Backward wave oscillators with rippled wall resonators: analytic theory and numerical simulation
Backward wave oscillators with rippled wall resonators: analytic theory and numerical simulation
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DOI：
10.1063/1.865209
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发表时间：
1985-09
影响因子：
4.6
通讯作者：
J. Swegle;J. Poukey;G. Leifeste
中科院分区：
文献类型：
--
作者：
J. Swegle;J. Poukey;G. Leifeste
本文对由强磁场引导的相对论电子束通过由壁半径正弦变化的圆柱形波导组成的慢波结构构成的返波振荡器进行了全面的理论处理。该分析同样适用于行波管的工作，包括小振幅扰动的线性化理论和饱和大振幅工作状态的数值模拟。详细研究了器件工作特性随系统参数的变化。与实验和额外的计算的分析和数值结果的比较显示出良好的一致性，并证明了高度的置信度的理论的有效性。
In this paper, a comprehensive theoretical treatment is developed for backward wave oscillators composed of a relativistic electron beam guided by a strong magnetic field through a slow wave structure consisting of a cylindrical waveguide with a sinusoidally varying wall radius. This analysis, equally applicable to traveling wave tube operation, includes both a linearized theory of small‐amplitude perturbations and numerical simulations of the saturated, large‐amplitude operating regime. The variation of device operating characteristics with system parameters is examined in detail. Comparisons of the analytic and numerical results with experiments and additional calculations show excellent agreement and justify a high degree of confidence in the validity of the theory.