Patent · US Active

Capacitors adapted for acoustic resonance cancellation

US8400752B2 · kind B2 · utility

0Cited by

67References

10Claims

0Family size

Assignee

Research In Motion RF, Inc. · US

Inventors

James Oakes · Westford, US
James Martin · Kingsport, US

Key dates

Filing date	Mar 23, 2011
Grant date	Mar 19, 2013
Priority date	—
Expiry date	Mar 23, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH01G7/06
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An embodiment of a tunable capacitor can include a plurality of capacitors connected in series where at least two capacitors of the plurality of capacitors share a common electrode where the at least two capacitors are in lateral proximity and a bias that is capable of being applied to the at least two capacitors whereby the at least two capacitors vibrate in opposite phase to each other when the bias and an RF signal is applied to the at least two capacitors.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.