A Coarsely Discretized Huygens' Metasurface for Anomalous Transmission
- aDepartment of Electrical Engineering, State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Hong Kong SAR, China
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Abstract
Metasurfaces composed of subwavelength elements usually require complicated design and a large number of elements. Coarse discretization in metasurface design - having as few metasurfaces cells as possible within a wave length or period - leads to reduced number of elements in a period, resulting in lower requirement for phase coverage as well as surface impedance coverage. Additionally, coarsely discretized metasurfaces may provide possibility for larger unit cells. Therefore, coarsely discretized metasurfaces show advantages of easy design and may find applications in high frequency range. In this work, we propose a transmitting Huygens' metasurface with a discretization level of 3 elements in a period. Simulation result shows efficient anomalous transmission achieved.