论文标题
电弹性元表，带谐振压电分流器可调波前控制
Electroelastic metasurface with resonant piezoelectric shunts for tunable wavefront control
论文作者
论文摘要
这项研究提出了一个可调的相位调节的跨表面，由带有谐振型分流电路的定期分布的压电贴片组成。建立了完全耦合的机电模型，以研究元表单元的传输特性，并通过数值和实验研究验证。基于对元表单元的分析，我们首先使用单共振的分流器探索电弹性元表面的性能，然后通过多共振的分流器扩展其功能。通过仅调谐分流电路中的电荷载，我们利用所提出的跨表面来完成以不同角度和焦点的A0模式羔羊波的波偏转和波的聚焦。
This study presents a tunable phase-modulated metasurface composed of periodically distributed piezoelectric patches with resonant-type shunt circuits. The fully coupled electromechanical model is established to study the transmission characteristics of the metasurface unit and validated through numerical and experimental studies. Based on the analysis of the metasurface unit, we first explore the performance of electroelastic metasurface with single-resonant shunts and then extend its capability with multi-resonant shunts. By only tuning the electric loads in the shunt circuits, we utilize the proposed metasurface to accomplish wave deflection and wave focusing of A0 mode Lamb waves at different angles and focal points, respectively.
