Dual Circularly Polarized Reflectarray With Independent Control of Polarizations

A reflectarray with independent dual-circular polarizations is proposed for the first time. The reflector panel operates in X-band and contains 97 unit-cells. It is made with a lego-type configuration allowing change manually the phase aperture distribution and demonstrating experimentally the indep...

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Veröffentlicht in:	IEEE transactions on antennas and propagation 2015-04, Vol.63 (4), p.1877-1881
Hauptverfasser:	Mener, Simon, Gillard, Raphael, Sauleau, Ronan, Bellion, Anthony, Potier, Patrick
Format:	Artikel
Sprache:	eng
Schlagworte:	Antenna arrays Antenna measurements Antenna radiation patterns Cavity resonators Dual-polarized passive reflectarray Dualcircular polarizations Gain Reflector antennas
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Beschreibung
Zusammenfassung:	A reflectarray with independent dual-circular polarizations is proposed for the first time. The reflector panel operates in X-band and contains 97 unit-cells. It is made with a lego-type configuration allowing change manually the phase aperture distribution and demonstrating experimentally the independence of both polarizations in the same frequency band. To this end, various beam pointing directions are selected in right-hand and left-hand polarizations. The achieved bandwidth is 790 MHz (9.4% at the center frequency 8.37 GHz) for an axial ratio lower than 3.5 dB with 1.5 dB gain variations.
ISSN:	0018-926X 1558-2221
DOI:	10.1109/TAP.2015.2398458