Vol. 72

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2017-03-31

A Novel Reconfigurable Antenna with Separate Sensing Mechanism for CR System

By Sonia Sharma and Chandra Charu Tripathi
Progress In Electromagnetics Research C, Vol. 72, 187-196, 2017
doi:10.2528/PIERC17010901

Abstract

A novel hybrid antenna capable of both spectrum sensing and then accordingly reconfiguring its operating characteristics is proposed here. The proposed antenna is versatile in nature as it can reconfigure its resonant frequency, polarization state, bandwidth and radiation pattern. The physical structure of antenna is also versatile in nature as different printed parts are used several times in different operating modes using PIN diodes. The proposed versatile antenna senses spectrum over a wide frequency range from 3 GHz-12 GHz by using a separate UWB antenna. After sensing, the antenna can reconfigure its frequency in five different bands using three matching stubs. The proposed antenna can reconfigure its polarization state over two frequency bands by controlling the switchable slot. The antenna can also reconfigure its pattern by shorting the parasitic arc using PIN diodes. The prototype is fabricated, and the functioning is verified through measurement.

Citation


Sonia Sharma and Chandra Charu Tripathi, "A Novel Reconfigurable Antenna with Separate Sensing Mechanism for CR System," Progress In Electromagnetics Research C, Vol. 72, 187-196, 2017.
doi:10.2528/PIERC17010901
http://jpier.org/PIERC/pier.php?paper=17010901

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