发明授权
- 专利标题： Signal extraction circuit and distortion-compensated amplifier incorporating the same
- 专利标题（中）： 信号提取电路和包含其的失真补偿放大器
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申请号： US11806197申请日： 2007-05-30
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公开(公告)号： US07456688B2公开(公告)日： 2008-11-25
- 发明人: Yousuke Okazaki , Hiroaki Maeda , Yasushi Seino , Takashi Ono
- 申请人： Yousuke Okazaki , Hiroaki Maeda , Yasushi Seino , Takashi Ono
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Hanify & King, P.C.
- 主分类号： H03F1/26
- IPC分类号： H03F1/26
摘要：
To cancel a reflected wave reflected from a connecting portion (22) and leaking into a feedback signal when a non-matched component is connected, the reflected wave is extracted by a circulator (30) and its phase and amplitude are adjusted by a vector adjusting circuit (32), and then the thus adjusted reflected wave is vector-summed with the feedback signal in a vector sum circuit (34).