Surface acoustic wave device
US11894830B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 27, 2019 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Jan 16, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/6403
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.