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Switchability of a single port SAW resonator using the electrical Bragg band gap

Archive ouverte : Article de revue

Alcorta Galván, R. | Croënne, Charles | Dubus, Bertrand | Loiseaux, B. | Eustache, E. | Bertrand, M. | Hladky, Anne-Christine

Edité par HAL CCSD ; American Institute of Physics

International audience. A proof of concept of a new solution for achieving tunable SAW components based on the electrical Bragg band gap concept developed for piezoelectric phononic crystals is presented on a SAW resonator on a LiNbO3 substrate. In this work, it is shown that for a fixed geometry, it is possible to shift the main resonance frequency by modifying the electrical condition on the electrodes that constitute the cavity's mirrors. The concept was validated by both numerical simulations and experimental characterization of single port resonators fabricated on LiNbO3.

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