Higher-order finite-difference schemes for electromagnetic radiation, scattering, and penetration, Part 2: Applications

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

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

Higher-order schemes for the finite-difference time-domain (FDTD) method - in particular, a second-order-in-time, fourth-order-in-space method, FDTD(2,4) - are applied to a number of problems. The theoretical background was presented in the first part of this two-part paper. The problems include array analysis, cavity resonances, antenna coupling, and shielding-effectiveness case studies. The last includes a simplified model of a commercial airliner, with a personal electronic device operating in the vicinity of the aircraft. The FDTD computations are also compared to measured data for this case. Incorporating PEC and other types of material boundaries into higher-order FDTD is problematic; a hybrid approach using the standard FDTD method in the proximity of the boundary is proposed, and shown to perform well.

Original languageEnglish (US)
Pages (from-to)92-101
Number of pages10
JournalIEEE Antennas and Propagation Magazine
Volume44
Issue number2
DOIs
StatePublished - Apr 1 2002

Keywords

  • Antenna radiation patterns
  • Cavity resonators
  • Electromagnetic compatibility
  • Electromagnetic radiation
  • Electromagnetic scattering
  • Electromagnetic shielding
  • FDTD methods
  • Numerical stability

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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