Adjustable capacitor and circuit provided therewith

Details Adjustable capacitor and circuit provided therewith Adjustable capacitor and circuit provided therewith

2011-08-30

2011-08-30

Ha, Nguyen T (Department: 2835)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C361S272000, C361S277000, C361S278000, C361S312000, C361S313000

Reexamination Certificate

active

08009407

ABSTRACT:
A capacitor includes a multi layer structure on a ceramic or crystalline substrate. The multilayer structure includes a lower electrode, an upper electrode, and a dielectric that is tunable by a voltage applied to the electrodes. The multilayer structure is configured such that resonant oscillation modes of bulk acoustic waves can be propagated in the multilayer structure and such that the resonant frequencies of the oscillation modes are outside a first band range of between 810 and 1000 MHz, second band range of between 1700 and 2205 MHz and third band range of between 2400 and 2483.5 MHz.

REFERENCES:
patent: 6417740 (2002-07-01), Anh et al.
patent: 6509813 (2003-01-01), Ella et al.
patent: 6933807 (2005-08-01), Marksteiner et al.
patent: 7495882 (2009-02-01), Petz et al.
patent: 7808254 (2010-10-01), Seppa et al.
patent: 2004/0238866 (2004-12-01), Iwashita et al.
patent: 2006/0164183 (2006-07-01), Tikka et al.
patent: 0 913 001 (2004-02-01), None
patent: 1 418 671 (2004-05-01), None
patent: WO2004/034579 (2004-04-01), None
Koutsaroff I. P. et al “Dielectric Properties of (BaSR)TiO3 Thin Film Capacitors Fabricated on Alumina Substrates” Materials Research Society Symposium Proc. vol. 748, 2003 Materials Research Society.
Koutsaroff I. P. et al “Microwave Properties of parallel Plate Capacitors based on (Ba.Sr)TiO3 Thin Films grown on SiO2/A/203 Substrates” Materials Research Society Symposium Proc. vol. 784, 2004, Materials Researeh Society, pp. 319-325.
Tappe S. et al “Electrostrictive Resonances in (Ba0.7Sr0.3)TiO3 Thin Films at Microwave Frequencies” Applied Physics Letters, vol. 85, No. 4, Jul. 2004 pp. 624-626.
York R. A. et al “Synthesis and Characterization of (BaxSr1-x)Til+yO3+z Thin Films and Integration into Microwave Varactors and Phase Shifters” Integrated Forroelectrics, 2001, vol. 34, pp. 177-188.
International Search Report for PCT/DE2006/001595.
Written Opinion for PCT/DE2006/001595.
English translation of Written Opinion for PCT/DE2006/001595.

Affiliated with

Also associated with

Rating

Adjustable capacitor and circuit provided therewith does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adjustable capacitor and circuit provided therewith, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable capacitor and circuit provided therewith will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2694473