紧凑型圆-矩形波导模式变换器的设计与实验研究

Design and experiment study of compact circular-rectangular waveguide mode converter.

作者信息

Zhao Xuhao, Yuan Chengwei, Zhang Qiang, Zhao Lishan

机构信息

College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073, China.

出版信息

Rev Sci Instrum. 2016 Jul;87(7):074707. doi: 10.1063/1.4959108.

DOI:10.1063/1.4959108

PMID:27475581

Abstract

A compact mode converter that transforms TM01 circular waveguide mode to TE10 rectangular waveguide mode is investigated. It consists of a circular waveguide with a short circuit terminal and a rectangular waveguide which is perpendicular to the circular waveguide. Simulation results show that conversion efficiency of the mode converter is about 99.8% at central frequency of 1.75 GHz, and the total return loss is approximately -30 dB. The experimental results are well consistent with the computer simulation, which demonstrates the feasibility and high power handling capacity of the mode converter.

摘要

研究了一种将TM01圆波导模式转换为TE10矩形波导模式的紧凑型模式转换器。它由一个带有短路终端的圆波导和一个与圆波导垂直的矩形波导组成。仿真结果表明，该模式转换器在1.75GHz中心频率下的转换效率约为99.8%，总回波损耗约为-30dB。实验结果与计算机仿真结果吻合良好，证明了该模式转换器的可行性和高功率处理能力。