimeter wave bands of the microwave.

Description

technical field [0001] The invention relates to a solid-state power amplifier for microwave and millimeter wave systems, in particular to a waveguide traveling wave power synthesis amplifier based on a symmetrical coupling structure. Background technique [0002] In microwave and millimeter wave electronic systems, the use of power amplifiers to achieve high power output plays a vital role. Although traditional klystron and traveling wave tube power amplifiers can provide higher output power, in addition to the difficulty in process realization, there are also specific problems in application, such as high working voltage (tens of kilovolts), reliability Low, large device size, weight, plus an expensive defect, which limits its widespread use in microwave and millimeter wave communication systems. Microwave and millimeter wave solid-state devices have the advantages of low DC power consumption, high reliability, compact circuit structure, small size and light weight, so the...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the existing waveguide traveling wave power synthesis structure, such as fewer synthesis channels and narrower bandwidth, and provide a symmetrically coupled waveguide traveling wave power synthesis amplifier, which can provide microwave high-end and millimeter wave band High-power output, suitable for various communication and electronic systems, and solves the problems of existing power synthesis amplifiers in microwave high-end or millimeter wave bands with few synthesis channels and narrow bandwidth

Images