Title :
A cognitive radio antenna design based on optically pumped reconfigurable antenna system (OPRAS)
Author :
Tawk, Y. ; Hemmady, S. ; Christodoulou, C.G. ; Costantine, J. ; Balakrishnan, G.
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of New Mexico, Albuquerque, NM, USA
Abstract :
This paper presents a new antenna scheme for cognitive radio communication. The antenna structure consists of two ports. The first antenna port is a UWB structure for channel sensing while the second one is a reconfigurable structure for communication. The reconfigurability is based on integrating laser diodes within the antenna substrate in order to activate the photoconductive switches. A prototype was fabricated and tested. A good agreement between the simulation and the measurement data is noticed. A coupling of less than -20 dB is achieved between the 2 antenna ports.
Keywords :
antennas; cognitive radio; OPRAS; UWB structure; cognitive radio antenna design; laser diodes; optical pumped reconfigurable antenna system; Antenna measurements; Antenna radiation patterns; Cognitive radio; Couplings; Loss measurement; Sensors; cognitive radio; coupling; photoconductive switches; reconfigurable antenna;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5996478
