The application of FDTD in hybrid methods for cavity scattering analysis

Author

Chia, Tse-Tong ; Burkholder, Robert J. ; Lee, Robert

Author_Institution

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

Volume

43

Issue

10

fYear

1995

fDate

10/1/1995 12:00:00 AM

Firstpage

1082

Lastpage

1090

Abstract

In a previous paper (see ibid., vol.41, p.1560-1569, no.11, 1993), we presented the hybrid ray-FDTD method for analyzing the electromagnetic scattering from two-dimensional cavities with complex terminations. In this paper, we present three hybrid methods for analyzing the scattering from three-dimensional (3-D) inlet cavities. In these hybrid methods, the finite-difference time-domain (FDTD) method is used to determine the reflection matrix associated with the termination. Modal analysis, physical optics (PO), or rays are used to analyze the remaining front section of the cavity. Representative results are presented

Keywords

electromagnetic wave reflection; electromagnetic wave scattering; finite difference time-domain analysis; matrix algebra; physical optics; FDTD; PO; cavity scattering analysis; complex terminations; electromagnetic scattering; finite-difference time-domain; front section; hybrid methods; hybrid ray-FDTD method; modal analysis; physical optics; radar cross section; reflection matrix; three-dimensional inlet cavities; Electromagnetic analysis; Electromagnetic scattering; Finite difference methods; Modal analysis; Optical reflection; Optical scattering; Physical optics; Radar scattering; Region 3; Time domain analysis;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.467644

Filename

467644