Surface acoustic wave gratings having selected reflectivity
US5406159A · kind A · utility
14Cited by
12References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 11, 1993 |
| Grant date | Apr 11, 1995 |
| Priority date | — |
| Expiry date | Nov 11, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/02637
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An improved surface acoustic wave grating structure that utilizes four electrodes per 3.lambda./2 or 5.lambda./2 transduction length of a reflector grating structure that produces a desired net internal distributed reflectivity in both magnitude and phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.