Cancellation of anti-resonance in resonators
US7965157B2 · kind B2 · utility
1Cited by
18References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2005 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | May 10, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/458
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Briefly, in accordance with one embodiment of the invention, a resonator such as an electromechanical resonator may be coupled with a cancellation network to reduce and/or cancel an anti-resonance effect in the resonator, which may be due to, for example, a static capacitance inherent in the resonator. Cancellation of an anti resonance effect from the resonator response may allow a resonance effect of the resonator to be a predominant effect to allow the resonator to be utilized as a bandpass filter having a relatively higher Q, for example in a bandpass sigma-delta modulator that may be utilized in a digital RF receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.