Title :
Integrated dual-purpose narrow/ultra-wide band antenna for cognitive radio applications
Author :
Li, Yingsong ; Li, Wenxing ; Mittra, Raj
Author_Institution :
Coll. of Inf. & Commun. Eng., Harbin Eng. Univ., Harbin, China
Abstract :
An integrated narrow/ultra-wideband antenna composite is proposed for use in cognitive radio applications. The proposed antenna consists of two slot antennas with individual feeds sharing the same substrate. The ultra-wideband (UWB) antenna covers the entire UWB band from 3.1GHz to 10.6GHz and is used for channel sensing. The integrated narrow band antenna operates at 8.2GHz to 9.4GHz communicate with other wireless devices. The two ports have a good isolation, which is better than -10dB. The design is suitable for cognitive radio applications where the UWB antenna is required for spectrum sensing, and where the narrowband antenna is used for reconfigurable operation, which can be tuned over a wide bandwidth by changing its dimensions of the isosceles triangular radiation patch.
Keywords :
antenna feeds; antenna radiation patterns; cognitive radio; microstrip antennas; radio spectrum management; slot antennas; ultra wideband antennas; wireless channels; UWB antenna; antenna design; channel sensing; cognitive radio application; frequency 3.1 GHz to 10.6 GHz; integrated dual-purpose narrow/ultra-wide band antenna composite; isolation; isosceles triangular radiation patch; slot antenna feed; spectrum sensing; wireless device; Antenna radiation patterns; Cognitive radio; Sensors; 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.2012.6348870
