IE-FFT algorithm for a nonconformal volume integral equation for electromagnetic scattering from dielectric objects

被引：20
|
作者：
Ozdemir, Niltifer A. [1 ]
Lee, Jin-Fa [2 ]
机构：
[1] Univ Catholique Louvain, TELE, B-1348 Louvain, Belgium
[2] Ohio State Univ, Electrosci Lab, Columbus, OH 43212 USA
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2008年 / 44卷 / 06期
关键词：
electromagnetic scattering; fast Fourier transform (FFT); fast methods; Green's function; interpolation; method of moments (MoM); nonconformal volume integral equation (VIE);
D O I：
10.1109/TMAG.2008.915842
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This study extends the integral equation fast Fourier transform (IE-FFT) algorithm to the method of moments solution of a nonconformal volume integral equation. The algorithm relies on the interpolation of Green's function by Lagrangian polynomials on a uniform Cartesian tensor grid. Hence, the matrix-vector product in the iterative solver can be computed via the fast Fourier transform. The memory requirement and the computational complexity of the algorithm tend to stay close to O(N) and O(NlogN), respectively, where N is the number of unknowns.
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页码：1398 / 1401
页数：4
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