Fast and accurate analysis of scattering from anisotropic surface impedance objects

Author

Kedi Zhang ; Jian-Ming Jin

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA

fYear

2014

fDate

6-11 July 2014

Firstpage

2146

Lastpage

2147

Abstract

A well-conditioned surface integral equation (SIE) is formulated to accurately simulate electromagnetic scattering from anisotropic surface impedance objects. The parallelized multilevel fast multipole algorithm (MLFMA) and sparse approximate inverse (SAI) preconditioner are implemented to reduce the computational complexity and improve iterative convergence for large complex targets, respectively. Numerical results indicate that an excellent accuracy and fast convergence are achieved.

Keywords

anisotropic media; computational complexity; convergence of numerical methods; electromagnetic wave scattering; integral equations; iterative methods; surface impedance; MLFMA; SAI; SIE; anisotropic surface impedance objects; computational complexity reduction; electromagnetic scattering simulation; iterative convergence; large complex targets; parallelized multilevel fast multipole algorithm; scattering analysis; sparse approximate inverse preconditioner; surface integral equation; Electromagnetic scattering; Impedance; Integral equations; MLFMA; Perpendicular magnetic anisotropy; Surface impedance;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE

Conference_Location

Memphis, TN

ISSN

1522-3965

Print_ISBN

978-1-4799-3538-3

Type

conf

DOI

10.1109/APS.2014.6905400

Filename

6905400