Finite-difference time-domain method for antenna radiation

Panayiotis A. Tirkas, Constantine Balanis

Research output: Contribution to journalArticle

81 Citations (Scopus)

Abstract

The finite-difference time-domain (FDTD) method is used to model and predict the radiation patterns of wire and aperture antennas of three basic configurations. A critical step in each is the modeling of the feed. Alternate suggestions are made and some are implemented. The first antenna is a quarter-wavelength monopole and the second is a waveguide aperture antenna. In both cases the antenna is mounted on ground planes, either perfectly conducting or of composite material. The results obtained using the FDTD technique are compared with results obtained using the geometrical theory of diffraction (GTD) and measurements. The third configuration of interest is a pyramidal horn antenna. To model the flared parts of the horn, a staircase approximation was applied to the antenna surface. The computed radiation patterns compared well with measurements.

Original languageEnglish (US)
Pages (from-to)334-340
Number of pages7
JournalIEEE Transactions on Antennas and Propagation
Volume40
Issue number3
DOIs
StatePublished - Mar 1992

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Antenna radiation
Finite difference time domain method
Antennas
Directional patterns (antenna)
Horn antennas
Antenna grounds
Waveguides
Diffraction
Wire
Wavelength
Composite materials

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Finite-difference time-domain method for antenna radiation. / Tirkas, Panayiotis A.; Balanis, Constantine.

In: IEEE Transactions on Antennas and Propagation, Vol. 40, No. 3, 03.1992, p. 334-340.

Research output: Contribution to journalArticle

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