A 2-D Beam-Scanning Circularly Polarized Folded Transmitarray Antenna With Linearly Polarized Feed for High Aperture Efficiency
This letter presents a two-dimensional (2-D) beam-scanning circularly polarized (CP) folded transmitarray antenna (FTA) based on the Risley prism principle. By constructing transmitarray elements capable of linear-to-circular and circular-to-circular polarization conversion, and introducing a polarization-converting re...