A general approach for the development of unsplit-field time-domain implementations of perfectly matched layers for FDTD grid truncation

Research output: Contribution to journalArticlepeer-review

Abstract

It is shown that the anisotropic perfectly matched medium, proposed recently for the construction of reflectionless absorbing boundaries for differential equation-based electromagnetic simulations in unbounded domains, can be made equivalent to the Chew-Weedon perfectly matched medium developed from a modified Maxwell's system with coordinate stretching. Consequently, despite the apparently nonphysical coordinate stretching, Chew-Weedon's formulation, with an appropriate definition of the involved electric and magnetic fields, is merely an alternative mathematical form of Maxwell's system in an anisotropic medium. Finally, a more convenient time-domain implementation of the perfectly matched layer without splitting of the field components is derived.

Original languageEnglish (US)
Pages (from-to)209-211
Number of pages3
JournalIEEE Microwave and Guided Wave Letters
Volume6
Issue number5
DOIs
StatePublished - May 1 1996
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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