Single-phase uni-directional acoustic wave transducer
US5162689A · kind A · utility
14Cited by
5References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 1991 |
| Grant date | Nov 10, 1992 |
| Priority date | — |
| Expiry date | May 1, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/14505
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An acoustic transducer for an acoustic wave device which includes an acoustic wave propagating substrate, the transducer adapted to couple to an electrical load and/or source. The transducer includes at least a pair of comb electrodes formed on the substrate. It includes apparatus for applying an electrical load and/or source across the pair of comb electrodes. The first of the combs has a plurality of electrode fingers. The second comb has at least one electrode finger. The widths of the electrode fingers are the same. Gaps of at least two different widths are disposed between the electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.