Title:
ACOUSTIC WAVE RESONATOR, FILTER DEVICE, AND MULTIPLEXER
Document Type and Number:
WIPO Patent Application WO/2018/117060
Kind Code:
A1
Abstract:
An acoustic wave resonator (10) that comprises: IDT electrodes (11, 22) that are arranged along a prescribed direction (D1); a shared reflector (30) that is arranged between the IDT electrodes (11, 22); a first reflector (31) that, seen from IDT electrode (11), is provided on the opposite side from the shared reflector (30); and a second reflector (32) that, seen from IDT electrode (22), is provided on the opposite side from the shared reflector (30). IDT electrode (11) has comb busbars (15a, 15b), and IDT electrode (22) has comb busbars (25a, 25b). The first reflector (31) has reflector busbars (31a, 31b), and the second reflector (32) has reflector busbars (32a, 32b). Reflector busbar (31b) and comb busbar (15b) are arranged along the prescribed direction (D1) and connected to each other, and comb busbar (25b) and reflector busbar (32b) are arranged along the prescribed direction (D1) and connected to each other.
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Inventors:
KANEDA AKIO (JP)
Application Number:
PCT/JP2017/045402
Publication Date:
June 28, 2018
Filing Date:
December 18, 2017
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H9/145; H03H9/64; H03H9/72
Domestic Patent References:
| WO2008056697A1 | 2008-05-15 | |||
| WO2014133084A1 | 2014-09-04 | |||
| WO2013161881A1 | 2013-10-31 |
Foreign References:
| JPH07303023A | 1995-11-14 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
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