Title :
Iterative solution of a 3-D scattering problem from arbitrary shaped multidielectric and multiconducting bodies
Author_Institution :
Office Nat. d´´Etudes et de Recherches Aerospatiales, Chatillon, France
fDate :
7/1/1994 12:00:00 AM
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
