Parametric feedback oscillators
US8378758B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2011 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Aug 22, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B5/326
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A parametric feedback oscillator includes a resonator which has at least one transduction element and at least one electromechanical resonating element. The resonator is configured to accept as input a parametric excitation signal at a frequency 2ω0 and to provide a resonating output signal at a frequency ω0. A cascaded feedback path in any electrically coupled cascade order includes at least one non-linear element, at least one phase shifter electrically, and at least one amplifier. The cascade feedback path is configured to receive as input the resonating output signal at a frequency ω0 and configured to provide as output a feedback path signal as the parametric excitation signal at a frequency 2ω0 to the resonator. A parametric feedback oscillator output terminal is configured to provide the resonating output signal at the frequency ω0 as an output signal. A method of causing a parametric feedback oscillation is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.