红外与毫米波学报2020，Vol.39Issue(4)：422-429,8.DOI:10.11972/j.issn.1001-9014.2020.04.005
W波段低电压宽带过模矩形同轴曲折波导行波管的研究
Investigation of low-voltage broadband overmoded folded rectangular coaxial waveguide TWT at W-band
摘要
Abstract
To develop high frequency,broad bandwidth and low voltage traveling wave tube(TWT),the folded rectangular coaxial waveguide slow wave structure(FRCW-SWS)is proposed in this paper. Operating at over?moded condition,the proposed FRCW-SWS has relatively high operating frequency and acceptable transmission characteristics. A double ridge-loaded waveguide-to-coaxial-waveguide converter is designed and applied as the input/output coupler to incorporate the broadband characteristics of the FRCW-SWS. The hot performance of this overmoded FRCW-TWT at W-band is investigated using particle-in-cell(PIC)simulation. The simulation results indicate that the output power can be over 13. 7 W in the frequency range of 76～110 GHz,when the length of the SWS,the beam voltage and beam current are 32 mm,3230 V and 150mA,respectively. The maximal output power is about 27. 4 W at the frequency of 108 GHz,corresponding to the RF efficiency of 5. 65％.关键词
过模行波管/平面慢波结构/宽带放大器/同轴曲折波导Key words
overmoded traveling wave tube/planar slow wave structure/broadband amplifier/folded coaxial waveguide分类
信息技术与安全科学引用本文复制引用
许多,段兆云,魏彦玉,冯进军,宫玉彬,王少萌,邵伟,何腾龙,王禾欣,唐涛,巩华荣,路志刚,王战亮..W波段低电压宽带过模矩形同轴曲折波导行波管的研究[J].红外与毫米波学报,2020,39(4):422-429,8.基金项目
Supported by National Natural Science Foundation of China(61531010,61921002),the International Cooperating Project of Sichuan Province(2018HH0132),and the National Key Lab Foundation of China(9140A23010415DZ02001) （61531010,61921002）
