Title :
A spherical wave representation of the dyadic Green´s function for a wedge
Author :
Buyukdura, O.M. ; Goad, Stephen D. ; Kouyoumjian, Robert G.
Author_Institution :
Middle East Tech. Univ., Ankara, Turkey
fDate :
1/1/1996 12:00:00 AM
Abstract :
A new expansion for the dyadic Green´s function of a perfectly conducting wedge is derived. It is expressed in terms of a discrete series of spherical vector wave functions. This expansion converges well, except near a spherical surface which passes through the source point. The convergence is particularly rapid in the paraxial region. This results in the identification of an edge wave which can play an important role in the radiation from sources and scatterers at the edge of the wedge
Keywords :
Green´s function methods; convergence of numerical methods; electromagnetic wave scattering; wave functions; convergence; dyadic Green´s function; edge wave; paraxial region; scatterers; source point; spherical surface; spherical vector wave functions; spherical wave representation; wedge; Computational efficiency; Convergence; Eigenvalues and eigenfunctions; Electromagnetic fields; Electromagnetic scattering; Green function; Green´s function methods; Helium; Laboratories; Wave functions;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
