Injection-locked frequency divider
US8390343B2 · kind B2 · utility
3Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2010 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Feb 8, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2200/0074
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An injection-locked frequency divider is provided and which includes an injection transistor, an oscillator, a current source and a transformer. The injection transistor is used to receive an injection signal. The oscillator is used to divide the injection signal to generate a divided frequency signal. The current source is coupled to the oscillator to provide a current to the oscillator. The transformer is coupled between the injection transistor and the oscillator to increase the equivalent transconductance of the injection transistor, and thus increasing the locking range of the injection-locked frequency divider.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.