Numerical simulation of a W-band four-cavity gyroklystron amplifier

被引：8
|
作者：
Xu, Shou-Xi [1 ]
Liu, Pu-Kun [1 ]
Geng, Zhi-Hui [1 ]
机构：
[1] Chinese Acad Sci, Key Lab High Power Microwave Sources & Technol, Inst Elect, Beijing 100190, Peoples R China
来源：
PHYSICS OF PLASMAS | 2012年 / 19卷 / 03期
关键词：
AVERAGE POWER; GYROTRON; 3-CAVITY;
D O I：
10.1063/1.3685728
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Using a self-consistent nonlinear code and particle-in-cell simulation, the beam-wave interaction of a W-band four-cavity gyroklystron amplifier has been analyzed. The gyroklystron amplifier operates in the fundamental harmonic TE01 circular electric mode. The dependence of the efficiency and gain on the input power and the electron velocity ratio are studied. The effect of the electron velocity spread on the bandwidth and the electronic efficiency is analyzed. The simulated results show that the designed stable gyroklystron amplifier can produce an output power of over 142 kW, 33.8% electronic efficiency, 37 dB gain, and a 3 dB bandwidth of 1 GHz for a 70 kV, 6 A electron beam. (C) 2012 American Institute of Physics. [doi:10.1063/1.3685728]
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页数：5
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