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Wideband to concurrent tri-band frequency reconfigurable microstrip patch antenna for wireless communication

Published online by Cambridge University Press:  01 August 2016

Sonia Sharma  and
Chandra Charu Tripathi
Sonia Sharma*
Affiliation:
Department of Electronics and Communication Engineering, University Institute of Engineering and Technology, Kurukshetra University, Kurukshetra-136119, India
Chandra Charu Tripathi
Affiliation:
Department of Electronics and Communication Engineering, University Institute of Engineering and Technology, Kurukshetra University, Kurukshetra-136119, India
*
Corresponding author: S. Sharma Email: [email protected]
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Abstract

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This paper proposes a novel wideband to concurrent tri-band frequency reconfigurable microstrip antenna. The frequency reconfiguration is achieved by using a pair of PIN diodes in the antenna feed line to switch the antenna either in wideband mode or in concurrent tri-band mode. In order to improve the bandwidth and gain of the antenna for wideband operation, the properties of J-K inverter and split ring resonators are exploited. To demonstrate the versatility of this concept a prototype is fabricated and tested here. The tested results in wideband mode shows that the proposed antenna operates from 3.58 to –3.82 GHz, which is 4.08 times larger than the bandwidth of a simple microstrip patch antenna. In the concurrent tri-band mode frequency tuning is done by microstrip open stub at 1.5 GHz, 1.9 GHz, and 3.5 GHz. Gain of the proposed antenna is better than 2.7 dB in wideband mode and 2.7 dB in concurrent tri-band mode.

Keywords

WidebandFrequency reconfigurable antennaJK inverterCSRR
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Issue 4 , May 2017 , pp. 915 - 922
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2016 

References

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