Damping structure for elastic surface wave device

Details Damping structure for elastic surface wave device Damping structure for elastic surface wave device

1977-08-22

1979-02-13

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310326, 333 30R, H01L 4110

Patent

active

041397916

ABSTRACT:
An elastic surface wave device comprises a piezoelectric substrate; input and output interdigital transducers provided on one surface of the piezoelectric substrate and mutually spaced apart from each other to define a surface wave propagation path therebetween; and a surface wave absorber partially overlappingly provided on that end portion of at least one of the transducers which lies on an extension of the surface wave propagation path, the absorber having opposite side edges diagonally intersecting with respect to the surface wave propagation path.

REFERENCES:
patent: 3715674 (1973-02-01), Bahr
patent: 3908137 (1975-09-01), Hunsinger et al.
patent: 4030050 (1977-06-01), Deacon
patent: 4034318 (1977-07-01), Ishiyama et al.

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