Convergence of moment-method solutions of the electric field integral equation for a 2-d open cavity

Karl F. Warnick, Weng Cho Chew

Research output: Contribution to journalArticlepeer-review

Abstract

We study the problem of accurate numerical determination of the radiation and scattering properties of resonant structures by estimating the canty mode eigenvalues of the electric field integral equation for a t\vo-dimensional open cavity. We obtain moment matrix condition number estimates for the TE and TM polarizations, and, by taking into account the quadrature error introduced by approximate numerical integration of matrix elements, we show that the number of unknowns required to accurately resolve the cavity modes scales as the square of the electrical size of the cavity.

Original languageEnglish (US)
Pages (from-to)212-218
Number of pages7
JournalMicrowave and Optical Technology Letters
Volume23
Issue number4
DOIs
StatePublished - Nov 20 1999
Externally publishedYes

Keywords

  • Accuracy
  • Condition number
  • Integral equations
  • Method of moments
  • Resonant caiïty

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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