Invention Grant
- Patent Title: Filter device with balanced signal input and output terminals
- Patent Title (中): 具有平衡信号输入和输出端子的滤波器
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Application No.: US11943009Application Date: 2007-11-20
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Publication No.: US07864002B2Publication Date: 2011-01-04
- Inventor: Koichi Wada
- Applicant: Koichi Wada
- Applicant Address: JP Tokyo
- Assignee: Taiyo Yuden Co., Ltd
- Current Assignee: Taiyo Yuden Co., Ltd
- Current Assignee Address: JP Tokyo
- Agency: Arent Fox, LLP
- Priority: JP2006-315496 20061122
- Main IPC: H03H9/54
- IPC: H03H9/54 ; H03H9/64
Abstract:
A filter device has a novel structure, satisfying requirements to have balanced input and output, with a small number of configuration elements. The above filter device includes first and second balanced signal terminals on the input side to be connected to an external balance circuit; first and second balanced signal, terminals on the output side to be connected to an external balance circuit; at least one first resonator connected in series between the first balanced signal terminal on the input side and the first balanced signal terminal on the output side; at least one second resonator connected in series between the second balanced signal terminal on the input side and the second balanced signal terminal on the output side; and at least one impedance element connected between the first balanced signal terminal on the output side and the second balanced signal terminal on the input side.
Public/Granted literature
- US20080117001A1 Filter Device Public/Granted day:2008-05-22
Information query
IPC分类:
