Radio frequency data communications device
US6696879B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2000 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Nov 22, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/148
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A frequency doubler includes a first Gilbert cell, a second Gilbert cell coupled to the first Gilbert cell, a frequency generator configured to apply a first sinusoidal wave to the first Gilbert cell, and a phase shifter applying a sinusoidal wave shifted from the first sinusoidal wave to the second Gilbert cell. A method of doubling frequency without using a feedback loop includes providing a first Gilbert cell, providing a second Gilbert cell coupled to the first Gilbert cell, applying a first sinusoidal wave to the first Gilbert cell, and applying a sinusoidal wave shifted from the first sinusoidal wave to the second Gilbert cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.