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SSOR preconditioned GMRES for the FEM analysis of waveguide discontinuities with anisotropic dielectric.
- Source :
- International Journal of Numerical Modelling; Mar/Apr2004, Vol. 17 Issue 2, p105-18, 14p, 4 Diagrams, 8 Graphs
- Publication Year :
- 2004
-
Abstract
- The anisotropic media and active properties of the perfectly matched layer (PML) absorbers significantly deteriorate the finite element method (FEM) system condition and as a result, convergence of the iterative solver is substantially slowed down. To address this issue, the symmetric successive over-relaxation (SSOR) preconditioning scheme is applied to the generalized minimal residual (GMRES) for solving a large sparse and non-symmetric system of linear equations resulting from the analysis of ferrite waveguide device by use of edge-based FEM. Consequently, this preconditioned GMRES (PGMRES) approach can reach convergence ten times faster than GMRES for the typical structures. Copyright © 2004 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]
- Subjects :
- WAVEGUIDES
ELECTRIC waves
DIELECTRICS
ANISOTROPY
FINITE element method
Subjects
Details
- Language :
- English
- ISSN :
- 08943370
- Volume :
- 17
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- International Journal of Numerical Modelling
- Publication Type :
- Academic Journal
- Accession number :
- 13507146
- Full Text :
- https://doi.org/10.1002/jnm.526