%0 Journal Article
%T A Hybrid Reconfigurable Antenna Design for Cognitive Radio System¡ªCombination of Sensing and Reconfigurable Antennas
%A Yahya S. H. Khraisat
%A Nedal Al-Tawalbeh
%A Imad A. Abdel-Hafez
%A Ebrahim Shibly
%J Journal of Electromagnetic Analysis and Applications
%P 328-332
%@ 1942-0749
%D 2013
%I Scientific Research Publishing
%R 10.4236/jemaa.2013.58051
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	<span lang=\"EN-US\" style=\"font-family:Verdana;\">This paper presents a modification of
an existing cognitive antenna design which contains two antennas: one is a sensing
that covers the band from 1</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">-</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">11 GHz and the
other is a hybrid triangular reconfigurable antenna. Two antennas are combined
together to create a new design which called Cognitive Antenna. The new shape
of the reconfigurable antenna will affect the cognitive antenna so as to work
at two different frequencies via rotation by 180¡ã</span><span lang=\"EN-US\" style=\"font-family:Verdana;\">. At each rotation, the antenna takes single
frequency from number of possible frequencies that sensing antenna would find.</span><span style=\"line-height:1.5;font-family:Verdana;\"></span> 
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%K Reconfigurable Antenna
%K Sensing Antenna
%K Hybrid Combination
%K Cognitive Radio System
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=35489