Multi-range voltage controlled resonant circuit
US5493715A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1994 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Aug 1, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2201/038
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A voltage controlled tunable resonant circuit (100) has at least two resonant frequency ranges and reduced self modulation, and includes a resonant element (120), a variable reactance element (130), and a first voltage variable capacitor (VVC) (150). The variable reactance element (130) is coupled to the resonant element (120). The VVC (150) has two fixed capacitance values corresponding to two fixed capacitance bias voltage ranges, and is coupled to the resonant element (120) and the variable reactance element (130). The first VVC (150) is controlled by a first DC bias voltage (190) selected to be within one of the two fixed capacitance bias voltage ranges to establish one of the two resonant frequency ranges over which the voltage controlled tunable resonant circuit (100) is tuned by variation of the variable reactance element (130).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.