Piezoelectric transducer device with resonance region
US10848124B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2017 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Feb 25, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/06
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
According to one configuration, an acoustical device includes a piezoelectric substrate and at least one curved electrode. Material on a surface of the piezoelectric substrate defines boundaries of a resonance region. The curved electrode is disposed on the piezoelectric substrate in the resonance region and is operable to receive a voltage input signal through a first conductive waveguide. When present, the voltage input signal causes generation and conveyance of acoustical waves from the curved electrode into the resonance region. The acoustical device optionally includes a second curved electrode in the resonance region, which converts the acoustical waves present in the resonance region to an output voltage signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.