太赫兹科学与电子信息学报2024，Vol.22Issue(8)：835-841,7.DOI:10.11805/TKYDA2023299
基于大回旋电子注的高次谐波回旋行波管
High-order harmonic Gyrotron Traveling Wave Tubes with large orbit electron beams
摘要
Abstract
Gyrotron Traveling Wave Tubes(Gyrotron-TWT)have both high power and broadband characteristics,which have broad application prospects in important military fields such as millimeter wave detection and imaging radar,electronic countermeasures,etc.The gyrotron traveling wave amplifier with large orbit electron beams can operate in high-order harmonic state,greatly reducing the operating magnetic field and even achieving superconducting free operation.It can improve the flexibility and maneuverability of Gyrotron-TWT.This paper optimizes and designs a Ka band second harmonic Gyrotron-TWT with large orbit electron beams,which adopts a longitudinal slot interaction high-frequency structure with dielectric loading to effectively suppress backwave oscillation and improve the stability of device operation.The process of beam wave interaction in the Gyrotron-TWT was simulated by using three-dimensional particle simulation software.The results show that at the condition of the electron beam voltage of 70 kV,the current of 6.5 A,the magnetic field can be reduced to 0.642 T,the corresponding output power can reach 106.5 kW,the bandwidth is 2.1 GHz,and the maximum gain is 35 dB.关键词
回旋行波管/高功率/大回旋电子注/雷达Key words
Gyrotron-Traveling Wave Tubes/high power/large orbit electron beams/radar分类
信息技术与安全科学引用本文复制引用
赵其祥,雷朝军,于新华,高东硕,王峨锋,曾旭,冯进军..基于大回旋电子注的高次谐波回旋行波管[J].太赫兹科学与电子信息学报,2024,22(8):835-841,7.基金项目
国家自然科学基金资助项目(62361019 （）
62001280) （）
