Title :
A research vision on cognitive radio filterantennas
Author :
Ramadan, A.H. ; Costantine, Joseph ; Tawk, Youssef ; Al-Husseini, Mohammed ; Christodoulou, Christos G. ; Kabalan, Karim Y.
Author_Institution :
ECE Dept., American Univ. of Beirut, Beirut, Lebanon
Abstract :
This paper presents frequency-tunable microstrip antennas for cognitive radio applications. The approach is based on electronically adjusting the antenna´s operating frequency by integrating tunable open loop resonator (OLR) based bandpass filters into wideband antenna structures. The same technique is utilized to design cognitive radio pattern and polarization diverse tunable filter-antennas. A good agreement between the simulated and measured results for the different fabricated prototypes is obtained.
Keywords :
antenna radiation patterns; band-pass filters; broadband antennas; cognitive radio; diversity reception; microstrip antennas; microstrip resonators; OLR based bandpass filters; cognitive radio filter-antennas; cognitive radio pattern; frequency-tunable microstrip antennas; polarization diverse tunable filter-antennas; research vision; tunable open loop resonator; wideband antenna structures; Antenna radiation patterns; Band-pass filters; Cognitive radio; Microstrip antennas; Microwave filters; cognitive radio; filter-antenna; pattern diversity; polarization diversity; spectrum sensing;
Conference_Titel :
Antennas and Propagation (EuCAP), 2014 8th European Conference on
Conference_Location :
The Hague
DOI :
10.1109/EuCAP.2014.6902622
