Acoustic wave element and acoustic wave device using same
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United States of America Patent
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May 12, 2020
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N/A
app pub date -
Apr 17, 2018
filing date -
Jun 28, 2011
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Abstract
An IDT electrode of a SAW element has a plurality of first dummy electrodes which extend from the first bus bar to the second bus bar side and have tips which face the tips of the plurality of second electrode fingers through a plurality of first gaps, and a plurality of second dummy electrodes which extend from the second bus bar to the first bus bar side and have tips which face the tips of the plurality of first electrode fingers through a plurality of second gaps. The plurality of first gaps and the plurality of second gaps are arranged to be inclined to the same side relative to the propagation direction of SAW. When the inclination angles of the first gaps and the second gaps relative to the propagation direction are a first angle θA and a second angle θB, the following are true: 10°≤θA≤26°, and 10°≤θB≤26°.
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