Design and analysis of rectangular dielectric resonator antenna for wireless application

In this paper, the design of a rectangular dielectric resonator antenna (RDRA) with microstrip line feed is proposed along with the corresponding return loss characteristics and the radiation performance in far-field region in C-band of microwave frequencies using finite element method (Ansoft High Frequency Structure Simulator). With proper choice of other parameters, the dielectric material with dielectric constant value lying in the range from 10 to as high as 100, direct us to achieve the desired resonant frequency of 5.5 GHz. Here, to attain a better return loss and radiation efficiency, we have implemented few approaches like modification of the microstrip feed arrangement and the RDRA structure.