Magnetostatic wave (MSW) filter with sharp upper cut-off frequency and channelizer formed therefrom
US5017895A · kind A · utility
5Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1989 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Sep 11, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2/001
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In the present invention the upper edge of the frequency response of the magnetostatic wave (MSW) filter is sharpened. A band limiting element (BLE) is coupled to the MSW filter, preferably in the filter element output. In one embodiment the BLE absorbs signals above a certain frequency in the upper band edge of the MSW. In another embodiment, the BLE reinforces the output response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.