NDLI: The complex envelope (CE) FDTD method and its numerical properties

Content Provider	IEEE Xplore Digital Library
Author	Changning Ma Zhizhang Chen
Copyright Year	2003
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Dalhousie Univ., Halifax, NS, Canada (Changning Ma; Zhizhang Chen)
Abstract	The complex envelope (CE) finite-difference time-domain (FDTD) method has been proposed for solving electromagnetic fields of limited frequency-bands. However, it has been formulated often in terms of wave equations. In addition, its numerical properties have not been thoroughly studied. In this paper, a full-wave CE-FDTD method is presented and its numerical stability and dispersion properties are analyzed. It is found that if the carrier frequency is sufficiently high or numerical cell sizes are adequately large, the time step is no longer bounded by the stability condition; otherwise the time step is constrained by a CFL like stability condition. However, through the numerical dispersion analysis, the errors caused by large time step are not acceptable. Thus the CE-FDTD does not present much gain in computation efficiency over the conventional FDTD.
Starting Page	1721
Ending Page	1724
File Size	301310
Page Count	4
File Format	PDF
ISBN	0780383311
ISSN	0149645X
DOI	10.1109/MWSYM.2004.1338925
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-06-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Finite difference methods Time domain analysis Maxwell equations Radio frequency Optical modulation Partial differential equations Numerical stability RF signals Electromagnetic fields Time factors
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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