Electric dipole over a dielectric layer
Abstract
An electric dipole situated above a dielectric layer is able to excite electromagnetic surface waves propagating along the surface of the dielectric layer. The number of excited surface waves as well as the field components are dependent on frequency, thickness and dielectric constant of the layer. It is shown that for a given frequency and a given dielectric constant there exists a characteristic thickness for the layer. If the thickness of the dielectric layer is smaller than the characteristic thickness only one single surface wave will be excited. Further, for a given frequency and a given dielectric constant there exists an optimal thickness for the layer at which the field components of the surface wave become a maximum.
 Publication:

Kleinheubacher Berichte
 Pub Date:
 1980
 Bibcode:
 1980KlBer..23..135G
 Keywords:

 Dielectrics;
 Electric Dipoles;
 Electromagnetic Surface Waves;
 Wave Excitation;
 Lossless Materials;
 Saddle Points;
 Thickness;
 Wave Equations;
 Communications and Radar