A simple preconditioner for electric-field integral equations

Yongjun Xie, Jiangqi He, Anders Sullivan, Lawrence Carin

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

A preconditioner is applied to the electric-field integral equation, to improve the convergence of iterative integral-equation solvers, such as the conjugate-gradient (CG) method. The preconditioner accounts for (expansion function)-(testing function) interactions in the vicinity of a given basis function, requiring order N complexity for N unknowns. Example results are presented for microwave scattering calculations for targets in the vicinity of a half space (soil), with results computed via a multilevel fast multipole algorithm.
Original languageEnglish (US)
Pages (from-to)51-54
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume30
Issue number1
DOIs
StatePublished - Jan 1 2001
Externally publishedYes

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