Preconditioned MLFMA solution of multiple dielectric-metallic composite objects with the electric and magnetic current combined-field integral equation (JMCFIE)

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buir.contributor.authorGürel, Levent
buir.contributor.authorErgül, Özgür
dc.citation.epage4en_US
dc.citation.spage1en_US
dc.contributor.authorErgül, Özgüren_US
dc.contributor.authorGürel, Leventen_US
dc.coverage.spatialCharleston, SC, USA
dc.date.accessioned2016-02-08T12:27:14Z
dc.date.available2016-02-08T12:27:14Z
dc.date.issued2009-06en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentComputational Electromagnetics Research Center (BiLCEM)en_US
dc.descriptionDate of Conference: 1-5 June 2009
dc.descriptionConference name: 2009 IEEE Antennas and Propagation Society International Symposium
dc.description.abstractWe consider fast and accurate solutions of scattering problems involving multiple dielectric and composite dielectric-metallic structures with three-dimensional arbitrary shapes. Problems are formulated rigorously with the electric and magnetic current combined-field integral equation (JMCFIE), which produces well-conditioned matrix equations. Equivalent electric and magnetic surface currents are discretized by using the Rao-Wilton-Glisson (RWG) functions defined on planar triangles. Matrix equations obtained with JMCFIE are solved iteratively by employing a Krylov subspace algorithm, where the required matrix- vector multiplications are performed efficiently with the multilevel fast multipole algorithm (MLFMA). We also present a four-partition block-diagonal preconditioner (4PBDP), which provides efficient solutions of JMCFIE by reducing the number of iterations significantly. The resulting implementation based on JMCFIE, MLFMA, and 4PBDP is tested on large electromagnetics problems.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T12:27:14Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2009en
dc.identifier.doi10.1109/APS.2009.5172020en_US
dc.identifier.urihttp://hdl.handle.net/11693/28688
dc.language.isoEnglishen_US
dc.publisherIEEE
dc.relation.isversionofhttp://dx.doi.org/10.1109/APS.2009.5172020en_US
dc.source.titleIEEE Antennas and Propagation Society, AP-S International Symposium (Digest), 2009en_US
dc.subjectIntegral equations
dc.subjectTesting
dc.subjectElectromagnetic scattering
dc.subjectTransmission line matrix methods
dc.subjectInfluenza
dc.subjectMLFMA
dc.subjectDielectric losses
dc.subjectShape
dc.subjectIterative algorithms
dc.subjectH infinity control
dc.titlePreconditioned MLFMA solution of multiple dielectric-metallic composite objects with the electric and magnetic current combined-field integral equation (JMCFIE)en_US
dc.typeConference Paperen_US

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