Resonator structure
US4731595A · kind A · utility
15Cited by
8References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1986 |
| Grant date | Mar 15, 1988 |
| Priority date | — |
| Expiry date | Jan 24, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/02685
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A surface acoustic wave resonator device having a resonant cavity formed on a substrate between a transducer and its related grating that causes a symmetric frequency response with one major resonant frequency response and low spurious frequency responses, with no etched grooves or recessed electrodes, with a minimum electrode geometry of .lambda./4, with single level fabrication and uniform wave velocity throughout the structure and being frequency insensitive to electrode reflections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.