Title :
UTD-diffraction coefficients for higher order wedge diffracted fields
Author_Institution :
Div. of Commun. Syst., Nat. Defence Res. Establ., Linkoping, Sweden
fDate :
6/1/1996 12:00:00 AM
Abstract :
An asymptotic expansion of a multiple integral for knife-edge diffraction is derived. The expansion expresses the field in terms of single-edge diffraction. By considering this expression, a similar expansion for higher order UTD diffracted fields is proposed. By means of a set of transition functions, the result removes some of the shortcomings of the original set out of the UTD when the incident field is not a ray-optical field
Keywords :
geometrical theory of diffraction; integral equations; ray tracing; UTD-diffraction coefficients; asymptotic expansion; higher order wedge diffracted fields; knife-edge diffraction; multiple integral; ray-optical field; single-edge diffraction; transition functions; Command and control systems; Communication systems; Extraterrestrial phenomena; Geometrical optics; Lighting; Optical diffraction; Optical reflection; Physical theory of diffraction; Turning;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
