A discontinuous Galerkin finite element time-domain method modeling of dispersive media

Stephen D. Gedney, John C. Young, Tyler C. Kramer, J. Alan Roden

Research output: Contribution to journalArticlepeer-review

74 Scopus citations

Abstract

A method is proposed for solving the time-dependent Maxwell's equations via the discontinuous Galerkin finite-element time-domain (DGFETD) method with dispersive media. An auxiliary differential equation (ADE) method is used to represent the constitutive relations. The method is applied to Drude materials, as well as to multiple pole Debye and Lorentz materials. An efficient implementation for high-order Runge-Kutta time integration schemes is presented. The method is validated and is shown to exhibit high-order convergence.

Original languageEnglish
Article number6142027
Pages (from-to)1969-1977
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Volume60
Issue number4
DOIs
StatePublished - Apr 2012

Bibliographical note

Funding Information:
Manuscript received August 31, 2011; revised November 10, 2011; accepted November 10, 2011. Date of publication January 31, 2012; date of current version April 06, 2012. This work was supported by ERC, Inc., under PO RS080704 in collaboration with the Aerospace Corporation. S. D. Gedney and J. C. Young are with the Department of Electrical and Computer Engineering, University of Kentucky, Lexington, KY 40506-0046 USA (e-mail: [email protected]; [email protected]). T. C. Kramer and J. A. Roden are with The Aerospace Corporation, Chantilly, VA 20151 USA (e-mail: [email protected]; [email protected]). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TAP.2012.2186273

Funding

Manuscript received August 31, 2011; revised November 10, 2011; accepted November 10, 2011. Date of publication January 31, 2012; date of current version April 06, 2012. This work was supported by ERC, Inc., under PO RS080704 in collaboration with the Aerospace Corporation. S. D. Gedney and J. C. Young are with the Department of Electrical and Computer Engineering, University of Kentucky, Lexington, KY 40506-0046 USA (e-mail: [email protected]; [email protected]). T. C. Kramer and J. A. Roden are with The Aerospace Corporation, Chantilly, VA 20151 USA (e-mail: [email protected]; [email protected]). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TAP.2012.2186273

FundersFunder number
Aerospace Corporation
ERC, Inc.PO RS080704

    Keywords

    • Discontinuous Galerkin methods
    • electromagnetic propagation in dispersive media
    • finite element time-domain
    • high-order methods

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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