Title :
A novel circularly polarized dielectric resonator antenna for UWB applications
Author :
Haraz, Osama M. ; Sebak, Abdel-Razik
Author_Institution :
Concordia Univ., Montreal, QC, Canada
Abstract :
In this paper, a novel design for circularly polarized UWB DRA antenna is presented. The proposed antenna consists of half circular cylindrical DRA mounted on a finite ground plane. The calculated bandwidth of the proposed DRA antenna is about 90% ranges from 4 GHz to 10.5 GHz for reflection coefficient Sll less than -lOdB. Also, it has a relatively stable radiation patterns over its whole frequency band of interest. The proposed antenna has an axial ratio bandwidth of 27% starts from 5.3 GHz to 7 GHz for the axial ratio less than 3dB. Compared to the conventional patch reference antenna; the proposed DRA antenna has enhanced impedance bandwidth, axial ratio bandwidth, gain, and total efficiency.
Keywords :
antenna radiation patterns; dielectric resonator antennas; ultra wideband antennas; UWB antenna; antenna radiation patterns; axial ratio bandwidth; bandwidth 4 GHz to 10.5 GHz; circularly polarized dielectric resonator antenna; impedance bandwidth enhancement; patch reference antenna; Antenna radiation patterns; Bandwidth; Dielectric resonator antennas; Reflector antennas; Ultra wideband antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-4967-5
DOI :
10.1109/APS.2010.5562143
