Abstract: A surface acoustic wave device includes at least one transducer; two acoustic reflectors disposed on either side of the at least one transducer so as to form a cavity, each acoustic reflector comprising an array of electrodes in the form of lines parallel with each other, each array comprising a subset of electrodes connected to a reference potential denoted mass defining a first connection type, and a subset of electrodes that are not connected to any potential, i.e. that have a floating connection defining a second connection type; at least one switching circuit configured to modify the distribution of the connections of at least one part of the electrodes of each array between the different connection types.
Type:
Grant
Filed:
December 27, 2019
Date of Patent:
February 6, 2024
Assignees:
THALES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, SOITEC SA, YNCREA HAUTS DE FRANCE ISEN LILLE, UNIVERSITE DE LILLE, ECOLE CENTRALE DE LILLE, UNIVERSITE POLYTECHNIQUE HAUTS-DE-FRANCE