Title :
Application of the Arnoldi method in FEM analysis of waveguides
Author :
Mielewski, Jacek ; Mrozowski, Michal
Author_Institution :
Dept. of Electron., Telecommun. & Inf., Tech. Univ. Gdansk, Poland
fDate :
1/1/1998 12:00:00 AM
Abstract :
The authors present the application of the Arnoldi method to the solution of generalized nonsymmetric sparse eigen-problems which arise in the waveguide analysis involving the finite element method. To assess the efficiency of the Arnoldi method, the solution time is compared against the time required by the subspace iteration algorithm. It is found that the Arnoldi method converges much faster and gives significant CPU time savings
Keywords :
dielectric waveguides; eigenvalues and eigenfunctions; finite element analysis; waveguide theory; Arnoldi method; CPU time savings; FEM analysis; finite element method; nonsymmetric sparse eigen-problems; solution time; waveguide analysis; Eigenvalues and eigenfunctions; Finite element methods; Loaded waveguides; Matrix converters; Matrix decomposition; Partial differential equations; Software performance; Sparse matrices; Transmission line matrix methods; Waveguide components;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
