Analysis of the numerical dispersion of the 2-D ADI-FDTD method with higher order scheme

M. K. Sun, Wai Yip Tam

Research output: Journal article publicationConference articleAcademic researchpeer-review

4 Citations (Scopus)


The alternating direction implicit (ADI) FDTD method is an unconditionally stable method. The maximum time-step size is not limited by the Courant-Friedrich-Levy (CFL) condition. However, the numerical error such as numerical dispersion increases, when the ADI method is applied. It was proven that higher order scheme could reduce the numerical dispersion error in the conventional FDTD method. In this paper, we investigate the numerical dispersion property of the ADI-FDTD method with higher order scheme. It is found that the numerical dispersion error of the ADI-FDTD method with higher order scheme is smaller than the original ADI-FDTD method.
Original languageEnglish
Pages (from-to)348-351
Number of pages4
JournalIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Publication statusPublished - 1 Sep 2003
Event2003 IEEE International Antennas and Propagation Symposium and USNC/CNC/URSI North American Radio Science Meeting - Columbus, OH, United States
Duration: 22 Jun 200327 Jun 2003

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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