High piezoelectric coupling, low diffraction loss, temperature c

Details High piezoelectric coupling, low diffraction loss, temperature c High piezoelectric coupling, low diffraction loss, temperature c

1977-08-19

1978-08-22

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310360, H01L 4110

Patent

active

041091736

ABSTRACT:
Doubly rotated propagation surface defining cuts of single crystal berlinite (AIPO.sub.4) are utilized to provide temperature compensated surface acoustic wave (SAW) substrates having high piezoelectric coupling factors and low diffraction losses. A preferred embodiment of the invention comprises a berlinite substrate member having a propagation surface that substantially coincides with a plane defined by Euler angles Lambda = 76.8.degree., mu = 90.0.degree., and Theta = 11.5.degree.. An alternative embodiment utilizes a propagation surface that substantially coincides with a plane defined by Euler angles Lambda = 79.7.degree., mu = 90.0.degree., and Theta = 15.5.degree..

REFERENCES:
patent: 3866153 (1975-02-01), Slobodnik, Jr.
patent: 3956718 (1976-05-01), Weinert et al.
patent: 3983515 (1976-09-01), Mitchell et al.
patent: 4001767 (1977-01-01), Slobodnik, Jr.

Affiliated with

Also associated with

Rating

High piezoelectric coupling, low diffraction loss, temperature c does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High piezoelectric coupling, low diffraction loss, temperature c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High piezoelectric coupling, low diffraction loss, temperature c will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1560923