Title :
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
fDate :
6/24/1905 12:00:00 AM
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;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2002.802549
