Title :
Wideband high-gain EBG resonator antenna employing an unprinted composite superstrate
Author :
Hashmi, Raheel M. ; Zeb, Basit Ali ; Esselle, Karu P.
Author_Institution :
Dept. of Eng., Macquarie Univ., Sydney, NSW, Australia
Abstract :
A single-feed high-gain EBG resonator antenna with extremely wideband performance is presented. The bandwidth is enhanced through a novel composite superstrate made from a combination of unprinted dielectric slabs with uniform thickness. The composite superstrate leads to wide defect-mode bandwidth and offers slowly increasing reflection phase profile over a wide frequency band. A single slot is used to excite the cavity. Peak antenna gain of 17.17 dBi with half-power gain bandwidth of 33.9% centered at 12.6 GHz is predicted. More than 100% increase in 3-dB directivity bandwidth with 55% reduction in aperture size is obtained as compared to conventional designs.
Keywords :
dielectric resonator antennas; microstrip antennas; composite superstrate; frequency 12.7 GHz; gain 17.17 dB; gain 3 dB; peak antenna gain; reflection phase; unprinted composite superstrate; unprinted dielectric slabs; wideband high gain EBG resonator antenna; Broadband antennas; Dielectrics; Metamaterials; Periodic structures; Slabs; Wideband;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6710800
