Differential voltage-controlled (VCO) oscillator
US10826431B2 · kind B2 · utility
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4References
20Claims
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Key dates
| Filing date | May 31, 2019 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | May 31, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B5/1296
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present application relates to a differential Colpitts voltage-controlled oscillator (VCO) circuit, which comprises a pair of transistors with control terminals biased by a common biasing voltage and a pair of couplers arranged to cross-couple corrector/drain of the transistors and the base/gate of the differential transistors. The pair of couplers have a coupling factor kc, which used to enhance the transconductance of the transistor pair, therefore can be used for power consumption reduction and phase noise minimalization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.