强激光与粒子束2024，Vol.36Issue(9)：37-43,7.DOI:10.11884/HPLPB202436.240145
基于TM03模式的V波段同轴渡越时间振荡器设计
Design of V-band coaxial transit time oscillator with TM03 mode
摘要
Abstract
Increasing frequency is always an important development direction of high power microwave(HPM).However,as the frequency increases,the volume of an HPM device decreases rapidly and so does the power handling capacity(PHC).For obtaining reasonable PHC,the design of a V-band coaxial transit time oscillator(TTO)based on TM03 mode is carried out to achieve low surface field in this paper.The slow wave structure(SWS)having a large radial width with TM03 mode in such a device designed will lead to low risk of both electric field breakdown and pulse shortening.Firstly,the synchronous effect of velocity between microwave and electron beam is achieved by calculation of dispersion curve and coupling impedance.Then,small group velocity and high coupling impedance are designed to make TM03 a dominant mode in the coaxial V-band TTO.Finally,under the condition of 440 kV and 5 kA,an HPM is generated to reach an output power of 440 MW with a low surface electric field of 1.6 MV/cm,a microwave frequency of 62.25 GHz,and a beam-to-wave efficiency of 22%from numerical simulation.关键词
功率容量/TM03 模式/V波段/渡越时间振荡器/低表面场强Key words
power handling capacity/TM03 mode/V-band/transit time oscillator/low surface electric field分类
信息技术与安全科学引用本文复制引用
曾繁博,张建德,贺军涛,令钧溥..基于TM03模式的V波段同轴渡越时间振荡器设计[J].强激光与粒子束,2024,36(9):37-43,7.基金项目
国家自然科学基金项目(12345678) （12345678）
国家高技术发展计划项目 （）
