Linear theory of a dielectric-loaded rectangular Cerenkov maser with a sheet electron beam

Linear theory of a dielectric-loaded rectangular Cerenkov maser with a sheet electron beam
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片状电子束介质加载矩形切伦科夫脉泽的线性理论

DOI:
10.1088/1674-1056/21/10/104103
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发表时间:
2012-10
期刊:
影响因子:
1.7
通讯作者:
Wan Xiao-Sheng
Wan Xiao-Sheng
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Zhao Ding;Liu Wen-Xin;Wang Yong;Wan Xiao-Sheng

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本文提出了介质加载矩形切伦科夫脉塞与片状电子注注相互作用的三维模型。在此基础上,采用Borgnis势函数,采用场匹配法推导了混合模色散方程。在电子束为稀束流的假设下,得到了该方程的近似解。利用Ansoft高频结构仿真软件HFSS,给出了互作用结构中的电磁场分布。通过数值计算,详细分析了束层厚度、束层与介质层间距、束层电压和电流密度对共振生长速率的影响。
A three-dimensional model of a dielectric-loaded rectangular Cerenkov maser with a sheet electron beam for the beam-wave interaction is proposed. Based on this model, the hybrid-mode dispersion equation is derived with the Borgnis potential function by using the field-matching method. Its approximate solution is obtained under the assumption of a dilute electron beam. By using the Ansoft high frequency structural simulator (HFSS) code, the electromagnetic field distribution in the interaction structure is given. Through numerical calculations, the effects of beam thickness, beam and dielectric-layer gap distance, beam voltage, and current density on the resonant growth rate are analysed in detail.
DOI: 10.1002/mop.4650041108
发表时间: 1991-10
影响因子: 1.5
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发表时间: 1990-03
期刊: 1990 Plasma Science IEEE Conference Record - Abstracts
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