Finite-difference time-domain model for the feeding gap of coaxial probe driven antennas

S. Y. Hyun, S. Y. Kim, Young Sik Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In the finite-difference time-domain (FDTD) method, a simple and realistic feed model for coaxial probe driven antennas is proposed here. The feed zone of the antenna may be considered as an equivalent source in view of the antenna theory and a load port in view of the transmission line theory. The proposed feed model is constructed by combining the infinitesimal-gap source condition of the antenna and the equivalent load condition of the feed line. It leads to perform no additional FDTD cell modelling of the line. The transient reflected voltage and the input impedance of cylindrical monopole antennas fed by coaxial lines are calculated numerically and then compared with the accurate measurement and a full fine-grid. The FDTD results of the proposed model have a good agreement with the measured data and the fine-grid results.

Original languageEnglish
Pages (from-to)501-506
Number of pages6
JournalIET Microwaves, Antennas and Propagation
Volume3
Issue number3
DOIs
Publication statusPublished - 2009 Apr 1

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Antenna feeders
Antennas
Cylindrical antennas
Transmission line theory
Monopole antennas
Finite difference time domain method
Electric potential

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Finite-difference time-domain model for the feeding gap of coaxial probe driven antennas. / Hyun, S. Y.; Kim, S. Y.; Kim, Young Sik.

In: IET Microwaves, Antennas and Propagation, Vol. 3, No. 3, 01.04.2009, p. 501-506.

Research output: Contribution to journalArticle

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