ELASTIC WAVE DEVICE

An elastic wave device capable of obtaining good characteristics while maintaining sufficient mechanical strength in an ultra-high frequency band of 6 GHz or higher includes: a piezoelectric substrate; an electrode in contact with the piezoelectric substrate; and an acoustic multilayer film in conta...

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Main Authors KADOTA, Michio, TANAKA, Shuji
Format Patent
LanguageEnglish
Published 15.09.2022
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
RESONATORS
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Abstract An elastic wave device capable of obtaining good characteristics while maintaining sufficient mechanical strength in an ultra-high frequency band of 6 GHz or higher includes: a piezoelectric substrate; an electrode in contact with the piezoelectric substrate; and an acoustic multilayer film in contact with the piezoelectric substrate and/or the electrode. The elastic wave device is configured to utilize higher-order modes of resonance characteristics of bulk waves. The acoustic multilayer film has a low acoustic impedance film and a high acoustic impedance film which are alternately stacked.
AbstractList An elastic wave device capable of obtaining good characteristics while maintaining sufficient mechanical strength in an ultra-high frequency band of 6 GHz or higher includes: a piezoelectric substrate; an electrode in contact with the piezoelectric substrate; and an acoustic multilayer film in contact with the piezoelectric substrate and/or the electrode. The elastic wave device is configured to utilize higher-order modes of resonance characteristics of bulk waves. The acoustic multilayer film has a low acoustic impedance film and a high acoustic impedance film which are alternately stacked.
Author TANAKA, Shuji
KADOTA, Michio
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Snippet An elastic wave device capable of obtaining good characteristics while maintaining sufficient mechanical strength in an ultra-high frequency band of 6 GHz or...
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SubjectTerms BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
RESONATORS
Title ELASTIC WAVE DEVICE
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