The History of the Development of the Dielectric Resonator Antenna

The dielectric resonator antenna has been in existence for almost 25 years, and over that time a great deal of research has been conducted that demonstrates its positive attributes as a broad band, efficient radiator with great potential, especially for high frequency applications. Its inherently low loss behavior results both from its lack of conducting materials to eliminate ohmic losses and its absence of a dielectric layer that might otherwise allow energy to be guided away from the desired radiation into space. A chronological history of this class of radiator is presented.