新型弯折式圆波导高功率TE_(11)-TM_(01)模式转换器  

A new curved circular waveguide high power TE_(11)-TM_(01)mode converter

作　　者：张浩 何云 干莉 胡随 张忠海[1] ZHANG Hao;HE Yun;GAN Li;HU Sui;ZHANG Zhonghai(School of Electronic Information,Hangzhou Dianzi University,Hangzhou Zhejiang 310018,China;National Key Laboratory of Blind Signal Processing,Chengdu Sichuan 610041,China)

机构地区：[1]杭州电子科技大学电子信息学院,浙江杭州310018 [2]盲信号处理国家级重点实验室,四川成都610041

出　　处：《杭州电子科技大学学报（自然科学版）》2022年第4期13-18,共6页Journal of Hangzhou Dianzi University：Natural Sciences

基　　金：国家电磁环境重点实验室资助项目(JCKY2020210C614240304)。

摘　　要：设计一款应用于高功率微波传输的插板弯折式圆波导TE_(11)-TM_(01)模式转换器,其上半部分圆波导呈弯折型,下半部分为半圆直波导。首先,半圆波导TE_(11)模经过弯折结构移相,满足TM_(01)模模式合成的相位差条件后,进行模式转换;然后,利用十字型金属插板结构合成为圆波导的TM_(01)模输出。仿真结果表明,频率为8.254 GHz时,由TE_(11)模式转换为TM_(01)模式的转换效率最大,为98.4%,TE_(11)-TM_(01)模式转换效率大于90.0%的带宽为80.5 MHz,功率容量大于2 MW。TE_(11)-TM_(01) mode converter is designed for high power microwave transmission.The upper part of the circular waveguide is curved,and the lower part is semi-circular straight waveguide.Firstly,the semi-circular waveguide TE_(11) mode is shifted by bending structure,and mode conversion is carried out when the phase difference condition of TM_(01) mode synthesis is satisfied.Secondly,TM_(01) mode output of circular waveguide is synthesized by cross metal plate structure.The simulation results show that when the frequency is 8.254 GHz,the conversion efficiency from TE_(11) mode to TM_(01) mode is the largest,the conversion efficiency from TE_(11) mode to TM_(01) mode is 98.4%,the bandwidth of TE_(11)-TM_(01)mode conversion efficiency greater than 90.0%is 80.5 MHz,the power capacity is greater than 2 MW.

关 键 词：高功率微波 弯折型 模式转换器 圆波导 

分 类 号：TN814[电子电信—信息与通信工程]