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 in this letter. The proposed antenna consists of a planar slot coupling antenna with an array of metallic rectangular patches that can be viewed as a polarization-depe...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2016, Vol.15, p.374-377
Main Authors: Wu, Zhao, Li, Long, Li, Yongjiu, Chen, Xi
Format: Article
Language:English
Subjects:
Antenna measurements
Bandwidth
Broadband antennas
Circularly polarized
Impedance
low-profile
metasurface
satellite communication
Slot antennas
superstrate
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Summary:A new wideband circularly polarized antenna using metasurface superstrate for C-band satellite communication application is proposed in this letter. The proposed antenna consists of a planar slot coupling antenna with an array of metallic rectangular patches that can be viewed as a polarization-dependent metasurface superstrate. The metasurface is utilized to adjust axial ratio (AR) for wideband circular polarization. Furthermore, the proposed antenna has a compact structure with a low profile of 0.07λ 0 ( λ 0 stands for the free-space wavelength at 5.25 GHz) and ground size of 34.5×28 mm 2 . 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. The simulated and measured results are in good agreement to verify the good performance of the proposed antenna.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2015.2446505