Numerical Computation of Dispersion Curves for Both Symmetric and Asymmetric Modes in Metal Coaxial Slow Wave Structures

被引：8

作者：

Chen, Siyao ^{[1
]}

Zhang, Jun ^{[1
]}

Zhang, Jiande ^{[1
]}

Zhang, Dian ^{[1
]}

Wang, Haitao ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Peoples R China

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2020年 / 67卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Asymmetric modes; dispersion equation; microwave; numerical computation; slow wave structures (SWSs);

D O I：

10.1109/TED.2019.2953608

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In the overmoded coaxial slow wave structures (SWSs), the asymmetric mode is easier to be excited by the electron beam. For conveniently studying the high frequency characteristics of coaxial asymmetric modes, we derive and solve the universal dispersion equation for both symmetric and asymmetric modes in coaxial SWSs. In principle, this numerical formula can be applied to arbitrary even-function SWSs, arbitrary corrugated depth and arbitrary transverse dimension. By this dispersion equation, the dispersion curves of asymmetric modes can be calculated more quickly and conveniently than the simulation software based on finite-element method.

引用

页码：322 / 327

页数：6

共 17 条

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