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Direct-modulation Wireless Communication with Real-time Programmable Metasurface

Programmable metasurfaces make it possible to control electromagnetic (EM) wavefront in real time and allow to construct a new architecture for modern communication system. Here, we propose a wireless communication system based on binary amplitude-shift keying (BASK) by utilizing an L-band metasurface with two discrete states of reflection amplitude in far-field region. Experimental results demonstrate good performance of the proposed system, which may have potential in satellite communications.