Invention Grant
- Patent Title: Acoustic wave device
- Patent Title (中): 声波装置
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Application No.: US12821025Application Date: 2010-06-22
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Publication No.: US08344825B2Publication Date: 2013-01-01
- Inventor: Toshio Nishizawa , Go Endo
- Applicant: Toshio Nishizawa , Go Endo
- 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: JP2009-157110 20090701
- Main IPC: H03H9/70
- IPC: H03H9/70 ; H03H9/72 ; H03H9/54 ; H03H9/64
Abstract:
An acoustic wave device includes an input terminal; a balun that is connected to the input terminal, converts a signal input from the input terminal into two anti-phase signals, and outputs the two anti-phase signals; and a filter that is connected to the balun, and outputs the two anti-phase signals input from the balun as balanced output signals. An output impedance of the balun is equal to an input impedance of the filter, and is larger than an output impedance of the filter.
Public/Granted literature
- US20110001581A1 ACOUSTIC WAVE DEVICE Public/Granted day:2011-01-06
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