A Broadband Large-angle Anomalous Reflection Phase Gradient Metasurface

In this work, a broadband phase gradient metasurface (PGM) that can achieve relatively large-angle anomalous reflection is proposed. The PGM unit consists of a cross dipole and three square rings. Simulated results show that the PGM with the size of 160×160 mm<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> can achieve anomalous reflection at 11-15 GHz when the incident angle is less than 35°.