发明授权
- 专利标题: Leakage power reduction apparatus
- 专利标题(中): 漏电减压装置
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申请号: US12114218申请日: 2008-05-02
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公开(公告)号: US08086191B2公开(公告)日: 2011-12-27
- 发明人: Atsushi Fukuda , Hiroshi Okazaki , Shoichi Narahashi
- 申请人: Atsushi Fukuda , Hiroshi Okazaki , Shoichi Narahashi
- 申请人地址: JP Tokyo
- 专利权人: NTT DoCoMo, Inc.
- 当前专利权人: NTT DoCoMo, Inc.
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JP2007-122490 20070507
- 主分类号: H04B1/04
- IPC分类号: H04B1/04
摘要:
A circulator extracts a transmission signal sent from a transmitter to antenna via the circulator and a duplexer, reflected by an antenna, and returned via the duplexer to the transmitter side. The amplitude and phase of the extracted signal are adjusted by an amplitude-and-phase adjuster to generate an offset signal having the same amplitude and the opposite phase with respect to a leaking transmission signal included in a signal output from a third terminal of the duplexer when combined by a combiner. The offset signal is combined in the combiner with the leaking transmission signal included in the signal output from the third terminal of the duplexer to suppress the leaking transmission signal.
公开/授权文献
- US20080279122A1 LEAKAGE POWER REDUCTION APPARATUS 公开/授权日:2008-11-13