Unidirectional transducer etched with surface acoustic waves
US6414414B1 · kind B1 · utility
22Cited by
1References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 2000 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Jan 28, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/14505
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A surface acoustic wave transducer in which an etching network is superimposed on the conventional networks of electrodes of acoustic transducers. The superposition of these networks makes it possible to obtain a favored direction of propagation of the acoustic waves while maintaining a high quality factor Q comparable with that of conventional bidirectional transducers. Such a surface acoustic wave transducer may find application in mobile radio communication systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.