Abstract
A novel Quadruple-shaped Dielectric Resonator Antenna (DRA) excited by a coaxial feed is investigated. The dielectric used for investigation is biodegradable polymer based dielectric material having a dielectric constant (εr) of 3.45 and dielectric loss tangent (δ) =0.02. The resulting antenna offers broad impedance bandwidth of 63.2% for |S11| < −10 dB from 2.8 to 5.2 GHz frequency band. This antenna is suitable for practical use in WLAN (5.15-5.35 GHz) and Wi-Max (3.4-3.69 GHz) applications. The results show the peak gain of the antenna is 4.5dBi at resonant frequency 3.8 GHz. It is also observed that the new proposed structure of Quadrupleshaped DRA offers broadside radiation patterns and high efficiency for the entire operating band. The simulated and experimental results are well in agreement.
Index Terms
Biodegradable Polymer; Dielectric Resonator Antenna; Quadruple-shaped DRA; Wi-Max; WLAN
