Title :
A tunable filtenna for cognitive radio applications
Author :
Ramadan, A.H. ; Kabalan, K.Y. ; Costantine, J. ; Tawk, Y. ; Christodoulou, C.G.
Author_Institution :
ECE Dept., American Univ. of Beirut, Beirut, Lebanon
Abstract :
In this paper, a varactor-tuned filter-antenna (filtenna), for cognitive radio applications is proposed. The presented technique is based on electronically tuning the resonant frequency of a compact tunable band-pass filter, which is integrated into a wideband antenna. The change in the loading capacitance of the installed varactor results in frequency tuning of the whole filtenna system, while preserving its radiation characteristics.
Keywords :
antenna radiation patterns; band-pass filters; broadband antennas; capacitance; cognitive radio; varactors; cognitive radio applications; compact tunable band-pass filter; resonant frequency electronic tuning; tunable filtenna frequency tuning; varactor loading capacitance; varactor tuned filter antenna radiation characteristics; wideband antenna; Band-pass filters; Broadband antennas; Cognitive radio; Resonant frequency; Tuning; Varactors; Wideband; filtenna; overlay cognitive radio; spectrum sensing;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon
