Title :
Scattering of 3D Dielectric Body by GMRES and LGMRES Weak-Form FFT Methods
Author :
Fan, Z.H. ; Yung, Edward K N ; Rui, P.L. ; Chen, R.S.
Author_Institution :
City Univ. of Hong Kong
Abstract :
This paper aims to develop a fast and robust algorithm for three-dimensional problems, especially for large-permittivity case. We adopt the generalized minimum residual (GMRES) and loose GMRES to replace the CG or BCG method to solve the integral equation, and investigate their efficiency in the application. We show that all methods produce accurate results and when the contrast is high, the loose GMRES has a superior behavior among the different iterative methods
Keywords :
dielectric bodies; electromagnetic wave scattering; fast Fourier transforms; integral equations; iterative methods; permittivity; 3D dielectric body; GMRES weak-form FFT methods; LGMRES weak-form FFT methods; fast Fourier transform; integral equation; iterative methods; loose generalized minimum residual; scattering; Argon; Dielectrics; Fast Fourier transforms; Gallium nitride; Integral equations; Iterative methods; Moment methods; Nonuniform electric fields; Permittivity; Scattering;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1711519
