DocumentCode :
1156126
Title :
Fast solution of mixed dielectric/conducting scattering problem using volume-surface adaptive Integral method
Author :
EWE, Wei-Bin ; Li, Le-Wei ; Leong, Mook-Seng
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore
Volume :
52
Issue :
11
fYear :
2004
Firstpage :
3071
Lastpage :
3077
Abstract :
This paper presents the adaptive integral method utilized to solve scattering problems of mixed dielectric and conducting objects using volume-surface integral equation. The scattering problem is formulated using volume integral equation and surface integral equation for dielectric material object and conducting object, respectively. The combined field integral equation is formulated to treat closed conducting surfaces. The method of moments is applied to discretize the integral equations. The resultant matrix system is solved by an iterative solver where the adaptive integral method is employed to accelerate the matrix-vector multiplication. The block diagonal preconditioner is implemented to further accelerate the convergence of the present solution. Numerical results are presented to demonstrate the accuracy and efficiency of the technique.
Keywords :
conducting bodies; convergence; dielectric bodies; dielectric materials; electromagnetic wave scattering; fast Fourier transforms; integral equations; iterative methods; matrix multiplication; method of moments; FFT; MoM; block diagonal preconditioner; combined field integral equation; conducting object; conducting surface; convergence; dielectric material object; electromagnetic scattering; fast Fourier transform; iterative solver; matrix system; matrix-vector multiplication; method of moment; mixed dielectric-conducting scattering problem; scattering problem; volume-surface adaptive integral method; volume-surface integral equation; Acceleration; Computational complexity; Conductors; Dielectric materials; Electromagnetic scattering; Fast Fourier transforms; Integral equations; Matrix converters; Moment methods; Surface treatment; 65; Adaptive integral method; FFT; MoM; electromagnetic scattering; fast Fourier transform; method of moments; preconditioner;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.2004.835147
Filename :
1353505
Link To Document :
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