Three-dimensional Finite-element Analysis of Conductivity and Dielectric Attenuation in Arbitrary Slow-wave Structure of Traveling-wave Tubes
Xu Li Yang Zhong-hai Li Jian-qing Li Bin
National Key Laboratory of Science and Technology on Vacuum Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
Abstract：This paper presents a novel 3-D finite-element analysis method for arbitrary lossy Slow-Wave Structure (SWS) of the traveling-wave tube. In this analysis method, a new Frequency-Specified Eigenmode Analysis (FSEA) for SWSs is proposed and utilized. Unlike the traditional phase-advance-specified eigenmode analysis for SWSs which has to solve a nonlinear Generalized Eigenvalue Problem (GEP), the new FSEA approach only needs solving a linear GEP and is capable of obtaining the attenuation constant more accurately and directly without any post-processing when simulating the lossy SWSs.
徐立, 杨中海, 李建清, 李斌 . 任意行波管慢波结构中导体和介质损耗的三维有限元分析[J]. 电子与信息学报, 2012, 34(8): 2028-2032.
Xu Li, Yang Zhong-Hai, Li Jian-Qing, Li Bin . Three-dimensional Finite-element Analysis of Conductivity and Dielectric Attenuation in Arbitrary Slow-wave Structure of Traveling-wave Tubes. , 2012, 34(8): 2028-2032.
2012, Vol. 34 
