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PIER PIER B PIER C PIER M PIER Letters
2013-12-16
Tunable Filter-Antennas for Cognitive Radio Applications
By
Ali H. Ramadan,

    Dr. Ali H. Ramadan

    American University of Beirut

    Lebanon

    Homepage

Joseph Costantine,

    Dr. Joseph Costantine

    American University of Beirut (AUB)

    Lebanon

    Homepage

Mohammed Al-Husseini,

    Dr. Mohammed Al-Husseini

    American University of Beirut

    Lebanon

    Homepage

Karim Youssef Kabalan,

    Professor Karim Youssef Kabalan

    American University of Beirut

    Lebanon

    Homepage

Youssef Tawk,

    Dr. Youssef Tawk

    Notre Dame University-Louaize (NDU)

    Lebanon

    Homepage

Christos Christodoulou

    Dr. Christos Christodoulou

    University of New Mexico

    USA

    Homepage

Progress In Electromagnetics Research B, Vol. 57, 253-265, 2014
doi:10.2528/PIERB13112005
Abstract
In this paper, frequency-tunable microstrip antennas, for cognitive radio applications, are proposed. The approach is based on electrically tuning the antenna's operating frequency by integrating reconfigurable band pass filters into wideband antenna structures. The design of an open loop resonator (OLR)-based bandstop filter, and its transformation to a bandpass filter, are investigated first. Then, the incorporation of the bandpass filter, with a wideband antenna, is detailed. The same methodology is employed to design cognitive radio pattern and polarization diversity tunable filter-antennas. A good agreement between the simulated and measured results for the different fabricated prototypes is attained.
Citation
Ali H. Ramadan Joseph Costantine Mohammed Al-Husseini Karim Youssef Kabalan Youssef Tawk Christos Christodoulou , "Tunable Filter-Antennas for Cognitive Radio Applications," Progress In Electromagnetics Research B, Vol. 57, 253-265, 2014.
doi:10.2528/PIERB13112005
http://www.jpier.org/PIERB/pier.php?paper=13112005
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