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Article: A FAFFA-MLFMA algorithm for electromagnetic scattering

TitleA FAFFA-MLFMA algorithm for electromagnetic scattering
Authors
KeywordsElectromagnetic Scattering
Far-Field Approximation
Fast Multipole
Integral Equation
Method Of Moments (Mom)
Multilevel Algorithm
Issue Date2002
Citation
Ieee Transactions On Antennas And Propagation, 2002, v. 50 n. 11, p. 1641-1649 How to Cite?
AbstractBased on the multilevel fast multipole algorithm (MLFMA), an efficient method is proposed to accelerate the solution of the combined field integral equation in electromagnetic scattering and radiation, where the fast far-field approximation (FAFFA) is combined with MLFMA. The translation between groups in MLFMA is expensive because spherical Hankel functions and Legendre polynomials are involved and the translator is defined on an Eward sphere with many k directions. When two groups are in the far-field region, however, the translation can be greatly simplified by FAFFA where only a single k direction is involved in the translator. The condition for using FAFFA and the way to efficiently incorporate FAFFA with MLFMA are discussed. Complexity analysis illustrates that the computational cost in FAFFA-MLFMA can be asymptotically cut by half compared to the conventional MLFMA. Numerical results are given to verify the efficiency of the algorithm.
Persistent Identifierhttp://hdl.handle.net/10722/182671
ISSN
2015 Impact Factor: 2.053
2015 SCImago Journal Rankings: 2.130
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChew, WCen_US
dc.contributor.authorCui, TJen_US
dc.contributor.authorSong, JMen_US
dc.date.accessioned2013-05-02T05:16:22Z-
dc.date.available2013-05-02T05:16:22Z-
dc.date.issued2002en_US
dc.identifier.citationIeee Transactions On Antennas And Propagation, 2002, v. 50 n. 11, p. 1641-1649en_US
dc.identifier.issn0018-926Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/182671-
dc.description.abstractBased on the multilevel fast multipole algorithm (MLFMA), an efficient method is proposed to accelerate the solution of the combined field integral equation in electromagnetic scattering and radiation, where the fast far-field approximation (FAFFA) is combined with MLFMA. The translation between groups in MLFMA is expensive because spherical Hankel functions and Legendre polynomials are involved and the translator is defined on an Eward sphere with many k directions. When two groups are in the far-field region, however, the translation can be greatly simplified by FAFFA where only a single k direction is involved in the translator. The condition for using FAFFA and the way to efficiently incorporate FAFFA with MLFMA are discussed. Complexity analysis illustrates that the computational cost in FAFFA-MLFMA can be asymptotically cut by half compared to the conventional MLFMA. Numerical results are given to verify the efficiency of the algorithm.en_US
dc.languageengen_US
dc.relation.ispartofIEEE Transactions on Antennas and Propagationen_US
dc.subjectElectromagnetic Scatteringen_US
dc.subjectFar-Field Approximationen_US
dc.subjectFast Multipoleen_US
dc.subjectIntegral Equationen_US
dc.subjectMethod Of Moments (Mom)en_US
dc.subjectMultilevel Algorithmen_US
dc.titleA FAFFA-MLFMA algorithm for electromagnetic 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/TAP.2002.802162en_US
dc.identifier.scopuseid_2-s2.0-0036879966en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036879966&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume50en_US
dc.identifier.issue11en_US
dc.identifier.spage1641en_US
dc.identifier.epage1649en_US
dc.identifier.isiWOS:000180634400018-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridChew, WC=36014436300en_US
dc.identifier.scopusauthoridCui, TJ=7103095470en_US
dc.identifier.scopusauthoridSong, JM=7404788341en_US

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