Design and Analysis of Capacitive and Inductive Fed Rectangular Dielectric Resonator Antenna

Abstract

 In this paper a capacitive and an inductive fed rectangular dielectric resonator antenna (RDRA) have designed and analysed through 3D Electromagnetic Simulation Software HFSS. Solution frequency for analysing DRA taken as 3.97 GHz,maximum number of passes as 20,maximum delta S as 0.02 and sweep type as Fast. DRA made with Arlon AR1000(tm) with permittivity of 10 and patches are mounted on a FR_4 epoxy substrate with permittivity (ε_r) of 4.4. The capacitive feed DRA resonating maximum at 9.4GHz , produces return loss of -28.7809 dB, Q factor of 18.8, and 87% efficiency where as inductive feed resonates at 6.1 GHz produces return loss of –12.45 dB, Q factor of 40.66 , and 87% efficiency.