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Article: On the formulation of hybrid finite-element and boundary-integral methods for 3-D scattering

TitleOn the formulation of hybrid finite-element and boundary-integral methods for 3-D scattering
Authors
KeywordsBoundary-Integral Equations
Electromagnetic Scattering
Finite-Element Methods
Nonhomogeneous Media
Issue Date1998
Citation
Ieee Transactions On Antennas And Propagation, 1998, v. 46 n. 3, p. 303-311 How to Cite?
AbstractThis paper studies, in detail, a variety of formulations for the hybrid finite-element and boundary-integral (FE-BI) method for three-dimensional (3-D) electromagnetic scattering by inhomogeneous objects. It is shown that the efficiency and accuracy of the FE-BI method depends highly on the formulation and discretization of the boundary-integral equation (BIE) used. A simple analysis of the matrix condition number identifies the efficiency of the different FE-BI formulations and an analysis of weighting functions shows that the traditional FE-BI formulations cannot produce accurate solutions. A new formulation is then proposed and numerical results show that the resulting solution has a good efficiency and accuracy and is completely immune to the problem of interior resonance. Finally, the multilevel fast multipole algorithm (MLFMA) is employed to significantly reduce the memory requirement and computational complexity of the proposed FE-BI method. © 1998 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/182591
ISSN
2015 Impact Factor: 2.053
2015 SCImago Journal Rankings: 2.130
References

 

DC FieldValueLanguage
dc.contributor.authorSheng, XQen_US
dc.contributor.authorJin, JMen_US
dc.contributor.authorLu, CCen_US
dc.contributor.authorChew, WCen_US
dc.date.accessioned2013-05-02T05:16:01Z-
dc.date.available2013-05-02T05:16:01Z-
dc.date.issued1998en_US
dc.identifier.citationIeee Transactions On Antennas And Propagation, 1998, v. 46 n. 3, p. 303-311en_US
dc.identifier.issn0018-926Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/182591-
dc.description.abstractThis paper studies, in detail, a variety of formulations for the hybrid finite-element and boundary-integral (FE-BI) method for three-dimensional (3-D) electromagnetic scattering by inhomogeneous objects. It is shown that the efficiency and accuracy of the FE-BI method depends highly on the formulation and discretization of the boundary-integral equation (BIE) used. A simple analysis of the matrix condition number identifies the efficiency of the different FE-BI formulations and an analysis of weighting functions shows that the traditional FE-BI formulations cannot produce accurate solutions. A new formulation is then proposed and numerical results show that the resulting solution has a good efficiency and accuracy and is completely immune to the problem of interior resonance. Finally, the multilevel fast multipole algorithm (MLFMA) is employed to significantly reduce the memory requirement and computational complexity of the proposed FE-BI method. © 1998 IEEE.en_US
dc.languageengen_US
dc.relation.ispartofIEEE Transactions on Antennas and Propagationen_US
dc.subjectBoundary-Integral Equationsen_US
dc.subjectElectromagnetic Scatteringen_US
dc.subjectFinite-Element Methodsen_US
dc.subjectNonhomogeneous Mediaen_US
dc.titleOn the formulation of hybrid finite-element and boundary-integral methods for 3-D scatteringen_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.doi10.1109/8.662648en_US
dc.identifier.scopuseid_2-s2.0-0032025132en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032025132&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume46en_US
dc.identifier.issue3en_US
dc.identifier.spage303en_US
dc.identifier.epage311en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridSheng, XQ=7102570487en_US
dc.identifier.scopusauthoridJin, JM=7403588231en_US
dc.identifier.scopusauthoridLu, CC=7404804587en_US
dc.identifier.scopusauthoridChew, WC=36014436300en_US

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