Coupling modeling and reduction techniques of cavity-backed slot antennas: FDTD versus measurements

Stavros V. Georgakopoulos, Craig R. Birtcher, Constantine Balanis

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

Cavity-backed slot (CBS) antennas are commonly used in earth-based and space-borne applications. In this manuscript, the finite-difference time-domain (FDTD) method is used to analyze different antenna characteristics of such elements including input impedance, coupling, and radiation patterns. Emphasis is given on coupling calculations especially on different methods to reduce coupling. Specifically, coupling reduction is attempted using lossy material superstrates or ground plane discontinuities, such as slits. Numerical issues concerning the analysis of CBS antennas in the context of FDTD are also discussed.

Original languageEnglish (US)
Pages (from-to)261-272
Number of pages12
JournalIEEE Transactions on Electromagnetic Compatibility
Volume43
Issue number3
DOIs
StatePublished - Aug 1 2001

Keywords

  • Cavity-backed slot antennas
  • Coupling modeling
  • Coupling reduction
  • FDTD

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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