An equivalent feed model for the FDTD analysis of antennas driven through a ground plane by coaxial lines

Seung Yeup Hyun, Se Yun Kim, Young Sik Kim

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

For the finite-difference time-domain (FDTD) analysis of antennas excited by coaxial lines, an equivalent model of the antenna feed is presented here. Under the quasi-static approximation, the coaxial aperture is simply represented as the equivalent magnetic-frill current and the equivalent load circuit including the effects of the coaxial line. It leads us to a simple modification of the standard FDTD update equation at the aperture without any additional cell modeling of the line. The validity of the proposed model is confirmed by comparing of the FDTD results and the measured data.

Original languageEnglish
Pages (from-to)161-167
Number of pages7
JournalIEEE Transactions on Antennas and Propagation
Volume57
Issue number1
DOIs
Publication statusPublished - 2009 Apr 1

Keywords

  • Antenna feed
  • Equivalent feed model
  • Finite-difference time-domain (FDTD)
  • Magnetic-frill current

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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