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A Reconfigurable Micro-strip Patch Antenna for Various Wireless and Cognitive Radio Applications
Ganesh Babu T.V.J. and Rajesh Kumar V.R.S

Published in: Journal for Advance Research in Applied Sciences
Volume- 4, Issue-7, pp.132-137, Dec 2017
DPI :-> 16.10089.JARAS.2017.V4I7.132137.2230



Abstract
Cognitive radio is an apparent technology for coherent use of the radio spectrum where, the spectrum can be used by the unlicensed users without interference with the licensed users. Reconfigurable antennas provide a potential solution to solve the antenna problems related to the cognitive radio system using the ability to switch frequency, radiation patterns and polarization. In this paper a reconfigurable micro strip patch antenna for possible applications in cognitive radio systems is presented. This work provides a methodology to design reconfigurable antennas with PIN diode switch. The reconfigurability is achieved in the frequency ranges from 4.3 GHz to 8.3 GHz respectively. To switch between the frequencies in the cognitive radio, the frequency re-configurability is done. The PIN diode switch is used to change the dimensions of the patch and to make the antenna to resonate at various frequencies. The proposed antenna is simulated using An soft HFSS software. The results show with only two switches 9 different transmitting frequencies are available which are useful to implement cognitive radio applications.

Key-Words / Index Term
Cognitive radio, an soft HFSS, PIN diode, Reconfigurable antenna, micro-strip patch antenna, reflection coefficient.

How to cite this article
Ganesh Babu T.V.J. and Rajesh Kumar V.R.S , “A Reconfigurable Micro-strip Patch Antenna for Various Wireless and Cognitive Radio Applications”, Journal for Advance Research in Applied Sciences, 4, Issue-7, pp.132-137, Dec 2017. DPI:16.10089.JARAS.V4.I7.2230