期刊
SMART MATERIALS AND STRUCTURES
卷 24, 期 8, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0964-1726/24/8/085013
关键词
phononic crystals; tunability; piezoelectricity
资金
- Agence Nationale de la Recherche
- MIRAGES project [ANR-12-BS09-0015]
- region Nord Pas-de-Calais, France
- Agence Nationale de la Recherche (ANR) [ANR-12-BS09-0015] Funding Source: Agence Nationale de la Recherche (ANR)
A one-dimensional stack of identical piezoelectric rods is investigated. The device exhibits a band gap related to electrical boundary condition. A separate control of the central frequency and of the width of the band gap is performed by an electrical boundary condition involving two different variable capacitances. Because the capacitances are grounded, a specific model has been developed and validated. Finally, experiments unambiguously confirmed previous theoretical observations.
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