Symmetrical piezoelectric resonator filter

Details Symmetrical piezoelectric resonator filter Symmetrical piezoelectric resonator filter

1998-07-27

1999-08-24

Pascal, Robert

Wave transmission lines and networks

Coupling networks

Electromechanical filter

310320, 310366, 333191, H03H 956, H03H 954

Patent

active

059429585

ABSTRACT:
A microwave filter made of piezoelectric resonators fabricated in a monolithic device. Combinations of resonators connected in series and and parallel to each other are laid out in a symmetrical compact arrangement providing symmetrical and similar paths connecting the resonators together and to the ground. The symmetrical layout thus avoids differences in the connector inductances that otherwise would degrade filter performance.

REFERENCES:
patent: 3222622 (1965-12-01), Curran et al.
patent: 5692279 (1997-12-01), Mang et al.
patent: 5872493 (1999-02-01), Ella

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