发明授权
- 专利标题: Active-type band-pass filter
- 专利标题(中): 主动式带通滤波器
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申请号: US92366申请日: 1993-07-15
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公开(公告)号: US5379009A公开(公告)日: 1995-01-03
- 发明人: Youhei Ishikawa , Seiji Hidaka
- 申请人: Youhei Ishikawa , Seiji Hidaka
- 申请人地址: JPX Kyoto
- 专利权人: Murata Manufacturing Co., Ltd.
- 当前专利权人: Murata Manufacturing Co., Ltd.
- 当前专利权人地址: JPX Kyoto
- 优先权: JPX4-190398 19920717
- 主分类号: H01P1/20
- IPC分类号: H01P1/20 ; H01P7/10 ; H03H11/12 ; H01P7/00
摘要:
An active-type band pass filter achieves a compact structure and a minimum noise figure by setting a coupling Q factor (Q.sub.e1) on an input side of an amplifier, a coupling Q factor (Q.sub.e2) on an output side of the amplifier, and a gain G of the amplifier so that they satisfy the condition that Q.sub.e1
公开/授权文献
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