Capacitively-tapped, variable, wideband bandpass filter
US5541558A · kind A · utility
26Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 1994 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Nov 1, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H7/1775
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A wideband bandpass filter has a tank circuit connected between an input and output tapping circuit. The tank circuit contains a variable capacitor and an inductor in parallel. The tank circuit determines a center frequency for the bandpass filter. The input tapping circuit has an input variable impedance, and the output tapping circuit has an output variable impedance. The input and output variable impedances determine the continuously variable bandwidth of the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.