Title :
Miniaturized circular waveguide probe antennas using ENNZ metamaterial liners
Author :
Pollock, Justin G. ; Iyer, Ashwin K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB, Canada
Abstract :
This paper investigates the miniaturization of circular open-ended waveguide (OEWG) probe antennas by lining their interior with thin epsilon-negative-and-near-zero (ENNZ) metamaterial liners. Comparisons are drawn between the radiation characteristics of the miniaturized and conventional-sized OEWG probes, focusing on their return loss, far-field patterns, and radiation efficiency.
Keywords :
antenna radiation patterns; metamaterial antennas; waveguide antennas; ENNZ metamaterial liners; OEWG probe antennas; circular open-ended waveguide antennas; epsilon-negative-and-near-zero metamaterial liners; far-field patterns; miniaturized antennas; radiation efficiency; return loss; Apertures; Cutoff frequency; Dispersion; Electromagnetic waveguides; Metamaterials; Probes; Standards;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904501
