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Fast and accurate solutions of electromagnetics problems involving lossy dielectric objects with the multilevel fast multipole algorithm

Ergul, O. (2012) Fast and accurate solutions of electromagnetics problems involving lossy dielectric objects with the multilevel fast multipole algorithm. Engineering Analysis with Boundary Elements, 36 (3). pp. 423-432. ISSN 0955-7997

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Abstract

Fast and accurate solutions of electromagnetic scattering problems involving lossy dielectric objects are considered. Problems are formulated with two recently developed formulations, namely, the combined-tangential formulation (CTF) and the electric and magnetic current combined-field integral equation (JMCFIE), and solved iteratively using the multilevel fast multipole algorithm (MLFMA). Iterative solutions and accuracy of the results are investigated in detail for diverse geometries, frequencies, and conductivity values. It is demonstrated that CTF solutions are significantly accelerated as the conductivity increases to moderate values and CTF becomes comparable to JMCFIE in terms of efficiency. Considering also the superior accuracy of this formulation, CTF becomes suitable for fast and accurate analysis of scattering problems involving lossy dielectric objects.

Item type: Article
ID code: 40289
Keywords: arbitrary shape, radiation, conducting bodies, surface integral equations, iterative solutions, multilevel fast multipole algorithm, permittivity, dielectrics, Probabilities. Mathematical statistics, Computational Mathematics, Analysis, Applied Mathematics, Engineering(all)
Subjects: Science > Mathematics > Probabilities. Mathematical statistics
Department: Faculty of Science > Mathematics and Statistics
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Depositing user: Pure Administrator
Date Deposited: 02 Jul 2012 11:03
Last modified: 27 Mar 2014 10:14
URI: http://strathprints.strath.ac.uk/id/eprint/40289

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