A locally conformal finite difference time domain technique for modeling arbitrary shaped objects

Author

Dey, S. ; Mittra, R.

Author_Institution

Electromagn. Commun. Res. Lab., Pennsylvania State Univ., University Park, PA, USA

Volume

1

fYear

1998

fDate

21-26 June 1998

Firstpage

584

Abstract

The authors have previously reported a simple yet accurate technique for the FDTD analysis of curved PEC bodies using a locally conformal grid. This approach does not require borrowing and interpolation of the electric field at the object boundary. In this paper, we extend this technique to arbitrarily shaped dielectric bodies and illustrate its application by investigating a partially filled rectangular waveguide structure and a partially filled cavity.

Keywords

dielectric-loaded waveguides; finite difference time-domain analysis; rectangular waveguides; arbitrarily shaped dielectric bodies; arbitrary shaped objects modeling; curved PEC bodies; electric field; locally conformal FDTD method; locally conformal grid; partially filled cavity; partially filled rectangular waveguide structure; Algorithm design and analysis; Dielectric constant; Electromagnetic modeling; Equations; Finite difference methods; Geometry; Interpolation; Rectangular waveguides; Surface treatment; Waveguide components;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1998. IEEE

Conference_Location

Atlanta, GA, USA

Print_ISBN

0-7803-4478-2

Type

conf

DOI

10.1109/APS.1998.699207

Filename

699207