Electromagnetic Potentials and Field Expansions for Plasma Radiation in Waveguides
Electromagnetic Potentials and Field Expansions for Plasma Radiation in Waveguides
复制标题
波导中等离子体辐射的电磁势和场扩展
DOI：
10.1109/tmtt.1965.1126021
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发表时间：
1965
影响因子：
4.3
通讯作者：
R. Collin
中科院分区：
文献类型：
--
作者：
R. Collin
为了计算波导中等离子体的辐射，必须知道带电粒子在波导中任意运动所产生的场。本文导出了任意运动的带电粒子在波导中的矢量势和标量势的模式展开式，并将Lienard-Wiechert势推广到波导环境中。此外，对于等离子体填充波导，给出了电场直接与电荷运动模式耦合的模式展开式。给出了辐射的光谱分布的表达式，一般和回旋辐射。还给出了矩形波导中回旋运动激发的H/sub 10/模的一些具体结果。
In order to calculate the raditaion from plasmas placed in waveguides it is necessary to know the field produced by arbitrarily moving charged particles in a waveguide. In this paper modal expansions for the vector and scalar potentials due to arbitrarily moving charged particles in a waveguide are derived and provide the extension of the Lienard-Wiechert potentials to a waveguide environment. In addition, for a plasma filled waveguide, a modal expansion is given of the electric field directly in terms of mode coupling with the charge motion. Expressions for the spectral distribution of the radiation are given, both in general and for cyclotron radiation. Some specific results for the H/sub 10/ mode excited in a rectangular guide by cyclotron motion are also presented.