基于高阶模的太赫兹回旋行波管研究  

Research on a Terahertz Gyro-TWT Based on High-order Mode

作　　者：毛涛涛 宋韬[1,2] 王维[1,2] 张开春[1,2] 刘頔威[1,2] MAO Tao-tao;SONG Tao;WANG Wei;LIU Di-wei(Terahertz Research Center,School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 610054,China;Key Laboratory of Terahertz Technology of the Ministry of Education,University of Electronic Science and Technology of China,Chengdu 610054,China)

机构地区：[1]电子科技大学电子科学与工程学院太赫兹研究中心,四川成都610054 [2]电子科技大学太赫兹技术教育部重点实验室,四川成都610054

出　　处：《真空电子技术》2024年第4期1-4,10,共5页Vacuum Electronics

基　　金：国家自然科学基金项目(62371092、61988102、61921002和62101106);中央高校基本科研业务费专项资金资助(ZYGX2020ZB008和ZYGX2021J011);四川省博士后科学专项基金(TB2022039)。

摘　　要：回旋行波管作为电真空器件之一,兼具大功率、宽频带、高增益等特性,在无线通信、电子对抗、安检成像等领域具有广泛的应用前景。本文通过理论研究和粒子仿真(Particle in Cell,PIC)完成了G波段回旋行波管的优化设计,其采用周期性介质加载波导,工作模式为TE 02模。PIC仿真结果显示,当输入60 kV、3 A的电子注时,回旋行波管在215 GHz的输出功率为14 kW,对应效率和增益分别为7.7%和45 dB,3 dB带宽为9.5 GHz。The gyrotron traveling wave tube(Gyro-TWT)is one of vacuum electronic devices with the characteristics of high power,high gain and wide band.It has great application prospects in wireless communications,electronic countermeasures,security imaging and other fields.A G-band gyro-TWT operating at TE02 mode with periodic dielectric loaded(PDL)waveguide is designed with theoretical analysis and particle in cell(PIC)simulation.The PIC simulation results show that with an input electron beam of 60 kV and 3 A,the output power of the gyro-TWT is 14kW at 215 GHz,the output efficiency is 7.7%,the saturated gain is 45 dB,and the 3 dB bandwidth is 9.5 GHz.

关 键 词：太赫兹 回旋行波管 周期介质加载 寄生振荡 

分 类 号：TN12[电子电信—物理电子学]