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arXiv · 1905.11161

Piezoelectric Phononic Plates: Retrieving the Frequency Band Structure via All-electric Experiments

F. H. Chikh-Bled·N. Kherraz·R. Sainidou·P. Rembert·B. Morvan
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Abstract

We propose an experimental technique based on all-electric measurements to retrieve the frequency response of a one-dimensional piezoelectric phononic crystal plate, structured periodically with millimeter-scaled metallic strips on its two surfaces. The metallic electrodes, used for the excitation of Lamb-like guided modes in the plate, ensure at the same time control of their dispersion by means of externally loaded electric circuits that offer non-destructive tunability in the frequency response of these structures. Our results, in very good agreement with finite-element numerical predictions, reveal interesting symmetry aspects that are employed to analyze the frequency band structure of such crystals. More importantly, Lamb-like guided modes interact with electric-resonant bands induced by inductance loads on the plate, whose form and symmetry are discussed and analyzed in depth, showing unprecedented dispersion characteristics.

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F. H. Chikh-Bled, N. Kherraz, R. Sainidou, P. Rembert, B. Morvan. 2019-05-27. Piezoelectric Phononic Plates: Retrieving the Frequency Band Structure via All-electric Experiments. https://doi.org/10.1088/1361-665x%2Fab4aac

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