Information Metasurface for Simultaneous Wave Manipulations and Signal Modulations

Recently, digital and programmable metasurface has evolved into a new branch as information metasurface owing to its real-time manipulation of electromagnetic (EM) waves and simultaneous modulation of digital signals. Here, we present the theoretical model of information metasurface and analyze its capability of wave manipulation and signal modulation. Further, we extend the single-metasurface model into a multi-metasurface one, and discuss the feasibility and application of their joint operation. Our simulation results show its performance in high-precision harmonic scattering patterns, higher-order signal modulation, and spatial localization, demonstrating the potential of information metasurface in wireless communications and radar signal processing.