Design and simulation of the high-frequency structure for a G-band extended interaction klystron

The Journal of Engineering

Linlin Hu¹  Hongbin Chen²  Zaojin Zeng³ 

[1] Graduate School, China Academy of Engineering Physics , Beijing , People'Institute of Applied Electronics, China Academy of Engineering Physics , Mian Yang, Sichuan , People's Republic of China

关键词: power 100.0 W;    extended interaction klystron;    voltage 20.0 kV;    multiple resonant cavities;    G-b;    spectrum;    frequency 237.5 GHz;    ladder-type multigap structure;    power 125.0 W;    current 200.0 mA;    cloud radar;   

DOI  :  10.1049/joe.2018.0109

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

The G-band spectrum has been demonstrated to be the frequency of the next generation of space-borne and ground-based cloud radar for its higher spatial resolution. Extended interaction klystron (EIK) is one of the most suitable sources for the radar due to its longer lifetime and higher power compared with similar devices. The design and particle simulation of high-frequency structure for G-band EIK are presented in this study. The structure employs multiple resonant cavities, and each cavity adopts the ladder-type multi-gap structure. The cavities are operating at 2π mode considering the machinability. The simulation result indicates that the amplifier could generate a power of 125 W at 237.5 GHz when driven by a 20 kV, 200 mA round beam and 100 mW input power. This work will be of great potential to develop the G-band EIK with power above 100 W.

【 授权许可】

CC BY