Green's function of a parallel plate waveguide with multiple abrupt changes of interwall distances

Constantine A. Valagiannopoulos, Nikolaos K. Uzunoglu

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The Green s function of a parallel plate waveguide with cascaded step discontinuities is computed by using analytical methods. The expression is written as a sum of two terms, the first of which corresponds to the effect of the horizontal plates on the primary source's field taking into account the symmetric images with respect to the metallic boundaries. The second term is related to the reflections from the vertical discontinuity edges, which are treated by applying successively a mode-matching technique. The solution of the posed boundary value problem is obtained through a well-conditioned linear system. The behavior of the guided waves far from the discontinuity region is determined with the help of far field approximations. Numerical computations for specific cases are presented and examined and many general purpose procedures of educational and tutorial interest are extensively described.

Original languageEnglish
Article numberRS5001
JournalRadio Science
Volume44
Issue number5
DOIs
Publication statusPublished - 2009
Externally publishedYes

Fingerprint

Guided electromagnetic wave propagation
Green function
parallel plates
Green's function
Boundary value problems
Linear systems
discontinuity
Waveguides
Green's functions
waveguides
linear systems
boundary value problems
far fields
analytical method
approximation

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Green's function of a parallel plate waveguide with multiple abrupt changes of interwall distances. / Valagiannopoulos, Constantine A.; Uzunoglu, Nikolaos K.

In: Radio Science, Vol. 44, No. 5, RS5001, 2009.

Research output: Contribution to journalArticle

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