A Circularly-Polarized Isoflux Antenna Based on Anisotropic Metasurface

Theory, design, realization and measurements of an X-band isoflux circularly polarized antenna for LEO satellite platforms are presented. The antenna is based on a metasurface composed by a dense texture of sub-wavelength metal patches on a grounded dielectric slab, excited by a surface wave generat...

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Veröffentlicht in:	IEEE transactions on antennas and propagation 2012-11, Vol.60 (11), p.4998-5009
Hauptverfasser:	Minatti, Gabriele, Maci, Stefano, De Vita, Paolo, Freni, Angelo, Sabbadini, Marco
Format:	Artikel
Sprache:	eng
Schlagworte:	Antennas Apertures Applied sciences Exact sciences and technology Impedance Leaky wave antennas metasurface antennas Modulation Radiocommunications Satellite antennas Satellite telecommunications. Space telecommunications Satellites Surface impedance Telecommunications Telecommunications and information theory
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Beschreibung
Zusammenfassung:	Theory, design, realization and measurements of an X-band isoflux circularly polarized antenna for LEO satellite platforms are presented. The antenna is based on a metasurface composed by a dense texture of sub-wavelength metal patches on a grounded dielectric slab, excited by a surface wave generated by a coplanar feeder. The antenna is extremely flat (1.57 mm) and light (less than 1 Kg) and represents a competitive solution for space-to-ground data link applications.
ISSN:	0018-926X 1558-2221
DOI:	10.1109/TAP.2012.2208614