Method and apparatus for surface acoustic wave reflector grating
US5212420A · kind A · utility
7Cited by
11References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1991 |
| Grant date | May 18, 1993 |
| Priority date | — |
| Expiry date | Sep 3, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/02653
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An acoustic wave device comprises an acoustic wave transducer coupled to an acoustic wave propagating substrate. The acoustic wave transducer converts signal energy between electrical and acoustical forms. Acoustic reflectors are placed one on either side of the acoustic wave transducer. The acoustic reflectors are composed of acoustic reflection elements spaced approximately one wavelength apart, and provide enhanced acoustic acoustic reflections together with relaxed fabrication constraints.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.