Title :
Pattern reconfigurable planar UWB antenna array for future cognitive radio portable devices
Author :
Aboufoul, Tamer ; Shoaib, Imran ; Alomainy, Akram ; Xiaodong Chen
Author_Institution :
Sch. of Electron. Eng. & Comput. Sci., Queen Mary Univ. of London, London, UK
Abstract :
A novel pattern reconfigurable planar ultra wideband 2×2 antenna array is presented. This UWB planar array has a high gain that can be useful in sensing the spectrum for cognitive radio applications. The array can provide basic pattern reconfiguration to enhance the scanning and the communication performance in cognitive radio operation by limiting interference coming from specific directions. The reflection coefficient, radiation patterns, gain and total efficiency simulations of the UWB mode and the reconfiguration modes are presented. The pattern reconfigurablity of the proposed antenna is also investigated by simulating indoor coverage and power received in a realistic environment for different pattern configurations.
Keywords :
antenna radiation patterns; cognitive radio; indoor radio; interference suppression; planar antenna arrays; portable instruments; radio receivers; radiofrequency interference; ultra wideband antennas; future cognitive radio portable device; indoor coverage simulation; interference; pattern reconfigurable planar UWB antenna array; pattern reconfiguration; radiation pattern; reflection coefficient; scanning enhancement; spectrum sensing; total efficiency simulation; ultrawideband antenna array; Antenna arrays; Antenna radiation patterns; Arrays; Cognitive radio; Feeds; Switches; Ultra wideband antennas; Cognitive radio antenna; UWB array; pattern reconfigurable antenna;
Conference_Titel :
Antennas and Propagation Conference (LAPC), 2012 Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4673-2218-8
Electronic_ISBN :
978-1-4673-2219-5
DOI :
10.1109/LAPC.2012.6403024
