Title :
A frequency and radiation pattern reconfigurable antenna system with sensing capabilities for cognitive radio
Author :
Tawk, Y. ; Christodoulou, C.G. ; Costantine, J. ; Barbin, S.E.
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of New Mexico, Albuquerque, NM, USA
Abstract :
This paper presents an antenna system suitable for cognitive radio applications. It consists of two pairs of antennas. The first one is a wide band antenna that monitors the channel in order to identify the idle parts of the spectrum. The second antenna has a frequency and radiation pattern tuning ability. This antenna communicates at different frequency bands as well as at different radiation directions. The directions of radiation depend on the locations of cognitive radio users. A prototype is fabricated, tested and compared with the simulated design where good analogy is found.
Keywords :
antenna radiation patterns; antenna testing; broadband antennas; cognitive radio; antenna radiation directions; antenna radiation pattern tuning; cognitive radio; frequency tuning; reconfigurable antenna system; sensing capability; wideband antenna; Antenna measurements; Antenna radiation patterns; Cognitive radio; Frequency measurement; Reflector antennas; Sensors; Transmitting 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.2012.6348489
