0.85 THz truncated sine waveguide traveling-wave tube with sheet beam tunnel

The Journal of Engineering

Xuebin Jang¹  Shuanzhu Fang²  Jin Xu³ 

[1] Beijing Vacuum Electronics Research Institute , Beijing 100015 , People'National key Laboratory of Science and Technology on Vacuum Electronics , School of Physical Electronics, University of Electronic Science and Technology of China , No. 4, Section 2, North Jianshe Road, 610054 Chengdu , People's Republic of China

关键词: frequency 0.845 THz to 0.855 THz;    truncated sine waveguide traveling-wave tube;    eigenmode solver;    relatively large average coupling impedance;    3D electromagnetic simulation software Ansoft HFSS;    interaction impedances;    high-frequency simulation software CST;    dispersion properties;    truncated SWG slow wave structure;    sheet electron beam tunnel;    beam–wave interaction circuit characteristics;    particle-in-cell simulation;   

DOI  :  10.1049/joe.2018.0099

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

A sine waveguide (SWG) traveling-wave tube with sheet electron beam tunnel is proposed to amplify the high-frequency terahertz wave. In this study, the slow wave characteristics including the dispersion properties and interaction impedances have been investigated by using the eigenmode solver in the 3D electromagnetic simulation software Ansoft HFSS. The truncated SWG slow wave structure possesses the relatively large average coupling impedance. The beam–wave interaction characteristics of truncated SWG with sheet electron beam tunnel are calculated by high-frequency simulation software CST. From the particle-in-cell simulation results, this beam–wave interaction circuit can produce >490 mW ranging from 0.845 to 0.855 THz with a corresponding gain over 22 dB.

【 授权许可】

CC BY