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    An IBC enhanced DGTD scheme for transient analysis of em interactions with graphene

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    Type
    Conference Paper
    Authors
    Li, Ping
    Jiang, Lijun
    Bagci, Hakan cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Computational Electromagnetics Laboratory
    Date
    2014-07
    Permanent link to this record
    http://hdl.handle.net/10754/564954
    
    Metadata
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    Abstract
    A discontinuous Galerkin time-domain (DGTD) method is proposed for analyzing electromagnetic field interactions on graphene from microwave to terahertz frequencies. An impedance boundary condition (IBC) is utilized to model the graphene within the DGTD framework. The numerical flux is reformulated to take into account the IBC. Highly dispersive surface conductivity of graphene present in the resulting flux expression is approximated in terms of rational functions using the fast-relaxation vector-fitting technique. Via inverse Laplace transform, this facilitates the time domain matrix equations into an integral form for time variable t, finite integral technique (FIT) with recursive convolution method is employed to discrete and solve the matrix equations. The accuracy and applicability of the proposed IBC-DGTD is verified by numerical experiments.
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)
    Conference/Event name
    2014 IEEE Antennas and Propagation Society International Symposium, APSURSI 2014
    ISBN
    9781479935406
    DOI
    10.1109/APS.2014.6905022
    ae974a485f413a2113503eed53cd6c53
    10.1109/APS.2014.6905022
    Scopus Count
    Collections
    Conference Papers; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

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