Rigorous analysis of a metallic circular post in a rectangular waveguide with step discontinuity of sidewalls

Constantine A. Valagiannopoulos, Nikolaos K. Uzunoglu

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The scattering of guided waves by a conductive post placed inside a rectangular waveguide with a step discontinuity on its sidewalls is analyzed through an integral-equation formulation. The interaction between post and discontinuity is examined with use of the Green's function. Numerical computations are carried out based on the mode-matching technique, providing a stable and accurate solution. An equivalent-circuit model is developed from the electromagnetic analysis and the computed scattering 5-parameters. The developed solution accuracy is validated with simulation software.

Original languageEnglish
Pages (from-to)1673-1683
Number of pages11
JournalIEEE Transactions on Microwave Theory and Techniques
Volume55
Issue number8
DOIs
Publication statusPublished - Aug 1 2007

Keywords

  • Green's function
  • Guided waves scattering
  • Integral equations
  • Mode matching
  • S-parameters
  • Waveguide discontinuities

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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