Invention Grant
US08049583B2 Acoustic wave filter comprising a reflector having an oblique slit
失效
声波滤波器，包括具有倾斜狭缝的反射器
- Patent Title: Acoustic wave filter comprising a reflector having an oblique slit
- Patent Title (中): 声波滤波器，包括具有倾斜狭缝的反射器
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Application No.: US12397719Application Date: 2009-03-04
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Publication No.: US08049583B2Publication Date: 2011-11-01
- Inventor: Kouta Ohkubo , Yasufumi Kaneda
- Applicant: Kouta Ohkubo , Yasufumi Kaneda
- Applicant Address: JP Tokyo
- Assignee: Taiyo Yuden Co., Ltd.
- Current Assignee: Taiyo Yuden Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Chen Yoshimura LLP
- Priority: JP2008-059813 20080310
- Main IPC: H03H9/64
- IPC: H03H9/64 ; H03H9/25
Abstract:
An acoustic wave filter includes a piezoelectric substrate, an IDT (interdigital transducer) formed on the piezoelectric substrate, and reflectors located at both sides of the IDT and composed of electrode fingers, at least one of the electrode fingers of at least one of the reflectors including at least one gap within a propagation path of an acoustic wave.
Public/Granted literature
- US20090224854A1 ACOUSTIC WAVE FILTER Public/Granted day:2009-09-10
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