Time-domain finite-element modeling of dispersive media

Dan Jiao; Jian Ming Jin

doi:10.1109/7260.923034

Time-domain finite-element modeling of dispersive media

Research output: Contribution to journal › Letter › peer-review

Abstract

A general formulation is described for time-domain finite-element modeling of electromagnetic fields in a general dispersive medium. The formulation is based on the second-order vector wave equation and incorporates the dispersion effect of a medium via a recursively evaluated convolution integral. This evaluation is kept to second order in accuracy using linear interpolation within each time step. Numerical examples are given to validate the proposed formulation.

Original language	English (US)
Pages (from-to)	220-222
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	11
Issue number	5
DOIs	https://doi.org/10.1109/7260.923034
State	Published - May 2001

Keywords

Dispersive medium
Finite-element method

ASJC Scopus subject areas

Condensed Matter Physics
Electrical and Electronic Engineering

Online availability

10.1109/7260.923034

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title = "Time-domain finite-element modeling of dispersive media",

abstract = "A general formulation is described for time-domain finite-element modeling of electromagnetic fields in a general dispersive medium. The formulation is based on the second-order vector wave equation and incorporates the dispersion effect of a medium via a recursively evaluated convolution integral. This evaluation is kept to second order in accuracy using linear interpolation within each time step. Numerical examples are given to validate the proposed formulation.",

keywords = "Dispersive medium, Finite-element method",

author = "Dan Jiao and Jin, {Jian Ming}",

note = "Funding Information: Manuscript received September 2, 2000; revised February 5, 2001. This work was supported by a grant from AFOSR via the MURI Program under Contract F49620-96-1-0025. The authors are with the Center for Computational Electromagnetics, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801-2991 USA. Publisher Item Identifier S 1531-1309(01)04012-0.",

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AU - Jiao, Dan

AU - Jin, Jian Ming

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PY - 2001/5

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N2 - A general formulation is described for time-domain finite-element modeling of electromagnetic fields in a general dispersive medium. The formulation is based on the second-order vector wave equation and incorporates the dispersion effect of a medium via a recursively evaluated convolution integral. This evaluation is kept to second order in accuracy using linear interpolation within each time step. Numerical examples are given to validate the proposed formulation.

AB - A general formulation is described for time-domain finite-element modeling of electromagnetic fields in a general dispersive medium. The formulation is based on the second-order vector wave equation and incorporates the dispersion effect of a medium via a recursively evaluated convolution integral. This evaluation is kept to second order in accuracy using linear interpolation within each time step. Numerical examples are given to validate the proposed formulation.

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KW - Finite-element method

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Time-domain finite-element modeling of dispersive media

Abstract

Keywords

ASJC Scopus subject areas

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