Solution of combined-field integral equation using multilevel fast multipole algorithm for scattering by homogeneous bodies

Xing Qing Sheng, Jian Ming Jin, Jiming Song, Weng Cho Chew, Cai Cheng Lu

Research output: Contribution to journalArticlepeer-review

308 Scopus citations

Abstract

In this paper, we present an accurate method of moments (MoM) solution of the combined field integral equation (CFIE) using the multilevel fast multipole algorithm (MLFMA) for scattering by large, three-dimensional (3-D), arbitrarily shaped, homogeneous objects. We first investigate several different MoM formulations of CFIE and propose a new formulation, which is both accurate and free of interior resonances. We then employ MLFMA to significantly reduce the memory requirement and computational complexity of the MoM solution. Numerical results are presented to demonstrate the accuracy and capability of the proposed method. The method can be extended in a straightforward manner to scatterers composed of different homogeneous dielectric and conducting objects.

Original languageEnglish
Pages (from-to)1718-1726
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Volume46
Issue number11
DOIs
StatePublished - 1998

Bibliographical note

Funding Information:
Manuscript received August 7, 1997; revised July 22, 1998. This work was supported in part by the Office of Naval Research under Grant N00014-95-1-0848, by a grant from the Air Force Office of Scientific Research via the MURI Program under Contract Number F49620-96-1-0025, and by the National Science Foundation under Grant NSF ECE 94-57735.

Keywords

  • Electromagnetic scattering
  • Moment methods

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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