File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: On the near-interaction elements in integral equation solvers for electromagnetic scattering by three-dimensional thin objects

TitleOn the near-interaction elements in integral equation solvers for electromagnetic scattering by three-dimensional thin objects
Authors
KeywordsElectromagnetic Scattering
Integral Equations
Numerical Analysis
Issue Date2009
Citation
Ieee Transactions On Antennas And Propagation, 2009, v. 57 n. 8, p. 2500-2506 How to Cite?
AbstractThe accuracy of near-interaction (NI) evaluation is investigated for hypersingular and strongly singular kernels in solving electromagnetic (EM) integral equations. We first define the NI between a field point and a source triangular patch using a nearness factor (N F) and show the accuracy of numerical integrations for the NI integrals with hypersingular or strongly singular kernels. It is found that there exists a transition area or turning point before and after which the convergence behaviors of those integrations are greatly different. We define the N F value at the 1% relative error as the turning point N F0 and define N F ≤ N F0 as the NI range. We find that N F0 =1.4 could be a bound of NI range for the triangles with a quality factor q > 0.35 and analytical formulas should be used in evaluating NI elements within the bound. Numerical examples for EM scattering by three-dimensional (3D) thin objects are used to demonstrate the significance of NI treatments for the accurate solutions. © 2009 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/182762
ISSN
2015 Impact Factor: 2.053
2015 SCImago Journal Rankings: 2.130
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorTong, MSen_US
dc.contributor.authorChew, WCen_US
dc.date.accessioned2013-05-02T05:16:45Z-
dc.date.available2013-05-02T05:16:45Z-
dc.date.issued2009en_US
dc.identifier.citationIeee Transactions On Antennas And Propagation, 2009, v. 57 n. 8, p. 2500-2506en_US
dc.identifier.issn0018-926Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/182762-
dc.description.abstractThe accuracy of near-interaction (NI) evaluation is investigated for hypersingular and strongly singular kernels in solving electromagnetic (EM) integral equations. We first define the NI between a field point and a source triangular patch using a nearness factor (N F) and show the accuracy of numerical integrations for the NI integrals with hypersingular or strongly singular kernels. It is found that there exists a transition area or turning point before and after which the convergence behaviors of those integrations are greatly different. We define the N F value at the 1% relative error as the turning point N F0 and define N F ≤ N F0 as the NI range. We find that N F0 =1.4 could be a bound of NI range for the triangles with a quality factor q > 0.35 and analytical formulas should be used in evaluating NI elements within the bound. Numerical examples for EM scattering by three-dimensional (3D) thin objects are used to demonstrate the significance of NI treatments for the accurate solutions. © 2009 IEEE.en_US
dc.languageengen_US
dc.relation.ispartofIEEE Transactions on Antennas and Propagationen_US
dc.subjectElectromagnetic Scatteringen_US
dc.subjectIntegral Equationsen_US
dc.subjectNumerical Analysisen_US
dc.titleOn the near-interaction elements in integral equation solvers for electromagnetic scattering by three-dimensional thin 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.doi10.1109/TAP.2009.2024575en_US
dc.identifier.scopuseid_2-s2.0-68949219595en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-68949219595&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume57en_US
dc.identifier.issue8en_US
dc.identifier.spage2500en_US
dc.identifier.epage2506en_US
dc.identifier.isiWOS:000268756100034-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridTong, MS=11839685700en_US
dc.identifier.scopusauthoridChew, WC=36014436300en_US

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats