Title :
FDTD Modeling of Electromagnetic Wave Scattering From a Wedge With Perfectly Reflecting Boundaries: Comparisons Against Analytical Models and Calibration
Author :
Çakír, Gonca ; Sevgi, Levent ; Ufimtsev, Pyotr Ya
Author_Institution :
Electron. & Commun. Eng. Dept., Kocaeli Univ., Kocaeli, Turkey
fDate :
7/1/2012 12:00:00 AM
Abstract :
A classical, canonical problem of electromagnetic wave scattering from a nonpenetrable wedge is modeled with the finite-difference time-domain (FDTD) method, and results are calibrated against the analytical reference solution. A novel, numerical multistep diffraction coefficient calculation model is introduced. Comparisons against analytical exact solutions as well as high frequency asymptotic (HFA) techniques such as the uniform theory of diffraction (UTD) and parabolic equation (PE) method are also given.
Keywords :
calibration; electromagnetic wave scattering; finite difference time-domain analysis; FDTD modeling; HFA techniques; PE method; UTD; analytical reference solution; calibration; electromagnetic wave scattering; finite-difference time-domain method; high frequency asymptotic techniques; nonpenetrable wedge; numerical multistep diffraction coefficient calculation model; parabolic equation method; uniform theory of diffraction; Diffraction; Finite difference methods; Lighting; Mathematical model; Numerical models; Scattering; Time domain analysis; Code calibration; FDTD; diffraction; electromagnetic scattering; exact integrals; exact series; finite-difference time-domain; geometrical optics (GO); hard boundary condition; high frequency asymptotics (HFA); numerical methods; physical optics (PO); physical theory of diffraction (PTD); soft boundary condition; uniform theory of diffraction (UTD);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2012.2196948
