Magnetostrictive surface acoustic wave devices having optimized transducers
US6320479A · kind A · utility
6Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1999 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Dec 17, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/135
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In accordance with the invention, magnetostrictive saw devices are provided with improved transducer structures for enhanced performance. In one improved device, the transducers are in the form of gratings with interconnected ends for reduced resistance and inductance. In another embodiment, the transducers are shaped to provide apodization. In yet a third embodiment, transducer performance is enhanced by patterning composite structures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.