Alternative FDTD Updating Schemes for Anisotropic Materials

Author

Kung, Christopher ; Lee, Robert

Author_Institution

Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH, USA

Volume

57

Issue

12

fYear

2009

Firstpage

3903

Lastpage

3910

Abstract

A novel way of looking at the anisotropic finite difference time domain(FDTD) method is proposed based on the finite element point of view, which allows for a systematic approach of deriving anisotropic FDTD stencils without resorting to interpolation. A new stencil for anisotropic material media that properly accounts for material interfaces and perfect electric conductor boundaries is derived. This new stencil is tested and compared to analytical solutions and numerical solutions based on implicit finite element methods.

Keywords

conductors (electric); finite difference time-domain analysis; finite element analysis; interpolation; anisotropic FDTD stencils; anisotropic materials; finite difference time domain method; finite element point; implicit finite element methods; interpolation; numerical solutions; perfect electric conductor boundaries; Anisotropic magnetoresistance; Boundary conditions; Conducting materials; Equations; Finite difference methods; Finite element methods; Helium; Interpolation; Testing; Time domain analysis; Finite difference; anisotropic materials; finite element; perfect electric conductor (PEC); stencil;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2009.2026665

Filename

5159518