L-shaped slot coupling-fed low-profile broadband circularly polarized patch antenna with metasurface

Wen-quan Cao, Bangning Zhang, Wei Hong and Jun Jin

Journal of Electromagnetic Waves and Applications, 2017, vol. 31, issue 1, 111-120

Abstract: Metasurface-based circularly polarized (CP) patch antenna with broadband property is proposed and analyzed in this paper. L-shaped slot coupling method is adopted to feed a 4 × 4 equally divided patch antenna (EDPA). By optimizing the geometry of the feeding structure, broad CP bandwidth is achieved which is much wider than the patch-truncated type. One prototype is fabricated for verification and the results show that the proposed antenna has a wide impedance bandwidth, which is 55.4% ranging from 4.66 to 8.23 GHz (S11

Date: 2017
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DOI: 10.1080/09205071.2016.1278185

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