Method of making a single phase unidirectional surface acoustic wave transducer
US4910839A · kind A · utility
27Cited by
1References
14Claims
0Family size
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Inventor
Key dates
| Filing date | Dec 3, 1984 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Dec 3, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/42
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A single-phase unidirectional surface acoustic wave transducer comprising a piezoelectric substrate and a transducer having localized symmetry and constructed for establishing a predetermined separation between the centers of acoustic wave reflection and transduction on said substrate by selectively orienting the transducer on a specific cut of said substrate to achieve a separation between said centers in a continuum of achievable phase angles of 0.degree.-360 .degree..
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.