An unconditionally stable high-order 2-D ADI-FDTD method

M. K. Sun, Wai Yip Tam

Research output: Journal article publicationConference articleAcademic researchpeer-review

6 Citations (Scopus)


The alternating-direction implicit (ADI) FDTD method is free of the Courant-Friedrich-Levy (CFL) stability condition, however the numerical dispersion error increases after the ADI method is applied. In this paper, a high-order ADI-FDTD method, which using higher order accurate approximation at the spatial derivative, is formulated. The new scheme reduces the numerical dispersion error and is still unconditionally stable. Besides, the sixth-order 2-D ADI-FDTD method is used to study the effect of different time-step sizes on stability and numerical dispersion.
Original languageEnglish
Pages (from-to)352-355
Number of pages4
JournalIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Publication statusPublished - 1 Sept 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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