Surface acoustic wave device employing reflectors

Details Surface acoustic wave device employing reflectors Surface acoustic wave device employing reflectors

1981-11-13

1983-10-18

Beha, Jr., William H.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

29 2535, 333194, 333195, H03H 925, H03H 964

Patent

active

044108230

ABSTRACT:
Electric domain reversals are arranged in parallel arrays on a piezoelectric ceramic substrate to form strong reflectors of surface acoustic waves in devices such as filters, resonators and the like. The domains are prepared by a poling process involving the use of a selective electrode pattern to which a high DC voltage is applied at a temperature above ambient but below the Curie temperature of the substrate.

REFERENCES:
patent: 3071841 (1963-01-01), Brussaard et al.
patent: 3713036 (1973-01-01), Thomann
patent: 3886504 (1975-05-01), Hartmann et al.
patent: 3961293 (1976-06-01), Hartmann et al.
patent: 4037175 (1977-07-01), Kansy et al.
Miller, et al., "Filamentary Domain-Reversal Defects in Y-Z LiNbO.sub.3 ", Ultrasonics Symposium, Boston, Sep. 26-28, 1979.
DeVries, et al., "Acoustic Effects of Filamentary Defects in Y-Z LiNbO.sub.3 ", Ultrasonics Symposium, Boston, Sep. 26-28, 1979.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1291688