operating just like an optical lens, the rotman lens provides six fields of view simultaneously in a pattern shaped like a spider. tuning the shape of the lens results in a structure with one angle of curvature on the beam-port side and another on the antenna side. this enables the structure to map a set of selected radiation directions to an associated set of beam-ports. the lens is then used as an intermediate component between the receiving antennas and the rectifiers for 5G energy harvesting.
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