Dyadic Green's function of a sphere with an eccentric spherical inclusion.
An exact, analytical solution to the problem of point-source radiation in the presence of a sphere with an eccentric spherical inclusion has been obtained by combined use of the dyadic Green's function formalism and the indirect mode-matching technique. The end result of the analysis is a set of linear equations for the vector wave amplitudes of the electric Green's dyad. The point source can be anywhere, even within the aforesaid nonspherical body, and there is no restriction with regard to the electrical properties in any part of space. Several checks confirm that this solution obeys the energy conservation and reciprocity principles. Numerical results are presented for an electric Hertz dipole radiating from within an acrylic sphere, which contains an eccentric spherical cavity.
Moneda
Angela P
AP
Department of Electrical and Computer Engineering, Faculty of Engineering, Aristotle University of Thessaloniki, Greece.
Chrissoulidis
Dimitrios P
DP