Invention Grant
- Patent Title: Filter device having a first inductance in a chip substrate and a second inductance in a mounting substrate
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Application No.: US14637742Application Date: 2015-03-04
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Publication No.: US09608593B2Publication Date: 2017-03-28
- Inventor: Tetsuro Okuda
- Applicant: Murata Manufacturing Co., Ltd.
- Applicant Address: JP Kyoto
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP2012-205542 20120919
- Main IPC: H03H9/72
- IPC: H03H9/72 ; H03H9/64 ; H03H9/54 ; H03H9/205 ; H03H9/00 ; H03H9/05 ; H03H9/25 ; H03H7/46

Abstract:
A filter device with a ladder circuit configuration includes series arm resonators and parallel arm resonators, a filter component mounted on a mounting substrate and including a chip substrate and an elastic wave filter chip, a circuit configuration in which a plurality of series arm resonators and parallel arm resonators are defined by the elastic wave filter chip, and inductances are connected between ground-potential-side end portions of the plurality of parallel arm resonators and a ground potential, and in which at least one of the plurality of inductances is provided in the chip substrate and a remaining at least one inductance is provided in the mounting substrate.
Public/Granted literature
- US20150180447A1 FILTER DEVICE Public/Granted day:2015-06-25
Information query
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