Controlling Wavefront using a Coarsely Discretized Dielectric Huygens' Metasurface

This paper reports a coarsely discretized dielectric Huygens' metasurface that comprises of only three elements per grating period. The resulting metasurface, which we termed as tripartite dielectric Huygens' metasurface (TD-HMS), greatly simplifies the design leading to a cost-effective and robust metasurface for efficient electromagnetic wave manipulation. Through full-wave electromagnetic simulations at 60 GHz, we show that the proposed TDHMS can achieve efficient anomalous transmission, where the desired diffracted mode contains more than 80% of the total transmitted power.