Cylindrical 3D PML-PLRC-FDTD schemes for frequency-dispersive and inhomogeneous media

Author

Teixeira, F.L. ; Chew, W.C.

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA

Volume

2

fYear

1999

fDate

11-16 July 1999

Firstpage

1304

Abstract

We present three-dimensional (3D) finite-difference time-domain (FDTD) schemes for transient simulation of electromagnetic wave propagation in complex (inhomogeneous and frequency-dispersive media with conductive loss) media and cylindrical coordinates. The proposed cylindrical FDTD scheme incorporates an extension of the perfectly matched layer (PML) absorbing boundary condition (ABC) to 3D cylindrical coordinates coupled to the piecewise-linear recursive convolution (PLRC) algorithm for dispersive media, accounting for both Lorentz and Debye multi-species frequency-dispersive models. Both split-field and unsplit (anisotropic medium) formulations of the cylindrical PML-PLRC-FDTD scheme are implemented and compared.

Keywords

anisotropic media; conducting bodies; convolution; dispersive media; electromagnetic wave absorption; electromagnetic wave propagation; finite difference time-domain analysis; losses; piecewise linear techniques; transient analysis; 3D cylindrical coordinates; 3D finite-difference time-domain; absorbing boundary condition; conductive loss; conductive media; cylindrical 3D PML-PLRC-FDTD; electromagnetic wave propagation; frequency-dispersive media; inhomogeneous media; multi-species frequency-dispersive models; perfectly matched layer; piecewise-linear recursive convolution algorithm; split-field formulation; transient simulation; unsplit-field formulation; Boundary conditions; Electromagnetic propagation; Electromagnetic transients; Finite difference methods; Frequency; Nonhomogeneous media; Perfectly matched layers; Piecewise linear techniques; Propagation losses; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1999. IEEE

Conference_Location

Orlando, FL, USA

Print_ISBN

0-7803-5639-x

Type

conf

DOI

10.1109/APS.1999.789553

Filename

789553