Abstract : Richtmeyer shown non-metalized dielectric objects similar like metallic cavity in DRA in 1939.After various research in 1960 DRAs used for RF filters, oscillators at microwave frequency applications. In 1980 sager suggested DR with enhance the radiation resistance of electrically short probes and loops .The high permittivity DRs aim to Structured experimental investigations on dielectric resonator antennas were first carried out by Long et al in 1983. An antenna with ceramics material operating in microwave frequency with dielectric permittivity ?r ? 10 is known as dielectric resonator antenna. This DRA describes three fundamental like hemispherical, cylindrical and rectangular.
