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Article: Computation of transient electromagnetic waves in inhomogeneous media

TitleComputation of transient electromagnetic waves in inhomogeneous media
Authors
Issue Date1991
Citation
Radio Science, 1991, v. 26 n. 1, p. 265-273 How to Cite?
AbstractA brief summary of the methods of solving transient electromagnetic wave problems in inhomogeneous media will be given. The two distinct general techniques, which are the inverse Fourier transformation of time-harmonic solutions and the direct time-domain formulation, will be illustrated by way of two examples. In the first example, an efficient numerical mode-matching method to obtain the response of an electromagnetic source in a two-dimensional cylindrical inhomogeneity is described. Using this method, the solution is first obtained in the frequency domain. The time-domain solution is then found by inverse Fourier transforming the frequency-domain solution. In the second method, a finite-difference scheme is used to find the transient response of a point source in a two-dimensional inhomogeneity. Two different methods are proposed to treat the source region singularity. Transmitting boundary conditions are applied on the walls of the finite difference grid so that a finite-sized box can be used to model an infinite region.
Persistent Identifierhttp://hdl.handle.net/10722/182509
ISSN
2015 Impact Factor: 1.273
2015 SCImago Journal Rankings: 1.072

 

DC FieldValueLanguage
dc.contributor.authorMoghaddam, Men_US
dc.contributor.authorChew, WCen_US
dc.contributor.authorAnderson, Ben_US
dc.contributor.authorYannakakis, Een_US
dc.contributor.authorLiu, QHen_US
dc.date.accessioned2013-05-02T05:15:39Z-
dc.date.available2013-05-02T05:15:39Z-
dc.date.issued1991en_US
dc.identifier.citationRadio Science, 1991, v. 26 n. 1, p. 265-273en_US
dc.identifier.issn0048-6604en_US
dc.identifier.urihttp://hdl.handle.net/10722/182509-
dc.description.abstractA brief summary of the methods of solving transient electromagnetic wave problems in inhomogeneous media will be given. The two distinct general techniques, which are the inverse Fourier transformation of time-harmonic solutions and the direct time-domain formulation, will be illustrated by way of two examples. In the first example, an efficient numerical mode-matching method to obtain the response of an electromagnetic source in a two-dimensional cylindrical inhomogeneity is described. Using this method, the solution is first obtained in the frequency domain. The time-domain solution is then found by inverse Fourier transforming the frequency-domain solution. In the second method, a finite-difference scheme is used to find the transient response of a point source in a two-dimensional inhomogeneity. Two different methods are proposed to treat the source region singularity. Transmitting boundary conditions are applied on the walls of the finite difference grid so that a finite-sized box can be used to model an infinite region.en_US
dc.languageengen_US
dc.relation.ispartofRadio Scienceen_US
dc.titleComputation of transient electromagnetic waves in inhomogeneous mediaen_US
dc.typeArticleen_US
dc.identifier.emailChew, WC: wcchew@hku.hken_US
dc.identifier.authorityChew, WC=rp00656en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0025894360en_US
dc.identifier.volume26en_US
dc.identifier.issue1en_US
dc.identifier.spage265en_US
dc.identifier.epage273en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridMoghaddam, M=7004934627en_US
dc.identifier.scopusauthoridChew, WC=36014436300en_US
dc.identifier.scopusauthoridAnderson, B=7404263446en_US
dc.identifier.scopusauthoridYannakakis, E=6506077215en_US
dc.identifier.scopusauthoridLiu, QH=24780758100en_US

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