Ka波段大回旋电子注介质加载回旋行波管输入耦合器研究  

Research on an Input Coupler for a Ka-band Large-orbit Gyro-TWT with Dielectric-loaded Waveguide

作　　者：杨锦涛 王峨锋[1] 雷子涵 曾旭[1] 高东硕 冯进军[1] YANG Jin-tao;WANG E-feng;LEI Zi-han;ZENG Xu;GAO Dong-shuo;FENG Jin-jun(National Key Laboratory of Science and Technology on Vacuum Electronics,Beijing Vacuum Electronics Research Institute,Beijing 100015,China)

机构地区：[1]中国电子科技集团公司第十二研究所微波电真空器件国家级重点实验室,北京100015

出　　处：《真空电子技术》2024年第3期53-56,75,共5页Vacuum Electronics

摘　　要：针对Ka波段大回旋电子注回旋行波管设计了一个TE 21模式输入耦合器。该输入耦合器结构为Y形功分器,将输入的矩形波导TE 10模式转换为圆波导的TE 21模式进行输出。本文对其转换原理进行了简要介绍,通过仿真确定了输入耦合器模型的参数,并加工出部件,并进行了实际测试,测试的结果满足Ka波段大回旋行波管的信号输入要求。An input coupler for a Ka-band large-orbit gyrotron traveling-wave tube(gyro-TWT)is designed.The input coupler is a Y-type converter,which transforms the TE 10 mode in rectangular waveguide into the TE 21 mode in circular waveguide.The transformation theory of it is briefly introduced,the parameters are determined through simulation and a prototype is fabricated and tested.The test result meets the input requirements for the Ka-band large-orbit gyro-TWT.

关 键 词：Ka波段大回旋行波管 输入耦合器 模式转换器 S 21参数 

分 类 号：TN129[电子电信—物理电子学]