Variable bandwidth filter
US6054908A · kind A · utility
31Cited by
22References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1997 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Dec 12, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H7/12
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A variable bandwidth filter that includes either a parallel or series combination of a fixed impedance, such as a capacitor, and a variable impedance, such as a variable capacitor. The series and parallel combinations enable the ideal capacitance values for the filter coupling to be approximated thereby enabling a single control voltage to control the filter bandwidth without effecting the filter's upper frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.