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期刊论文
SSOR preconditioned GMRES for the FEM analysis of waveguide discontinuities with anisotropic dielectric
Int. J. Numer. Model. 2004; 17: 105-118,-0001,():
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.
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