Unilateral coupling for a quadrature voltage controlled oscillator
US6870432B2 · kind B2 · utility
15Cited by
2References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2003 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Jun 6, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J2200/10
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
According to some embodiments, unilateral coupling is provided for a quadrature voltage controlled oscillator. For example, a first voltage controlled oscillator may be provided with a 0 degree phase node and a 180 degree phase node A second voltage controlled oscillator may be provided with a 90 degree phase node and a 270 degree phase node. In addition, the first and second voltage controlled oscillators may be mutually coupled with substantially unilateral cascaded common-source common-gate amplifier coupling devices to create a quadrature voltage controlled oscillator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.