Electromagnetic Wave Modulation for Holographic Metasurface

In this paper, an innovative method for designing planar and conformal holographic metasurface (HM) to modulate electromagnetic waves in desired directions is proposed. The designed holographic metasurfaces can precisely control the scattering waves, effectively enhancing the directionality of the beam. The holographic metasurfaces achieve scattering wave deflections in the range of ±60° at 10 GHz under incident plane waves with x- and y- polarization at arbitrary angles. Prototypes of the designed conformal holographic metasurfaces with different states are fabricated and measured, and the simulation and measurement results are in good agreement. The designed holographic metasurfaces have polarization insensitivity and adaptability to cylindrical platforms, which has big potential to be deployed for the smart radio environment to support wireless power transfer and wireless communications.