Title :
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
fDate :
11/1/1998 12:00:00 AM
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
