Finite-difference time-domain technique for antenna radiation

Panayiotis A. Tirkas, Constantine Balanis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


The finite-difference time-domain (FD-TD) technique is used to predict the radiation pattern of antennas mounted on ground planes, either perfectly conducting or of composite material, and other complex structures. The results obtained using the FD-TD technique are compared with results using the geometrical theory of diffraction (GTD) and measurements. The normalized power pattern of a quarter-wavelength monopole on a square perfectly conducting ground plane is displayed. In addition, results obtained using a circular perfectly conducting ground plane are exhibited. The FD-TD method predicts extremely well, as does the GTD, the ring source contributions of the circular ground plane which reflect in higher intensity lobes near the axis of the system (θ = 0 and 180°) as compared to those of the straight-edge ground plane.

Original languageEnglish (US)
Title of host publicationIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
PublisherPubl by IEEE
Number of pages4
StatePublished - 1990
Event1990 Antennas and Propagation Symposium Digest - Dallas, TX, USA
Duration: May 7 1990May 11 1990


Other1990 Antennas and Propagation Symposium Digest
CityDallas, TX, USA

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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