Analysis of Dielectric Resonator Loaded Antenna

This thesis presents design of dielectric resonator loaded antenna for wireless applications. The design is a Different shape Dielectric Resonator Antenna (DRA) using different material for wireless applications. Here the DRA is excited by conformal patch connected to co-axial feeding which is an effective feed mechanism and more efficient in energy coupling than other types of feeding techniques. The shape of dielectric resonator is to improve the performance of the antenna. From the Simulation results it can be observed that achieving an impedance bandwidth from 2.3 to 3 GHz is 61.3 MHz at 2.6 GHz , gain is 3.9 dB , Directivity is 6.7 dBi and Efficiency 58.2 %. Parametric study is done by varying the shapes of the Dielectric Resonator (Simple Square, Hollow Square, Cylindrical and Hollow Cylindrical etc.) and Dielectric Constant Another parametric study is carried out by varying the Dielectric Material (Fr-4, Teflon and Ceramic) of the final design. Index Terms – Dielectric Resonator Antenna (DRA), Matching Bandwidth, Hollow Cylindrical Dielectric Resonator Antenna (HCDRA), S11parameter and Impedance Bandwidth (IBW).