Dispersive interdigital transducer for arrangements operating with acoustic waves
US4701657A · kind A · utility
8Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 8, 1986 |
| Grant date | Oct 20, 1987 |
| Priority date | — |
| Expiry date | Aug 8, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/14517
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A dispersive transducer 100 which has non-equidistant distribution of the finger electrodes 6, 7, 16 and 17 according to band-width such that the finger electrodes 16 and 17 of the low frequency portion 11 of the transducer have a width c and spacing d1 (or d2) which are equal to the corresponding portions of the highest frequency part 13 of the transducer such that reflections are substantially reduced or eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.