Controlling Conical Beam Carrying Orbital Angular Momentum with Transmissive Metasurface

Figure 5

(a) Photograph of the fabricated metasurface (left panel) and feed source (right panel). (b) Experimental setup for electric field mapping. (c) Measured distribution of the transmission phase. (d) Measured distribution of the transmission amplitude. (e) Measured far-field 2D radiation pattern at 11.5 GHz (left panels), 13 GHz (middle panels), and 13.5 GHz (right panels).

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