Characteristic of X-band coaxial double-gap output cavity of klystron amplifier

被引：2
|
作者：
Liu Z. [1 ,2 ]
Huang H. [2 ]
Jin X. [2 ]
Chen H. [1 ]
机构：
[1] Department of Engineering Physics, Tsinghua University
[2] High Power Microwave Laboratory, Institute of Applied Electronics, CAEP, Mianyang 621900
来源：
Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams | 2011年 / 23卷 / 08期
关键词：
Coaxial double-gap output cavity; Particle-in-cell simulation; Relativistic klystron amplifier; X-band;
D O I：
10.3788/HPLPB20112308.2162
中图分类号：
学科分类号：
摘要：
With 3D full electromagnetic particle-in-cell code, an X-band coaxial double-gap output cavity of klystron amplifier has been designed and simulated. It is found that the microwave extraction power and efficiency is increased by employing the coaxial double-gap output cavity. The relation between output power and modulation depth of current, and the relation between output power and the distance from electron beam outer radius to drifting wall are obtained. Furthermore, the relation between output power and DC transitional angle is presented. A 1.2 GW averaged power over the oscillator period is generated by simulation with 600 kV electron beam voltage, 5 kA current, 100% modulation depth of current and 1 T leading magnetic field density. The peak frequency is 9.37 GHz and the efficiency is 40%.
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页码：2162 / 2166
页数：4
相关论文
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