Abstract
The synergistic integration of acoustic metasurfaces with the adaptive reconfigurability of origami art has demonstrated significant promise in thedynamic modulation of sound waves. This paper proposes an innovative approach to acoustic metasurfaces that incorporates bistable origami-inspired folding structure and digital coding to enable dynamic reconfiguration of beam scanning. The unit cell of the metasurface is optimized to realize two equilibrium states with 180-degree phase difference that can be coded as binary 0 and 1. In particular, by programming each element of the metasurface with different coding sequences, two symmetric reflected acoustic beams can be manipulated at different angles. The proposed design signifies a noteworthy advancement in the field of acoustic metasurfaces, offering a flexible and versatile solution applicable to acoustic imaging, communication, and sensing applications.
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