An IBC enhanced DGTD scheme for transient analysis of em interactions with graphene
Type
Conference PaperAuthors
Li, PingJiang, Lijun
Bagci, Hakan

KAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionElectrical Engineering Program
Computational Electromagnetics Laboratory
Date
2014-07Permanent link to this record
http://hdl.handle.net/10754/564954
Metadata
Show full item recordAbstract
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.Conference/Event name
2014 IEEE Antennas and Propagation Society International Symposium, APSURSI 2014ISBN
9781479935406ae974a485f413a2113503eed53cd6c53
10.1109/APS.2014.6905022