Piezoelectric ceramic filter

Details Piezoelectric ceramic filter Piezoelectric ceramic filter

1978-11-22

1980-04-01

Smith, Alfred E.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

310326, 310366, H03H 926, H03H 932, H03H 906

Patent

active

041964071

ABSTRACT:
A piezoelectric ceramic multiple mode filter exploiting the energy trapping theory, wherein the resistance between the ground electrode and the electrode for external connection is between several ohms and several tens of ohms. In a preferred embodiment, the connection lead between the ground electrode and the electrode for external connection is designed to provide the necessary resistance.

REFERENCES:
patent: 3633134 (1972-01-01), Barrows et al.
patent: 3676724 (1972-07-01), Berlincourt et al.
patent: 3727154 (1973-04-01), Dailing et al.

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