研究目的
To derive dispersion characteristics of acoustic transformational metasurfaces for deflecting parallel wavefronts in a desired direction and to propose a dual-Lorentz resonator for implementing a particular phase with unity reflection coefficient.
研究成果
The study successfully demonstrates the design of a transformational Huygens metasurface capable of deflecting incident plane-wave acoustic vectors in any desired direction. The proposed dual-Lorentz resonator allows for the implementation of a specific phase with unity reflection coefficient, enabling high-resolution imaging essential for cloaking and deceptive acoustics. Full-wave simulations confirm the effectiveness of the metascreen in beam steering and carpet cloaking applications.
研究不足
The study is based on simulations, and practical implementation may face challenges related to material properties and manufacturing precision. The bandwidth of the metascreen is inversely proportional to the sharpness of the phase profile, which may limit its application in certain scenarios.
