10027/11145
Marco Valentino
Marco
Valentino
Danilo Erricolo
Danilo
Erricolo
Exact radiation of a dipole in the presence of a circular aperture in a ground plane backed by a spheroidal cavity and covered with an isorefractive diaphragm
University of Illinois at Chicago
2014
electromagnetic scattering
cavity
spheroidal function
isorefractive media
complex media
2014-02-05 00:00:00
Journal contribution
https://indigo.uic.edu/articles/journal_contribution/Exact_radiation_of_a_dipole_in_the_presence_of_a_circular_aperture_in_a_ground_plane_backed_by_a_spheroidal_cavity_and_covered_with_an_isorefractive_diaphragm/10957076
An oblate semi-spheroidal cavity with metallic walls flush-mounted under a metallic
ground plane is coupled to the half-space above the ground plane through an aperture
that corresponds to the interfocal disk of the oblate spheroidal system. A diaphragm is
located across the aperture. The diaphragm material, the material filling the cavity, and the half-space are isorefractive to each other. A new exact solution is obtained for the radiation of an electric or a magnetic dipole located on the symmetry axis of the structure and axially oriented. The exact solution is expressed in terms of series containing oblate spheroidal functions. These series are evaluated to provide a benchmark solution for a primary source located either inside the cavity below the diaphragm, or outside the cavity
in the unbounded medium.