Iterative solution of a 3-D scattering problem from arbitrary shaped multidielectric and multiconducting bodies

Author

Soudais, Paul

Author_Institution

Office Nat. d´´Etudes et de Recherches Aerospatiales, Chatillon, France

Volume

42

Issue

7

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

954

Lastpage

959

Abstract

We present an iterative algorithm used for the computation of the scattering from arbitrary shaped bodies made of dielectric and conducting material. The harmonic problem is discretized by a hybrid boundary integral method/finite element method. To solve the discretized linear system, a modified version of a minimal residual algorithm has been developed for complex matrices. It takes into account the Lagrange multiplier constraint in a special way. This modified version also allows the linear system to be solved for many right-hand sides in an efficient manner

Keywords

boundary-elements methods; conductors (electric); dielectric properties of solids; electromagnetic wave scattering; finite element analysis; iterative methods; matrix algebra; 3-D scattering problem; Lagrange multiplier constraint; arbitrary shaped bodies; boundary integral method; complex matrices; conducting material; dielectric material; finite element method.; harmonic problem; hybrid BEM/FEM method; iterative algorithm; linear system; minimal residual algorithm; multiconducting bodies; multidielectric bodies; Assembly; Dielectrics; Electromagnetic scattering; Finite element methods; Integral equations; Iterative algorithms; Iterative methods; Linear systems; Radar scattering; Symmetric matrices;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.299597

Filename

299597