Title :
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
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;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2013 IEEE 14th International
Conference_Location :
Paris
Print_ISBN :
978-1-4673-5976-4
DOI :
10.1109/IVEC.2013.6571156
