The BCGS-FFT method for electromagnetic scattering from inhomogeneous objects in a planarly layered medium

Author

Xu, Xue Min ; Liu, Qing H.

Author_Institution

Dept. of Electr. & Comput. Eng., Duke Univ., Durham, NC, USA

Volume

1

Issue

1

fYear

2002

fDate

6/24/1905 12:00:00 AM

Firstpage

77

Lastpage

80

Abstract

An iterative method, the stabilized biconjugate gradient fast Fourier transform (BCGS-FFT) method, combined with the FFT is developed for solving electromagnetic (EM) scattering from inhomogeneous objects embedded in a planarly layered medium. The CPU time and memory cost of this BCGS-FFT method is O(NlogN) and O(N), respectively, significantly more efficient than both direct and iterative solutions of the method of moment. As a result, this method is capable of solving large-scale EM scattering problems in a planarly layered background.

Keywords

conjugate gradient methods; electromagnetic wave scattering; fast Fourier transforms; inhomogeneous media; iterative methods; BCGS-FFT method; FFT; electromagnetic scattering; inhomogeneous objects; iterative method; planarly layered medium; stabilized biconjugate gradient fast Fourier transform method; Costs; Dielectrics; Electromagnetic scattering; Fast Fourier transforms; Integral equations; Iterative methods; Large-scale systems; Moment methods; Shape;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2002.802549

Filename

1046123