Metasurface Superstrate Antenna with Wideband Circular Polarization for Satellite Communication Application

Metasurface Superstrate Antenna with Wideband Circular Polarization for Satellite Communication Application

Abstract— Metasurface Superstrate Antenna with Wideband Circular Polarization for Satellite Communication Application. A new wideband circularly polarized antenna using metasurface superstrate for C-band satellite communication application is proposed. The proposed antenna consists of a planar slot coupling antenna with an array of metallic rectangular patches which can be view as a polarization-dependent metasurface superstrate. The metasurface is utilized to adjust axial ratio < Final Year Projects 2016 > AR for wideband circular polarization. Furthermore, the proposed antenna has a compact structure with a low-profile of 0.07λ0 (λ0 stands for the free space wavelength at 5.25 GHz) and ground size of 34.5 × 28 mm2. Measured results show that the -10 dB impedance bandwidth for the proposed antenna is 33.7% from 4.2 to 5.9 GHz, and 3-dB AR bandwidth is 16.5% from 4.9 to 5.9 GHz with an average gain of 5.8 dBi.