Layered media green's function approximation in terms of spherical and cylindrical waves

V. Kourkoulos, A. C. Cangellaris

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A robust methodology is presented for the derivation of accurate, closed-from expressions for the Green's functions in planar stratified media. The methodology is based on the separation of the spectrum into two parts; the quasi-static and the dynamic part. The quasi-static part is calculated analytically in closed form, both in the spectral and space domain, and translates to a finite sum of spherical waves. The spectrum of the dynamic part is fitted in terms of rational functions and results in a finite sum of cylindrical waves, in the space domain. High accuracy is achieved for both the near field and the far field region due to the fact that both spherical and cylindrical waves are included in the closed form expressions.

Original languageEnglish (US)
Title of host publication2nd European Conference on Antennas and Propagation, EuCAP 2007
Edition11961
DOIs
StatePublished - 2007
Event2nd European Conference on Antennas and Propagation, EuCAP 2007 - Edinburgh, United Kingdom
Duration: Nov 11 2007Nov 16 2007

Publication series

NameIET Seminar Digest
Number11961
Volume2007

Other

Other2nd European Conference on Antennas and Propagation, EuCAP 2007
Country/TerritoryUnited Kingdom
CityEdinburgh
Period11/11/0711/16/07

Keywords

  • Greens function
  • Layered media
  • Rational function interpolation.
  • Sommerfeld integrals

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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