Finite-difference time-domain analysis of gyrotropic media. I. Magnetized plasma

Author

Hunsberger, Forrest ; Luebbers, Raymond ; Kunz, Konstantin

Author_Institution

Dept. of Electr. & Comput. Eng., Pennsylvania State Univ., University Park, PA, USA

Volume

40

Issue

12

fYear

1992

fDate

12/1/1992 12:00:00 AM

Firstpage

1489

Lastpage

1495

Abstract

When subjected to a constant magnetic field, both plasmas and ferrites exhibit anisotropic constitutive parameters. For electronic plasmas this anisotropy must be described by using a permittivity tensor in place of the usual scalar permittivity. Each member of this tensor is also very frequency dependent. A finite-difference time-domain formulation which incorporates both anisotropy and frequency dispersion, enabling the wideband transient analysis of magnetoactive plasma, is described. Results are shown for the reflection and transmission through a magnetized plasma layer, with the direction of propagation parallel to the direction of the biasing field. A comparison to frequency-domain analytic results is included

Keywords

electromagnetic wave propagation in plasma; electromagnetic wave reflection; electromagnetic wave transmission; finite difference time-domain analysis; permittivity; FDTD; anisotropy; electromagnetic propagation; electromagnetic reflection; electromagnetic transmission; finite-difference time-domain formulation; frequency dispersion; gyrotropic media; magnetized plasma layer; magnetoactive plasma; permittivity tensor; wideband transient analysis; Anisotropic magnetoresistance; Finite difference methods; Gyrotropism; Magnetic anisotropy; Magnetic fields; Permittivity; Perpendicular magnetic anisotropy; Plasmas; Tensile stress; Time domain analysis;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.204739

Filename

204739