Cost effective low noise single loop synthesizer
US7545224B2 · kind B2 · utility
11Cited by
8References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2007 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Jun 17, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L2207/12
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A low cost, low phase noise microwave synthesizer includes a DDS modulation circuit and a phase-locked loop. The DDS modulation circuit modulates the output of a DDS to a high frequency. The phase-locked loop downconverts the DDS output and locks the downconverted signal to a relatively low frequency, fixed reference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.