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A New Reconfigurable Antenna Design for Cognitive Radio

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2 Author(s)
Tawk, Y. ; Electr. & Comput. Eng. Dept., Univ. of New Mexico, Albuquerque, NM, USA ; Christodoulou, C.G.

This letter presents a new antenna design suitable for cognitive radio communication. It consists of two structures incorporated together into the same substrate. The first structure is an ultrawideband (UWB) antenna covering the spectrum from 3.1-11 GHz for channel sensing. The second structure is a frequency reconfigurable triangular-shaped patch for establishing communication with another RF device. The antenna reconfigurability is achieved via a rotational motion. A prototype antenna was fabricated and tested in order to validate the suggested method.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:8 )