Application of the Measured Equation of Invariance to Electromagnetic Scattering by Penetrable Bodies

Andreas C Cangellaris, Diana B. Wright

Research output: Contribution to journalArticlepeer-review

Abstract

The Measured Equation of Invariance (MEI) concept for the numerical solution of time-harmonic electromagnetic wave scattering by perfectly conducting bodies in unbounded regions, is extended to handle two-dimensional penetrable scatterers. MEI is essentially a numerically derived discrete equation which is satisfied by the fields scattered by a specific scatterer independently of the excitation. It is demonstrated that the development of an MEI for penetrable scatterers is as straightforward as for the case of perfectly conducting ones, and can be used as an accurate localized truncation condition in conjunction with finite-element/flnite-difference grids that conform to the scatterer and extend only a few cells away from its boundary.

Original languageEnglish (US)
Pages (from-to)1628-1631
Number of pages4
JournalIEEE Transactions on Magnetics
Volume29
Issue number2
DOIs
StatePublished - Mar 1993
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Physics and Astronomy (miscellaneous)

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