RF Local oscillator with low phase noise
US4551689A · kind A · utility
21Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1983 |
| Grant date | Nov 5, 1985 |
| Priority date | — |
| Expiry date | Feb 25, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/23
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An RF local oscillator, particularly useful in connection with phase shift key modulation in satellite communications systems, provides a low phase noise signal by use of a phase locked loop having a phase stable oscillator to provide frequency conversion of a frequency synthesizer output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.