Preconditioned generalized minimal residual iterative scheme for perfectly matched layer terminated applications

Author

Botros, Youssry Y. ; Volakis, John L.

Author_Institution

Radiation Lab., Michigan Univ., Ann Arbor, MI, USA

Volume

9

Issue

2

fYear

1999

fDate

2/1/1999 12:00:00 AM

Firstpage

45

Lastpage

47

Abstract

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

Keywords

electromagnetic wave scattering; finite element analysis; inverse problems; iterative methods; active properties; anisotropic properties; approximate inverse preconditioner; finite-element method; perfectly matched layer terminated applications; preconditioned generalized minimal residual iterative scheme; Absorption; Anisotropic magnetoresistance; Central Processing Unit; Convergence; Finite element methods; Geometry; Iterative methods; Microstrip; Perfectly matched layers; Robustness;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.755039

Filename

755039