Interface acoustic wave device made of lithium tantalate

Details Interface acoustic wave device made of lithium tantalate Interface acoustic wave device made of lithium tantalate

2006-10-24

2006-10-24

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S31300R, C310S358000, C310S359000, C333S193000, C333S194000, C333S195000

Reexamination Certificate

active

07126251

ABSTRACT:
The invention relates to interfaces acoutics wave components made of lithium tantalate. Two substrate make up the filter have the same cut and the same crystal orientation, the invention gives the best cut angles in particular for optimizing the electromechanical coupling coefficient that determines the final performance characteristics of the component produced. Curves giving the variations of the coupling coefficient an the attenuation as a function of the cut angles and of the direction of propagation are provided. The values of the main acoustic characteristics of the component for these optimum cut angles are also given. The application of this type of device are, on the on hand, uses as a passive component such a resonator or a filter or a delay line, or as an integrated device, either in a measurement chain or in any array of devices operating according to the principle of recognition of the device by a phase code.

REFERENCES:
patent: 5020034 (1991-05-01), Solal et al.
patent: 5081389 (1992-01-01), Abbott et al.
patent: 5369327 (1994-11-01), Wallnofer et al.
patent: 5434465 (1995-07-01), Sato et al.
patent: 5475348 (1995-12-01), Hode et al.
patent: 5703427 (1997-12-01), Solal et al.
patent: 5936487 (1999-08-01), Solal et al.
patent: 6011344 (2000-01-01), Dufilie et al.
patent: 6043726 (2000-03-01), Solal et al.
patent: 6044533 (2000-04-01), Bureau et al.
patent: 6054794 (2000-04-01), Naumenko et al.
patent: 6316861 (2001-11-01), Ballandras et al.
patent: 6344705 (2002-02-01), Solal et al.
patent: 6674215 (2004-01-01), Yoshida et al.
patent: 6838807 (2005-01-01), Ozaki et al.
patent: 2002/0017828 (2002-02-01), Roesler
patent: 2003/0137367 (2003-07-01), Kadota
patent: 2145750 (1973-02-01), None
patent: 2799906 (2001-04-01), None
patent: 57181220 (1982-11-01), None
patent: 59182617 (1984-10-01), None
patent: 10335974 (1999-03-01), None

Affiliated with

Also associated with

Rating

Interface acoustic wave device made of lithium tantalate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interface acoustic wave device made of lithium tantalate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interface acoustic wave device made of lithium tantalate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3717758