The application of Schur decomposition-based BCG solver in the solution of FEBI systems for inhomogeneous media

Author

Ping, Xuewei ; Cui, Tie Jun

Author_Institution

State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China

fYear

2009

fDate

27-29 Oct. 2009

Firstpage

943

Lastpage

946

Abstract

In this paper, the hybrid finite element/boundary integral/multilevel fast multipole algorithm (FEBI-MLFMA) is presented for the computation of scattering of inhomogeneous media. In order to solve the FEBI-MLFMA system efficiently, the Schur decomposition algorithm combined with multifrontal algorithm is used. And the Bi-conjugate gradient iterative is applied to solve the final equations. The efficiency of different iterative solvers is compared by simulating the scattering of a dielectric-conducting cylinder with FEBI-MLFMA in the final of the paper.

Keywords

boundary integral equations; computational electromagnetics; electromagnetic wave scattering; finite element analysis; gradient methods; inhomogeneous media; BCG solver; FEBI system; FEBI-MLFMA; Schur decomposition; biconjugate gradient iteration; dielectric conducting cylinder; hybrid finite element/boundary integral/multilevel fast multipole algorithm; inhomogeneous media scattering; Computational electromagnetics; Dielectrics; Electromagnetic compatibility; Electromagnetic scattering; Finite element methods; Integral equations; Iterative algorithms; MLFMA; Nonhomogeneous media; Solid modeling; BiCG; MLFMA; hybrid methods; inhomogeneous scattering problems;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2009 3rd IEEE International Symposium on

Conference_Location

Beijing

Print_ISBN

978-1-4244-4076-4

Type

conf

DOI

10.1109/MAPE.2009.5355804

Filename

5355804