Acoustic wave impedance element ladder filter having a reflector integral with a busbar
US5945893A · kind A · utility
106Cited by
10References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 14, 1997 |
| Grant date | Aug 31, 1999 |
| Priority date | — |
| Expiry date | Mar 14, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/1455
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A surface acoustic wave filter provided on a substrate, comprising a transducer and a first reflector for surface acoustic waves at one end of the transducer, the first reflector being integral with conductive material that defines a busbar of the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.