DocumentCode
2138123
Title
A tunable filter antenna for cognitive radio systems
Author
Al-Husseini, Mohammed ; Ramadan, Ali ; El-Hajj, Ali ; Kabalan, Karim Y.
Author_Institution
Dept. of Electr. & Comput. Eng., American Univ. of Beirut, Beirut, Lebanon
fYear
2012
fDate
8-14 July 2012
Firstpage
1
Lastpage
2
Abstract
A simple frequency-tunable antenna for cognitive radio is proposed. It features a narrow bandpass filter, rendered tunable with a single varactor, and embedded in the feed line of an ultrawideband antenna. A modified version capable of both ultrawideband and tunable narrowband operations is also presented. Due to the topology of the antenna, the required DC biasing lines are easy to design and leave little effect on the antenna performance. Simulated and measured results show the good functioning of the presented design, for both channel sensing and communication.
Keywords
antenna feeds; band-pass filters; cognitive radio; ultra wideband antennas; varactors; channel sensing; cognitive radio systems; feed line; frequency-tunable antenna; narrow bandpass filter; single varactor; tunable filter antenna; tunable narrowband operations; ultrawideband antenna; Antenna measurements; Antennas; Prototypes;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location
Chicago, IL
ISSN
1522-3965
Print_ISBN
978-1-4673-0461-0
Type
conf
DOI
10.1109/APS.2012.6348455
Filename
6348455
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