Transformer coupled quadrature tuned oscillator
US6639481B1 · kind B1 · utility
25Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2002 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Aug 20, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B27/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
First and second oscillator cells include tank circuits that may be tuned to a desired resonant frequency using varactors as variable reactance devices in a phase-shifting network. First and second transformers are connected to the oscillator cells to control the varactors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.