A new model of metasurface used for linear-to-circular polarization conversion in antenna array

摘要

In this article, the authors propose a new model of metasurface able to convert linearly polarized signals in circularly polarized signals for a planar antenna array designed to operate at the ISM frequency band (2.45 GHz). All simulated results were obtained using the Ansoft HFSS software. The prototypes were produced and their transmission characteristics were measured. A good agreement between simulated and measured results was obtained. The proposed structure presents a linear-to-circular polarization conversion feature, with good bandwidth and axial ratio. Besides, the structure is simple and maintains the advantages of low profile and low cost. (c) 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:861-864, 2016