Title :
An integrated antenna for cognitive radios
Author :
Augustin, Gijo ; Denidni, Tayeb A.
Author_Institution :
Center for Energy, Mater. & Telecommun. (EMT), Univ. of Quebec, Montreal, QC, Canada
Abstract :
An integrated antenna utilizing uniplanar nature of coplanar wave guide with wide and narrow band characteristics for category-A cognitive radios is presented. The space between two tapering which forms the ultra-wideband antenna (UWBA), where the surface current is minimum, is effectively used for the integration of a narrow band antenna (NBA). The UWBA and NBA provide 2:1 VSWR bandwidths from 2.7GHz to 11GHz and 5.0 GHz to 5.5GHz, respectively with isolation better than 15dB. The radiation characteristics are suitable for cognitive radio systems, where a UWBA is used for spectrum sensing and NBA for communication.
Keywords :
UHF antennas; antenna radiation patterns; cognitive radio; coplanar waveguides; microwave antennas; ultra wideband antennas; NBA; UWBA; category-A cognitive radios; coplanar waveguide; frequency 2.7 GHz to 11 GHz; integrated antenna; narrowband antenna; narrowband characteristics; radiation characteristics; spectrum sensing; ultrawideband antenna; uniplanar nature; wideband characteristics; Antenna measurements; Cognitive radio; Coplanar waveguides; Slot antennas; Ultra wideband antennas;
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.2012.6348877
