Trapped-Energy Piezoelectric Ceramic Resonator and Filter with Internal Electrodes

A trapped-energy piezoelectric ceramic resonator, a double mode filter and a tandem structure filter with internal electrodes, operating in a thickness-extensional mode, are presented. The resonator and filters are produced by a multilayer ceramic technology. It has been experimentally ascertained t...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 1987-01, Vol.26 (S1), p.147
Main Authors: Inoue, Takeshi, Utsumi, Kazuaki, Suzuki, Masanori, TAkahashi, Sadayuki
Format: Article
Language:English
Online Access:Get full text
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Description
Summary:A trapped-energy piezoelectric ceramic resonator, a double mode filter and a tandem structure filter with internal electrodes, operating in a thickness-extensional mode, are presented. The resonator and filters are produced by a multilayer ceramic technology. It has been experimentally ascertained that the resonator and filters show good energy-trapping characteristics due to the high electromechanical coupling for piezoelectric ceramic material, though ceramic layers cover both surfaces of the piezoelectric plate on which energy-trapping electrodes are formed. The possibilities of frequency adjustments by lapping the surface ceramic layers are also examined.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAPS.26S1.147