Design of W-band sheet beam travelling wave tubes based on staggered double vane slow wave structure

The Journal of Engineering

Zhanliang Wang¹  Hanwen Tian²  Wei Shao³ 

[1] Beijing Vacuum Electronics Research Institute , Beijing , People'National Key Laboratory of Science and Technology on Vacuum Electronics, University of Electronic Science and Technology of China , No. 4, Section 2, North Jianshe Road, Chengdu , People's Republic of China

关键词: beam–wave interaction;    CST Particle Studio;    power 1100.0 W;    power 1200.0 W;    vacuum window;    W-b;    sheet beam travelling wave tubes;    frequency 95.0 GHz;    frequency 99.0 GHz;    HFSS;    phase velocity taper;    magnetic focusing system;    sheet electron beam gun;    transposition characteristics;    power 10.0 W;    dispersion characteristics;    gain 20.41 dB;    high-frequency system;    voltage 20.6 kV;    staggered double vane slow wave structure;    periodically cusped magnetic focusing system;    CST Microwave Studio;    current 80.0 mA;   

DOI  :  10.1049/joe.2018.0103

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

In this study, a complete and viable plan about a W-band sheet beam travelling wave tube based on a staggered double vane slow wave structure is drawn up. The dispersion characteristics, transposition characteristics of high-frequency system, sheet electron beam gun, vacuum window, periodically cusped magnetic focusing system and beam–wave interaction are analysed by CST Microwave Studio, CST Particle Studio and HFSS. An attenuator is used in this device to suppress oscillation. A phase velocity taper is used to increase output power. The operation voltage is 20.6 kV and the current is 80 mA. With a 10 W input power, the output power is 1100 W versus the gain is 20.41 dB at 95 GHz. The peak amplitude approaches 1200 W versus the gain approaches 20.79 dB at 99 GHz.

【 授权许可】

CC BY