Title :
Numerical Evaluations of Diffraction Formulas for the Canonical Wedge-Scattering Problem [Testing Ourselves]
Author :
Hacivelioglu, Feray ; Sevgi, Levent ; Ufimtsev, P.Ya.
Author_Institution :
Electron. & Commun. Eng. Dept., Dogus Univ., Istanbul, Turkey
Abstract :
Numerical computations of different diffraction representations for the canonical wedge-scattering problem are discussed. Representations include total-field exact series summation, exact diffraction integral, and the Physical Optics (PO), Physical Theory of Diffraction (PTD), and Parabolic Equation (PE) techniques, and the Uniform Theory of Diffraction (UTD). Numerical challenges and advantages of each are given.
Keywords :
electromagnetic wave scattering; integral equations; integration; parabolic equations; physical optics; physical theory of diffraction; PE; PO; PTD; UTD; canonical wedge-scattering problem; diffraction formulas; diffraction representations; exact diffraction integral; numerical computations; numerical evaluations; numerical integration; parabolic equation techniques; physical optics; physical theory-of-diffraction; total-field exact series summation; uniform theory-of-diffraction; Boundary conditions; Diffraction; Integral equations; Lighting; Mathematical model; Numerical computations; Optical diffraction; Fresnel integral; PO; PTD; UTD; Wedge scattering; cylindrical wave; diffracted field; exact Integrals; exact series; high frequency asymptotics; line source; numerical integration; parabolic equation; plane wave; reflected field;
Journal_Title :
Antennas and Propagation Magazine, IEEE
DOI :
10.1109/MAP.2013.6735531
