Multi-band wavefront attenuation leveraging temporal modulation of metasurface via reconfigurable and scalable design

Abstract

Practical realization of multi-band resonant piezoelectric metasurfaces remains challenging, conventionally requiring graded subunits, multi-branch circuitry, digital switching, or active control. As system dimensionality increases, these solutions may become prohibitively complex and expensive, limiting large-scale feasibility. To address this, we investigate a temporally modulated LC-resonator synthesized from self-contained analog circuit. By embedding time-varying resistors into synthetic impedances, continuous harmonic inductances with dynamic reconfigurability are realized. Integrated into local resonators, the proposed circuits open temporal modulation induced sidebands with corresponding wave attenuation zones. Validated through modeling and experimentation, the resulting metasurface is highly scalable and reconfigurable, offering a solution for multi-band vibration control.