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[期刊论文]

A fast algorithm for the electromagnetic scattering from a large rectangular cavity in three dimensions

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作者:

Chen, Yanli (Chen, Yanli.) | Jiang, Xue (Jiang, Xue.) | Lai, Jun (Lai, Jun.) | 展开

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EI Scopus SCIE

摘要:

The paper is concerned with the three-dimensional electromagnetic scattering from a large open rectangular cavity that is embedded in a perfectly electrically conducting infinite ground plane. By introducing a transparent boundary condition, the scattering problem is formulated into a boundary value problem in the bounded cavity. Based on the Fourier expansions of the electric field, the Maxwell equation is reduced to one-dimensional ordinary differential equations for the Fourier coefficients. A fast algorithm, employing the fast Fourier transform and the Gaussian elimination, is developed to solve the resulting linear system for the cavity which is filled with either a homogeneous or a layered medium. In addition, a novel scheme is designed to evaluate rapidly and accurately the Fourier transform of singular integrals. Numerical experiments are presented for large cavities to demonstrate the superior performance of the proposed method. (C) 2021 Elsevier Inc. All rights reserved.

关键词:

Maxwell's equations Electromagnetic scattering problem Open cavity Fast algorithm

作者机构:

  • [ 1 ] [Chen, Yanli]Northeastern Univ, Dept Math, Shenyang 110819, Peoples R China
  • [ 2 ] [Jiang, Xue]Beijing Univ Technol, Coll Math, Fac Sci, Beijing 100124, Peoples R China
  • [ 3 ] [Lai, Jun]Zhejiang Univ, Sch Math Sci, Hangzhou 310027, Zhejiang, Peoples R China
  • [ 4 ] [Li, Peijun]Purdue Univ, Dept Math, W Lafayette, IN 47907 USA

通讯作者信息:

  • [Jiang, Xue]Beijing Univ Technol, Coll Math, Fac Sci, Beijing 100124, Peoples R China

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来源 :

JOURNAL OF COMPUTATIONAL PHYSICS

ISSN: 0021-9991

年份: 2021

卷: 437

4 . 1 0 0

JCR@2022

ESI学科: PHYSICS;

ESI高被引阀值:72

JCR分区:1

被引次数:

WoS核心集被引频次: 9

SCOPUS被引频次: 9

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