Calculation of diffraction coefficients of three-dimensional infinite conducting wedges using FDTD

Author

Anantha, Veeraraghavan ; Taflove, Allen

Author_Institution

Cellular Infrastruct. Group, Motorola Inc., Arlington Heights, IL, USA

Volume

46

Issue

11

fYear

1998

fDate

11/1/1998 12:00:00 AM

Firstpage

1755

Lastpage

1756

Abstract

The finite-difference time-domain (FDTD) method is applied to obtain the three-dimensional (3-D) dyadic diffraction coefficient of infinite right-angle perfect electrical conductor (PEC) wedges illuminated by a plane wave. The FDTD results are in good agreement with the well-known asymptotic solutions obtained using the uniform theory of diffraction (UTD). In principle, this method can be extended to calculate diffraction coefficients for 3-D infinite material wedges having a variety of wedge angles and compositions

Keywords

conducting bodies; electromagnetic wave propagation; electromagnetic wave scattering; finite difference time-domain analysis; 3-D dyadic diffraction coefficient; FDTD; PEC wedges; UTD; compositions; diffraction coefficients; finite-difference time-domain method; infinite right-angle perfect electrical conductor wedges; plane wave; three-dimensional infinite conducting wedges; uniform theory of diffraction; wedge angle; Composite materials; Conducting materials; Electromagnetic diffraction; Electromagnetic scattering; Finite difference methods; Fourier transforms; Geometry; Physical theory of diffraction; Polarization; Time domain analysis;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.736642

Filename

736642