Title:
ACOUSTIC WAVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/058579
Kind Code:
A1
Abstract:
Provided is an acoustic wave device of which the characteristics are not liable to deteriorate. An acoustic wave device 11 comprises a piezoelectric substrate 12, a first terminal 21 and a second terminal 22 provided on the piezoelectric substrate 12, and a resonator including an IDT electrode 13 sandwiched between the first terminal 21 and the second terminal 22 in an acoustic wave propagation direction, wherein: the resonator includes the IDT electrode 13, and first and second reflectors 14, 15; the IDT electrode 13 includes first and second bus bars 13a, 13b; in the acoustic wave propagation direction, the first reflector 14 is positioned on the first signal terminal 21 side, and the second signal terminal 22 is positioned on the second reflector 15 side; the first bus bar 13a is connected to the first reflector 14 and the first terminal 21; and the second bus bar 13b is connected to the second reflector 15 and the second terminal 22.
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Inventors:
YASUDA JUNPEI (JP)
Application Number:
PCT/JP2022/036787
Publication Date:
April 13, 2023
Filing Date:
September 30, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H9/145; H03H9/25
Domestic Patent References:
| WO2018030170A1 | 2018-02-15 | |||
| WO2018181932A1 | 2018-10-04 |
Foreign References:
| JP2001345657A | 2001-12-14 | |||
| JP2002374137A | 2002-12-26 |
Attorney, Agent or Firm:
OSAKA FRONT (JP)
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