Piezoelectric metamaterial

Inductance element is connected to the top and bottom surfaces of the piezoelectric transducer as the shunt circuit. Note that a piezoelectric transducer acts electrically as a capacitor. The combination of the piezoelectric capacitance and the inductive shunt creates an LC resonant unit. Moreover, since the piezoelectric transducer possesses two-way electro-mechanical coupling, the local resonance in electrical domain can affect the system dynamics in mechanical domain. As such, the LC resonance of shunt circuit creates bandgap for the integrated system.

Experiment setup

Measured results

Publication:

Jiawen Xu*, Xin Zhang, Ruqiang Yan, “Experimental Analysis of Piezoelectric Metamaterial with Inductance Shunt Circuits by Using Correlation for Signal Detection,” Journal of Applied Physics, 128, 174903, 2020.