Saw resonator

Details Saw resonator Saw resonator

2006-08-17

2008-11-25

Tran, Anh Q (Department: 2819)

Wave transmission lines and networks

Coupling networks

Electromechanical filter

C333S193000, C310S31300R, C310S31300R

Reexamination Certificate

active

07456710

ABSTRACT:
A surface acoustic wave (SAW) resonator, including: a first interdigital transducer composed of a pair of interdigital electrodes provided in a propagation direction of a surface acoustic wave; a second interdigital transducer composed of a pair of interdigital electrodes provided in parallel to the first interdigital transducer; and a switch that alternately switches the pair of interdigital electrodes of the first interdigital transducer and the pair of interdigital electrodes of the second interdigital transducer; whereinin-line-formulae description="In-line Formulae" end="lead"?7λ≦B≦33λin-line-formulae description="In-line Formulae" end="tail"?where λ is a wavelength of a surface acoustic wave, and B is an addition of a width a1of an engaged section of electrode fingers of the first interdigital transducer, a width a2of an engaged section of electrode fingers of the second interdigital transducer, and a distance b between the engaged sections of both interdigital transducers.

REFERENCES:
patent: 5793266 (1998-08-01), Allen et al.
patent: 7230501 (2007-06-01), Ogiso
patent: 7321279 (2008-01-01), Yoneya
patent: B2-2925158 (1999-05-01), None
patent: A-2004-040421 (2004-02-01), None
patent: A-2005-303357 (2005-10-01), None

Affiliated with

Also associated with

Rating

Saw resonator does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4047028