Low phase noise MEMS-based oscillator with bifurcation and parametric noise squeezing
US8466754B1 · kind B1 · utility
4Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2011 |
| Grant date | Jun 18, 2013 |
| Priority date | — |
| Expiry date | Jun 3, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2200/009
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention is a method for reducing phase noise in oscillator signals. For example, the oscillator may be a low phase noise MEMS-based oscillator and may include a resonator (ex.—a MEMS resonator). Further, the resonator of the oscillator may be operated near a bifurcation point. Still further, the MEMS resonator may be parametrically pumped in such a way so as to redistribute the quadrature signal noise (ex.—phase noise) to in-phase noise (ex.—amplitude noise).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.