Low loss wide bandwidth parallel channel acoustic filter
US5296824A · kind A · utility
13Cited by
10References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1991 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Dec 2, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/1452
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An acoustic wave filtering apparatus includes an acoustic wave propagating substrate for supporting propagation of acoustic waves and a plurality of acoustic wave filters for filtering an electrical signal. Each of said plurality further comprises an input for supplying electrical input signals, an input unidirectional acoustic wave transducer for converting electrical signal energy into acoustic energy, an output unidirectional acoustic wave transducer for converting acoustic signals to electrical signals, and an output for combining and delivering electrical output signals to external electrical apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.