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Article: Efficient method for the near-field scattering by buried dielectric and conducting objects

TitleEfficient method for the near-field scattering by buried dielectric and conducting objects
Authors
Issue Date1998
PublisherTaylor & Francis Inc. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/02726343.asp
Citation
Electromagnetics, 1998, v. 18 n. 6, p. 555-573 How to Cite?
AbstractThis paper presents an efficient method for the near-field electromagnetic scattering by three-dimensional buried dielectric and conducting objects, in which the interaction of source antennas, the ground, and scatterers is considered. With the excitation of a linear antenna, the electric field integral equations for the antenna and buried objects, and their radiation and scattered fields are formulated, which involve two different sets of Sommerfeld integrals. Because the evaluation of such Sommerfeld integrals needs tremendous CPU time, the integration along steepestdescent paths and leading-order approximations are introduced to accelerate the computation, in which the difference between the two sets of Sommerfeld integrals is addressed. As an example, the excitation of dipole and loop antenna is considered for the scattering by buried objects, which is important for the geophysical detection problem. Numerical results show that the efficient method can reduce tremendous CPU time compared with the numerical integration method.
Persistent Identifierhttp://hdl.handle.net/10722/182603
ISSN
2015 Impact Factor: 0.333
2015 SCImago Journal Rankings: 0.253
References

 

DC FieldValueLanguage
dc.contributor.authorCui, TJen_US
dc.contributor.authorChew, WCen_US
dc.date.accessioned2013-05-02T05:16:04Z-
dc.date.available2013-05-02T05:16:04Z-
dc.date.issued1998en_US
dc.identifier.citationElectromagnetics, 1998, v. 18 n. 6, p. 555-573en_US
dc.identifier.issn0272-6343en_US
dc.identifier.urihttp://hdl.handle.net/10722/182603-
dc.description.abstractThis paper presents an efficient method for the near-field electromagnetic scattering by three-dimensional buried dielectric and conducting objects, in which the interaction of source antennas, the ground, and scatterers is considered. With the excitation of a linear antenna, the electric field integral equations for the antenna and buried objects, and their radiation and scattered fields are formulated, which involve two different sets of Sommerfeld integrals. Because the evaluation of such Sommerfeld integrals needs tremendous CPU time, the integration along steepestdescent paths and leading-order approximations are introduced to accelerate the computation, in which the difference between the two sets of Sommerfeld integrals is addressed. As an example, the excitation of dipole and loop antenna is considered for the scattering by buried objects, which is important for the geophysical detection problem. Numerical results show that the efficient method can reduce tremendous CPU time compared with the numerical integration method.en_US
dc.languageengen_US
dc.publisherTaylor & Francis Inc. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/02726343.aspen_US
dc.relation.ispartofElectromagneticsen_US
dc.titleEfficient method for the near-field scattering by buried dielectric and conducting objectsen_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-s2.0-0032207541en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032207541&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume18en_US
dc.identifier.issue6en_US
dc.identifier.spage555en_US
dc.identifier.epage573en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridCui, TJ=7103095470en_US
dc.identifier.scopusauthoridChew, WC=36014436300en_US

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