NDLI: Hybrid Technique Combining the FDTD Method and Its Convolution Formulation Based on the Discrete Green's Function

Content Provider	IEEE Xplore Digital Library
Author	Stefanski, T.P.
Copyright Year	2002
Abstract	In this letter, a technique combining the finite-difference time-domain (FDTD) method and its formulation based on the discrete Green's function (DGF) is presented. The hybrid method is applicable to inhomogeneous dielectric structures that are mutually coupled with wire antennas. The method employs the surface equivalence theorem in the discrete domain to separate the problem into a dielectric domain simulated using the FDTD method and a wire antenna simulated using the DGF formulation of the FDTD method. Therefore, both methods can be perfectly coupled without introducing any additional errors to the FDTD solution. Applications of the hybrid FDTD method are illustrated by two canonical problems involving half-wavelength dipole antennas and a dielectric object. If the DGF length is equal to the number of iterations in a simulation, the presented hybrid technique returns the same results as the direct FDTD method (assuming infinite numerical precision of computations).
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	1448
Ending Page	1451
Page Count	4
File Size	856991
File Format	PDF
ISSN	15361225
Volume Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Finite difference methods Time-domain analysis Wires Dielectrics Computational modeling Dipole antennas Green's function methods Computational electromagnetics finite-difference time-domain (FDTD) methods
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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