发明授权
- 专利标题： Diplexer duplexer and two-channel mobile communications equipment
- 专利标题（中）： 双工器双工器和双通道移动通信设备
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申请号： US09077254申请日： 1998-05-26
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公开(公告)号： US06366564B1公开(公告)日： 2002-04-02
- 发明人: Masahiro Hiraka , Hidenori Katsumura , Ryuichi Saito , Hiroshi Kushitani , Naoki Yuda , Shigeo Hurukawa , Suzushi Kimura
- 申请人： Masahiro Hiraka , Hidenori Katsumura , Ryuichi Saito , Hiroshi Kushitani , Naoki Yuda , Shigeo Hurukawa , Suzushi Kimura
- 优先权： JP8-254130 19960926; JP9-108788 19970425; JP9-188071 19970714
- 主分类号： H04B156
- IPC分类号： H04B156
摘要：
A diplexer employed in mobile communications equipment such mobile phones which can divide signals into two channels with a simple configuration without interfering the other band. In this diplexer, an inductor 105 is connected between a &pgr;-type three-stage one polar low-pass filter 115 and a common terminal 113 as a first matching circuit, and a capacitor 106A is connected between a one polar band-pass filter 116 and a common terminal 113 as a second matching circuit so that interference with the other band can be prevented and the higher harmonics can be sufficiently attenuated with simple configuration.
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