Wave transmission lines and networks – Coupling networks – Electromechanical filter
Patent
1994-08-08
1997-07-15
Lee, Benny T.
Wave transmission lines and networks
Coupling networks
Electromechanical filter
310368, H03H 954
Patent
active
056487460
ABSTRACT:
A ladder-type filter having a circuit structure obtained by connecting a plurality of series resonators and a plurality of parallel resonators with each other. At least one plate type series resonator and at least one plate type parallel resonator are stacked with each other. At least one of the series and parallel resonators is an energy trap type piezo-resonator having a plate type piezoelectric vibrating part, a support part which is coupled to the piezoelectric vibrating part, and a holding part which is coupled to the support part.
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Bettendorf Justin P.
Lee Benny T.
Murata Manufacturing Co. Ltd.
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