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Title: An unconditionally stable high-order 2-D ADI-FDTD method
Authors: Sun, MK
Tam, WY 
Keywords: Computational electromagnetics
Error analysis
Finite difference time-domain analysis
Numerical stability
Issue Date: 2003
Publisher: IEEE
Source: IEEE Antennas and Propagation Society International Symposium, 2003, 22-27 June 2003, Columbus, OH, USA, v. 4, p. 352-355 How to cite?
Abstract: 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.
ISBN: 0-7803-7846-6
DOI: 10.1109/APS.2003.1220192
Appears in Collections:Conference Paper

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