Designing multiband in cylindrical dielectric resonator antenna (CDRA) for wireless applications

Abstract

In this paper, we design a cylindrical dielectric resonator antenna with multiband. In metallic printed structure, various methods are implemented to achieve multiband in patch antennas but they are not efficient in dielectric resonators. so we are employing a new type of method called a partially ground method in cylindrical dielectric resonator antenna (CDRA) structure which gives us multiple resonance at a single antenna. This CDR antenna suitable for multiband applications. Simulation results shows that the proposed antenna achieves an impedance bandwidth from 2GHz to 6GHz covering various wireless bands like WIFI, WLAN, WIMAX, Bluetooth. The proposed antenna design gives the appreciable gain and better radiation pattern at the resonant frequencies. The result has been validated in HFSS.