Title :
Metamaterial-inpsired wideband circular monopole antenna
Author :
He, Yuchu ; Eleftheriades, Geroge V.
Author_Institution :
Electr. & Comput. Eng, Univ. of Toronto, Toronto, ON, Canada
Abstract :
A compact metamaterial-inspired circular monopole antenna is proposed for wideband operation. In [1], a rectangular monopole antenna with metamaterial loading has been proposed, which provides a conceptual route for implementing small resonant antennas. In this paper, a circular - shaped monopole is implemented based on the design in [1]. The new antenna provides wider bandwidth, better radiation efficiency and better tunability. The proposed antenna can achieve 220MHz bandwidth covering the 2.3GHz band. A fabricated prototype has compact dimensions of 32mm×30mm×1.59mm. The simulated radiation efficiency is 83% and the measured efficiency is 73%.
Keywords :
UHF antennas; broadband antennas; metamaterial antennas; monopole antennas; tuning; circular shaped monopole; frequency 2.3 GHz; metamaterial-inpsired wideband circular monopole antenna; radiation efficiency; rectangular monopole antenna; small resonant antennas; tunability; Antenna measurements; Bandwidth; Loaded antennas; Prototypes; Resonant frequency; Transmission line measurements;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349423
