Digitally controlled injection locked oscillator
US9024696B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Mar 15, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2201/0291
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An injection locking oscillator (ILO) comprising a tank circuit having a digitally controlled capacitor bank, a cross-coupled differential transistor pair coupled to the tank circuit, at least one signal injection node, and at least one output node configured to provide an injection locked output signal; a digitally controlled injection-ratio circuit having an injection output coupled to the at least one signal injection node, configured to accept an input signal and to generate an adjustable injection signal applied to the at least one injection node; and, an ILO controller connected to the capacitor bank and the injection-ratio circuit configured to apply a control signal to the capacitor bank to adjust a resonant frequency of the tank circuit and to apply a control signal to the injection-ratio circuit to adjust a signal injection ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.