Surface acoustic wave device
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United States of America Patent
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May 12, 2020
Grant Date -
Dec 7, 2017
app pub date -
Dec 24, 2015
filing date -
Dec 24, 2014
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Abstract
Provided is a surface acoustic wave device using a novel and steadily suppliable piezoelectric material that is resistant to a high-temperature environment and enables the surface acoustic wave device to use a 2 GHz to 2.5 GHz band or higher. The surface acoustic wave device includes: a piezoelectric substrate formed from a monocrystal of gehlenite (CAS: Ca2Al(AlSi)O7); and interdigital transducers formed on a surface acoustic wave propagation plane of the piezoelectric substrate.
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