A piezoelectric double-mode filter using the complex-branch-type energy trapping.

A piezoelectric double-mode filter using the complex-branch-type energy trapping. Research Abstract Details 

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A piezoelectric double-mode filter using the complex-branch-type energy trapping. Abstract Text:

H Watanabe,K Nakamura,H Shimizu,

A piezoelectric double-mode filter using the complex-branch-type energy trapping, that is caused by contributions from the complex branches of dispersion curves is proposed, and its theoretical and experimental results are presented for the width-extensional modes in a thin piezoelectric ceramic strip. Characteristics of the symmetric and antisymmetric trapped-energy modes in this filter have some interesting features different from those of the usual trapped-energy modes, such as noticeable undulations in the resonant frequency spectrum and sinusoidally oscillating decay of displacement in the unelectroded region. Based on these results, double-mode filters with a center frequency of about 1 MHz and a 3-dB fractional bandwidth of 3% are constructed. The filters of this type are useful in the medium frequency range below several megahertz because of the miniature size and the ease of supporting.

A piezoelectric double-mode filter using the complex-branch-type energy trapping. Publishing Authors By Initials

H Watanabe,K Nakamura,H Shimizu,

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A piezoelectric double-mode filter using the complex-branch-type energy trapping. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: IEEE transactions on ultrasonics, ferroelectrics,

VOLUME: 39

Page Numbers: 311-8

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ISSN: 0885-3010

DAY: 12

MONTH: 02

YEAR: 1992

A piezoelectric double-mode filter using the complex-branch-type energy trapping. Information

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LANGUAGE: eng

NlmUniqueID: 9882735

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Grant and Affiliation Information for A piezoelectric double-mode filter using the complex-branch-type energy trapping.

AFFILIATION: Fukushima Nat. Coll. of Technol., Iwaki.

Country: United States

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MEDLINETA: IEEE Trans Ultrason Ferroelect

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