Acoustic surface wave device using single crystal of Tl.sub.3 VS.sub.4 or Tl.sub.3 NbS.sub.4
US3991330A · kind A · utility
4Cited by
0References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1974 |
| Grant date | Nov 9, 1976 |
| Priority date | — |
| Expiry date | Apr 23, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/02543
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An acoustic surface wave device is disclosed which comprises a crystal of Tl.sub.3 VS.sub.4, Tl.sub.3 NbS.sub.4, or mixtures thereof having at least one surface at least 1/2 cm long, a surface wave generating transducer mounted on the surface, and a surface wave receiving transducer mounted on the surface positioned to receive a surface wave generated by the surface wave generating transducer. The device transmits surface waves at a low velocity and high coupling efficiency and can be used in a delay line, a filter, an FM discriminator, an oscillator, or other device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.