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Integral equation domain decomposition method for solving electromagnetic wave scattering from non-penetrable objects

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3 Author(s)
Zhen Peng ; ElectroScience Lab., ECE Department, OSU, 1320 Kinnear Rd., Columbus, OH 43212, USA ; Xiao-Chuan Wang ; Jin-Fa Lee

The integral equation (IE) method is commonly used to model time-harmonic electromagnetic (EM) phenomena. One of the major challenges in its application arises in the solution of the resulting ill-conditioned matrix equations. Here, we introduce a new domain decomposition (DD) based iterative method for the IE solution of time-harmonic electromagnetic problems. There are two major ingredients in the proposed IE-DDM: (a) the method is a type of non-overlapping DD method and provides a computationally efficient and effective preconditioner for the dense matrix equation from the IE method; and, (b) The presented method is very suitable for dealing with multi-scale EM problems. Each sub-domain has its own characteristics length and will be meshed independently from others. Numerical results demonstrate superior performance of the IE-DDM.

Published in:

Electromagnetics in Advanced Applications (ICEAA), 2010 International Conference on

Date of Conference:

20-24 Sept. 2010