Three-dimensional FE modeling of slow-wave structure for traveling-wave tube without matching meshes

Author

Li Xu ; Zhonghai Yang ; Jianqing Li ; Bin Li

Author_Institution

Nat. Key Lab. of Sci. & Technol. on Vacuum Electron. Sch. of Phys. Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2013

fDate

21-23 May 2013

Firstpage

1

Lastpage

2

Abstract

A novel three-dimensional finite-element (FE) modeling technique without matching meshes for the eigenmode analysis of arbitrary lossy slow-wave structures (SWSs) of traveling-wave tubes (TWTs) is presented. By simulating many examples, it is shown that the cold parameters of SWSs can be accurately and quickly obtained without matching meshes when using this technique. This technique would make the modeling of SWSs more flexible, cheaper and more efficient.

Keywords

eigenvalues and eigenfunctions; finite element analysis; slow wave structures; SWS; TWT; arbitrary lossy slow-wave structures; cold parameters; eigenmode analysis; three-dimensional FE modeling; three-dimensional finite-element modeling technique; traveling-wave tube; Attenuation; Dispersion; Electron tubes; Finite element analysis; Iron; Periodic structures; Solid modeling; Cold parameters; finite-element modeling; nonmatching mesh; slow-wave structure; traveling-wave tube;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference (IVEC), 2013 IEEE 14th International

Conference_Location

Paris

Print_ISBN

978-1-4673-5976-4

Type

conf

DOI

10.1109/IVEC.2013.6571156

Filename

6571156