Title :
A fast and efficient multigrid eigensolver for modeling microwave tubes using hierarchical vector finite elements
Author :
Xu, Li ; Ye, Zhen ; Yang, Zhonghai ; Li, Jianqing ; Li, Bin
Author_Institution :
Vacuum Electron. Nat. Lab., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
This paper presents the application of hierarchical vector finite element method (FEM) with second-order basis for modeling slow-wave structures (SWSs) in microwave tubes, and consequently, a robust, fast and efficient multigrid eigensolver (MGES) is developed to simulate the SWSs.
Keywords :
eigenvalues and eigenfunctions; finite element analysis; microwave tubes; slow wave structures; hierarchical vector finite elements; microwave tubes; multigrid eigensolver; slow-wave structures; Computational modeling; Electron tubes; Equations; Finite element methods; Hybrid fiber coaxial cables; Mathematical model; Microwave theory and techniques; Finite-element method (FEM); hierarchical basis; microwave tubes; multigrid method; slow-wave structure;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2011 IEEE International
Conference_Location :
Bangalore
Print_ISBN :
978-1-4244-8662-5
DOI :
10.1109/IVEC.2011.5746904
