3.5 GHz rectangular dielectric resonator antenna

In this paper, dielectric resonator antenna operated at 3.5 GHz was design and simulated using CST Microwave Studio and subsequently fabricated. Direct microstrip line of 50 Omega was used as the feeder. In this design, rectangular shape was used as the dielectric resonator as it offers more option to control the resonant frequency. The position of rectangular DR was varied to determine the best coupling and the distance was found to be 6 mm. The simulated results of the return loss, resonant frequency together with radiation pattern were compared with the measured results. It was found that rectangular DRA has potential to be used in wireless system.