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

fYear

2013

fDate

7-13 July 2013

Firstpage

278

Lastpage

279

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE

Conference_Location

Orlando, FL

ISSN

1522-3965

Print_ISBN

978-1-4673-5315-1

Type

conf

DOI

10.1109/APS.2013.6710800

Filename

6710800