Preconditioned Generalized Minimal Residual Iterative Scheme For Perfectly Matched Layer Terminated - IEEE Microwave and Guided Wave Letters
نویسندگان
چکیده
The anisotropic 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 affected. To address this issue, we examine the generalized minimal residual (GMRES) solver for solving finite-element systems terminated with PML. A strong approximate inverse preconditioner (AIPC) is coupled with a GMRES solver to speed up convergence and consequently reduce the overall CPU time.
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