Planar wideband circularly polarized metasurface-based antenna array

Son Xuat Ta and Ikmo Park

Journal of Electromagnetic Waves and Applications, 2016, vol. 30, issue 12, 1620-1630

Abstract: This paper presents a planar circularly polarized (CP) antenna array with a high-gain and wideband operation. The array is based on a sequentially rotated feeding network for a set of 2 × 2 CP metasurface-based antennas. The single element is a microstrip-line-fed slot antenna, which is coupled to a metasurface having 4 × 4 truncated corner square patches, to produce the CP radiation. The wideband characteristic of the design is obtained by a proper combination between the feeding network and the CP metasurface-based antennas. The proposed array, with an overall size of 50 × 50 × 2.032 mm3 (~1.60 × 1.60 × 0.065 λ0 at 9.6 GHz), has been fabricated and tested. The measurements resulted in an |S11| 84%.

Date: 2016
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DOI: 10.1080/09205071.2016.1210038

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