Accurate solutions of scattering problems involving low-contrast dielectric objects with surface integral equations

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buir.contributor.authorGürel, Levent
buir.contributor.authorErgül, Özgür
dc.citation.issueNumber11961en_US
dc.citation.volumeNumber2007en_US
dc.contributor.authorErgül, Özgüren_US
dc.contributor.authorGürel, Leventen_US
dc.coverage.spatialEdinburgh, UKen_US
dc.date.accessioned2016-02-08T11:40:34Zen_US
dc.date.available2016-02-08T11:40:34Zen_US
dc.date.issued2007en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentComputational Electromagnetics Research Center (BiLCEM)en_US
dc.descriptionDate of Conference: 11-16 November 2007en_US
dc.descriptionConference Name: 2nd European Conference on Antennas and Propagation, EuCAP 2007en_US
dc.description.abstractWe present the stabilization of the surface integral equations for accurate solutions of scattering problems involving low-contrast dielectric objects. Unlike volume formulations, conventional surface formulations fail to provide accurate results for the scattered fields when the contrast of the object is small. Therefore, surface formulations are required to be stabilized by extracting the nonradiating parts of the equivalent currents. In addition to previous strategies for the stabilization, we introduce a novel procedure called field-based stabilization (FBS) based on using fictitious incident fields and rearranging the right-hand-side of the equations. The results show that the formulations using FBS provide accurate results even for scattering problems involving extremely low-contrast objects, while the extra cost due to the stabilization procedure is negligible.en_US
dc.identifier.doi10.1049/ic.2007.1148en_US
dc.identifier.urihttp://hdl.handle.net/11693/26958en_US
dc.language.isoEnglishen_US
dc.publisherInstitution of Engineering and Technologyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1049/ic.2007.1148en_US
dc.source.titleProceedings of the 2nd European Conference on Antennas and Propagation, EuCAP 2007en_US
dc.subjectDielectricsen_US
dc.subjectElectromagnetic scatteringen_US
dc.subjectMultilevel fast multipole algorithmen_US
dc.subjectSurface integral equationsen_US
dc.subjectDielectric objectsen_US
dc.subjectEquivalent currentsen_US
dc.subjectIncident fieldsen_US
dc.subjectScattered fielden_US
dc.subjectScattering problemsen_US
dc.titleAccurate solutions of scattering problems involving low-contrast dielectric objects with surface integral equationsen_US
dc.typeConference Paperen_US

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Department of Electrical and Electronics Engineering
Computational Electromagnetics Research Center (BiLCEM)