Ceramic filter using multiple thin piezoelectric layers

Details Ceramic filter using multiple thin piezoelectric layers Ceramic filter using multiple thin piezoelectric layers

1984-08-29

1986-01-14

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310358, H01L 4108

Patent

active

045647828

ABSTRACT:
A ceramic filter including a piezoelectric ceramic and input and output electrode groups disposed within the ceramic body. The input electrode group and the output electrode group extend toward each other from opposing sides of the piezoelectric ceramic. They do not meet, however, and a predetermined spacing, along the thickness dimension of the ceramic, separates the two electrode groups. The input and output electrode groups are each composed of a plurality of electrodes which overlap each other with ceramic layers interposed therebetween.

REFERENCES:
patent: Re27116 (1971-04-01), Miller
patent: 3489931 (1970-01-01), Teaford
patent: 3562792 (1971-02-01), Berlincourt et al.
patent: 3590287 (1971-06-01), Berlincourt et al.
patent: 4019073 (1977-04-01), Visnevsky et al.
patent: 4087716 (1978-05-01), Haywang

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