Surface-wave distributed acoustic reflection transducer and filter including such a transducer
US5703427A · kind A · utility
16Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1996 |
| Grant date | Dec 30, 1997 |
| Priority date | — |
| Expiry date | Oct 15, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/14538
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The distributed acoustic reflection transducer has a reflection function which includes at least one reversal of sign, that is to say it possesses at least one reflector and, in general, a combination of reflectors, the center of which is at a distance of k.lambda./2+.lambda./4 from the center of the other reflectors, .lambda. being the wavelength corresponding to the central operating frequency of the transducer. The applications will be for the production of surface-wave filters in radio communication systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.