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

被引：11

作者：

Erguel, Oezguer ^{[1
]}

机构：

[1] Univ Strathclyde, Dept Math & Stat, Glasgow G1 1XH, Lanark, Scotland

来源：

ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 2012年 / 36卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

Dielectrics; Surface integral equations; Iterative solutions; Multilevel fast multipole algorithm; SURFACE INTEGRAL-EQUATIONS; CONDUCTING BODIES; SCATTERING; FORMULATION; FIELD; PERMITTIVITY; CONJUNCTION; RADIATION;

D O I：

10.1016/j.enganabound.2011.08.011

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

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. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：423 / 432

页数：10

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