Surface acoustic wave resonator device

Details Surface acoustic wave resonator device Surface acoustic wave resonator device

1981-11-06

1984-01-10

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

310313D, 333196, H03H 925, H03H 964

Patent

active

044255543

ABSTRACT:
A surface acoustic wave resonator device including a transducer and grating reflectors having an aperture length, wherein the transducer, which is disposed on a piezoelectric substrate, includes a plurality of interdigital transducers connected to each other in series and aligned to form surface acoustic wave propagation paths parallel to each other, the grating reflectors are disposed on opposite sides of the transducer on the piezoelectric substrate, the aperture length of the grating reflectors extending at least the width of said surface acoustic wave propagation paths and preferably being substantially the same effective length as that of the transducer.

REFERENCES:
patent: 3886504 (1975-05-01), Hartmann et al.
patent: 4130813 (1978-12-01), Sandy et al.
patent: 4151492 (1979-04-01), Sandy et al.
patent: 4257021 (1981-03-01), Coussot et al.
Sandy et al., "Surface Acoustic Wave Ring Filter", 1976 Ultrasonics Symposium Proceedings, IEEE Cat. No. 76, CHIIU-5 SU; pp. 391-396.
Schoenwald et al., "Surface Acoustic Wave Resonator Development", Annual Symposium on Frequency Control, May 1975; pp. 150-157.
Takahashi et al., "Saw if Filter on LiTaO.sub.3 for Color TV Receivers", IEEE Transactions on Consumer Electronics, vol. CE-24, No. 3, Aug. 1978; pp. 337-346.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-455110