Novel electric-monopole mode dielectric resonator antenna

In this paper, a novel dielectric resonator (DR) antenna is reported. In the lowest order mode, the antenna radiates like an electric-monopole. The dimensions of the antenna are much smaller than a previously reported structure radiating in a similar mode. For example, for an antenna fabricated out of /spl epsiv//sub r/=20 material, the diameter and height of the DR are approximately 0.08 /spl lambda//sub 0/ each. A first order theory to predict the resonant frequency of the antenna is given. Experimental results on a sample antenna are presented.