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

Volume

44

Issue

1

fYear

1996

fDate

1/1/1996 12:00:00 AM

Firstpage

12

Lastpage

22

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;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.477523

Filename

477523