Open AccessWave propagation control in active acoustic metamaterials
Author(s) -
Andrea Bacigalupo,
Maria Laura De Bellis,
Giorgio Gnecco,
D. Misseroni
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2015/1/012031
Subject(s) - metamaterial , realization (probability) , acoustics , admittance , electrical impedance , focus (optics) , acoustic metamaterials , piezoelectricity , computer science , physics , electronic engineering , materials science , optoelectronics , engineering , electrical engineering , optics , mathematics , statistics
Focus is on the design of an innovative class of tunable periodic metamaterials, conceived for the realization of high performance acoustic metafilters with settable real-time capabilities. In this framework the tunability is due to the presence of a piezoelectric phase shunted by a suitable electrical circuit with adjustable impedance/admittance. It follows that the acoustic properties of the metamaterial can be properly modified in an adaptive way, opening up new possibilities for the control of pass- and stop-bands.