Patent ID: 11894830
Assignee: ECOLE CENTRALE DE LILLE
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A frequency-agile surface acoustic wave device comprising:
at least one transducer (T1, T2),
two acoustic reflectors (M1, M2) disposed on either side of the at least one transducer so as to form a cavity, each acoustic reflector comprising an array of electrodes (R1, R2) in the form of rows that are parallel to one another, each array comprising a subset of electrodes connected to a reference potential denoted ground (M) defining a first type of connection (CC), and a subset of electrodes which are not connected to any potential, that is to say which have a floating connection defining a second type of connection (CO),
at least one switching circuit (CCOM) configured to modify the distribution of the connections of at least a part of the electrodes of each array between the different types of connection.