Invention Grant
- Patent Title: Layered bandpass filter
- Patent Title (中): 分层带通滤波器
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Application No.: US13429982Application Date: 2012-03-26
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Publication No.: US08952767B2Publication Date: 2015-02-10
- Inventor: Eiko Wakata , Shigemitsu Tomaki , Isao Abe
- Applicant: Eiko Wakata , Shigemitsu Tomaki , Isao Abe
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2011-073970 20110330
- Main IPC: H03H7/12
- IPC: H03H7/12 ; H01P1/203 ; H03H1/00

Abstract:
A bandpass filter includes a layered structure including a plurality of stacked dielectric layers, and first to third resonators provided within the layered structure. In terms of circuit configuration, the second resonator is located between the first and third resonators. The first resonator includes a first inductor and a first capacitor. The second resonator includes a second inductor and a second capacitor. The third resonator includes a third inductor and a third capacitor. The second inductor is disposed at a position different from that of each of the first and third inductors in the stacking direction of the dielectric layers. The second inductor is lower in inductance than the first and third inductors. The second capacitor is higher in capacitance than the first and third capacitors.
Public/Granted literature
- US20120249264A1 LAYERED BANDPASS FILTER Public/Granted day:2012-10-04
Information query
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