Title :
An asymptotic evaluation of radiation surface integrals for high frequency wave problems which reduces to the UTD ray format
Author :
Carluccio, Giorgio ; Albani, Matteo ; Pathak, Prabhakar H.
Author_Institution :
Dipt. di Ing. dell´´Inf., Univ. degli Studi di Siena, Siena, Italy
Abstract :
The field scattered by a scattering body or by an aperture in the free space (or in an unbounded homogenous medium) can be described in terms of a double integral. In this paper we present a new asymptotic uniform evaluation for this kind of integrals that is expressed in the format of the uniform geometrical theory of diffraction (UTD), which is convenient for numerical computations.
Keywords :
geometrical theory of diffraction; integral equations; UTD ray format; asymptotic radiation surface integral evaluation; double integral; free space; high frequency wave problems; unbounded homogenous medium; uniform geometrical theory of diffraction; Apertures; Frequency; Geometrical optics; Hafnium; Integral equations; Optical diffraction; Optical scattering; Physical theory of diffraction; Scattering parameters; Surface waves;
Conference_Titel :
Electromagnetics in Advanced Applications, 2009. ICEAA '09. International Conference on
Conference_Location :
Torino
Print_ISBN :
978-1-4244-3385-8
Electronic_ISBN :
978-1-4244-3386-5
DOI :
10.1109/ICEAA.2009.5297448
