Laterally coupled piezo-resonator ladder-type filter with at lea

Details Laterally coupled piezo-resonator ladder-type filter with at lea Laterally coupled piezo-resonator ladder-type filter with at lea

1995-04-18

1997-06-03

Lee, Benny

Wave transmission lines and networks

Coupling networks

Electromechanical filter

310368, H03H 954

Patent

active

056358822

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 two plate-type resonators are laterally coupled with each other with respect to a mounting surface. 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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