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

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    Type
    Article
    Authors
    Li, Ping
    Shi, Yifei cc
    Jiang, Lijun
    Bagci, Hakan cc
    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
    Date
    2014-05
    Permanent link to this record
    http://hdl.handle.net/10754/563524
    
    Metadata
    Show full item record
    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.
    Citation
    Li, P., Shi, Y., Jiang, L. J., & Bagci, H. (2014). A Hybrid Time-Domain Discontinuous Galerkin-Boundary Integral Method for Electromagnetic Scattering Analysis. IEEE Transactions on Antennas and Propagation, 62(5), 2841–2846. doi:10.1109/tap.2014.2307294
    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.
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    IEEE Transactions on Antennas and Propagation
    DOI
    10.1109/TAP.2014.2307294
    ae974a485f413a2113503eed53cd6c53
    10.1109/TAP.2014.2307294
    Scopus Count
    Collections
    Articles; Electrical and Computer Engineering Program; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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