NDLI: Uniform Two-Step Method for the FDTD Analysis of Aperture Coupling [EM Programmer's Notebook]

Content Provider	IEEE Xplore Digital Library
Author	Run Xiong Cheng Gao Bin Chen Yan-Tao Duan Qin Yin
Copyright Year	1990
Abstract	A uniform two-step method is proposed for the Finite-Difference Time-Domain (FDTD) analyses of the coupling of both long and short apertures with zero or finite depth. The aperture-field singularity is first studied in the form of the field distribution and the aperture coefficients derived from the numerical integral of the related fields. The dramatic field singularity and the coefficients are mainly determined by the aperture's width and depth, and also by the aperture's end-edge effect. To provide an accurate modeling of the aperture without requiring huge computational-resource usage, a high-resolution standard FDTD simulation of the aperture end-edge area is used at the first step, and then the electromagnetic field singularity is used to derive the aperture coefficients from a numerical integral. At the second step, the coefficients are fully included into the contour-path laws to derive the FDTD updating equations for the fields near the aperture. Numerical results validated that the proposed method is an efficient simulation of the aperture coupling.
Starting Page	181
Ending Page	192
Page Count	12
File Size	7557220
File Format	PDF
ISSN	10459243
Volume Number	56
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Apertures Finite difference methods Time-domain analysis Electromagnetic compatibility Mathematical model Couplings Electromagnetic fields Electromagnetic propagation finite difference methods Aperture coupled antennas electromagnetic compatibility electromagnetic coupling electromagnetic propagation
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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