62 0

FDTD Modeling for the Accurate Electromagnetic Wave Analysis of Graphene

Title
FDTD Modeling for the Accurate Electromagnetic Wave Analysis of Graphene
Author
정경영
Keywords
Complex-frequency-shifted perfectly matched layer; Dispersive media; Finite-diference timedomain (FDTD) method; Graphene
Issue Date
2020-05
Publisher
SPRINGER SINGAPORE PTE LTD
Citation
JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY, v. 15, no. 3, page. 1281-1286
Abstract
We develop a finite-difference time-domain (FDTD) method suitable for the electromagnetic (EM) analysis of graphene. In this work, we employ the modified Lorentz model for dispersion modeling, the two-dimensional (2-D) sheet model for geometrical modeling, and the complex-frequency-shifted (CFS)-perfectly matched layer (PML) for the absorbing boundary condition. In specific, the accurate complex-conjugate pole-residue (CCPR) dispersion model is first adapted for the electrical modeling of graphene by using the robust vector fitting. Next, the CCPR parameters are converted to the modified Lorentz parameters and then the modified Lorentz-based dispersive FDTD formulation is used to enhance the computational efficiency. In FDTD cell modeling, the 2-D sheet cells are allocated for graphene rather than the conventional FDTD cell-based modeling. Finally, CFS-PML are employed for terminating the computational domain to avoid the late-time instability. The presented FDTD approach is validated in numerical examples for graphene-based parallel plate waveguides.
URI
https://link.springer.com/article/10.1007/s42835-020-00390-0https://repository.hanyang.ac.kr/handle/20.500.11754/166697
ISSN
1975-0102; 2093-7423
DOI
10.1007/s42835-020-00390-0
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE