A hybrid time-domain discontinuous galerkin-boundary integral method for electromagnetic scattering analysis

Handle URI:
http://hdl.handle.net/10754/563524
Title:
A hybrid time-domain discontinuous galerkin-boundary integral method for electromagnetic scattering analysis
Authors:
Li, Ping; Shi, Yifei ( 0000-0002-3508-1010 ) ; Jiang, Lijun; Bagci, Hakan ( 0000-0003-3867-5786 )
Abstract:
A scheme hybridizing discontinuous Galerkin time-domain (DGTD) and time-domain boundary integral (TDBI) methods for accurately analyzing transient electromagnetic scattering is proposed. Radiation condition is enforced using the numerical flux on the truncation boundary. The fields required by the flux are computed using the TDBI from equivalent currents introduced on a Huygens' surface enclosing the scatterer. The hybrid DGTDBI ensures that the radiation condition is mathematically exact and the resulting computation domain is as small as possible since the truncation boundary conforms to scatterer's shape and is located very close to its surface. Locally truncated domains can also be defined around each disconnected scatterer additionally reducing the size of the overall computation domain. Numerical examples demonstrating the accuracy and versatility of the proposed method are presented. © 2014 IEEE.
KAUST Department:
Center for Uncertainty Quantification in Computational Science and Engineering (SRI-UQ); Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Computational Electromagnetics Laboratory
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Transactions on Antennas and Propagation
Issue Date:
May-2014
DOI:
10.1109/TAP.2014.2307294
Type:
Article
ISSN:
0018926X
Sponsors:
This work was supported in part by the Research Grants Council of Hong Kong (GRF 713011, GRF 712612, and 711511), NSFC 61271158, US AR120018, and Hong Kong UGC AoE/P-04/08.
Appears in Collections:
Articles; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorLi, Pingen
dc.contributor.authorShi, Yifeien
dc.contributor.authorJiang, Lijunen
dc.contributor.authorBagci, Hakanen
dc.date.accessioned2015-08-03T11:53:37Zen
dc.date.available2015-08-03T11:53:37Zen
dc.date.issued2014-05en
dc.identifier.issn0018926Xen
dc.identifier.doi10.1109/TAP.2014.2307294en
dc.identifier.urihttp://hdl.handle.net/10754/563524en
dc.description.abstractA scheme hybridizing discontinuous Galerkin time-domain (DGTD) and time-domain boundary integral (TDBI) methods for accurately analyzing transient electromagnetic scattering is proposed. Radiation condition is enforced using the numerical flux on the truncation boundary. The fields required by the flux are computed using the TDBI from equivalent currents introduced on a Huygens' surface enclosing the scatterer. The hybrid DGTDBI ensures that the radiation condition is mathematically exact and the resulting computation domain is as small as possible since the truncation boundary conforms to scatterer's shape and is located very close to its surface. Locally truncated domains can also be defined around each disconnected scatterer additionally reducing the size of the overall computation domain. Numerical examples demonstrating the accuracy and versatility of the proposed method are presented. © 2014 IEEE.en
dc.description.sponsorshipThis work was supported in part by the Research Grants Council of Hong Kong (GRF 713011, GRF 712612, and 711511), NSFC 61271158, US AR120018, and Hong Kong UGC AoE/P-04/08.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectBoundary integral (BI) methoden
dc.subjectdisconnected/concave scatterersen
dc.subjectdiscontinuous Galerkin time-domain (DGTD) methoden
dc.subjectHuygens' principleen
dc.titleA hybrid time-domain discontinuous galerkin-boundary integral method for electromagnetic scattering analysisen
dc.typeArticleen
dc.contributor.departmentCenter for Uncertainty Quantification in Computational Science and Engineering (SRI-UQ)en
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentComputational Electromagnetics Laboratoryen
dc.identifier.journalIEEE Transactions on Antennas and Propagationen
dc.contributor.institutionDepartment of Electrical and Electronic Engineering, University of Hong Kong, Hong Kong, Hong Kongen
kaust.authorShi, Yifeien
kaust.authorBagci, Hakanen
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