A COMPARISON OF 2 FFT-BASED METHODS FOR DIELECTRIC SCATTERING PROBLEMS

被引：0

作者：

TRAN, TV

MCCOWEN, A

机构：

[1] Department of Electrical and Electronic Engineering, University of Wales, Swansea, Sa2 8Pp, Singleton Park

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 1995年 / 8卷 / 01期

关键词：

BICONJUGATE-GRADIENT METHOD; DIELECTRIC PROBLEMS; ELECTROMAGNETIC SCATTERING; FFT-BASED METHODS; GENERALIZED NEUMANN SERIES;

D O I：

10.1002/mop.4650080113

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：

The performance of two FFT-based methods for solving dielectric scattering problems is investigated. The first method is associated with van den Berg's integrated-squared-error algorithm, where the variational basis function is based on a generalized Neumann series (GNS) expansion of the inverse of the defining integral operator. The second method is the biconjugate-gradient FFT (Bi-CGFFT) for symmetric indefinite systems. Both methods are applied to a variety of dielectric problems encompassing both homogeneous and inhomogeneous material compositions in two- and three-dimensional spaces. Particular emphasis is placed on the identification of the class of problems that yield nonconvergence for the Bi-CGFFT and the alleviation of this undesirable behavior. (C) 1995 John Wiley & Sons, Inc.

引用

页码：36 / 38

页数：3

共 8 条

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[2]

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Tran T.V., McCowen A.

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