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Polarization Reconfigurable Dual-Band Rectangular Slot Antenna

  • Rohit Kumar Saini EMAIL logo
Published/Copyright: July 5, 2019
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Abstract

A novel dual-band rectangular slot antenna is presented for dual-sense reconfigurable polarization. A W-shaped microstrip feedline and two rectangular parasitic patches are used to obtain dual-band circular polarization. Further, the feedline is modified so that the senses of polarization at the two bands are opposite. By introducing PIN-diodes in the feed lines, polarization can be switched among left-hand circular polarization (LHCP), right-hand circular polarization (RHCP), and linear polarization (LP). A prototype dual-band dual-sense antenna with f01 = 1.9 GHz and f02 = 3.45 GHz is fabricated in a 1.6 mm thick FR4 substrate. The measured circular polarized bandwidths are more than 7.6 % for the lower band and 5 % for the upper band.

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Received: 2019-02-12
Published Online: 2019-07-05
Published in Print: 2019-09-25

© 2019 Walter de Gruyter GmbH, Berlin/Boston

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