发明授权
US09448297B2 Mode splitter/combiner for noise figure minimization and control of power in RF coil arrays
有权
模式分路器/组合器，用于噪声系数最小化和RF线圈阵列功率的控制
- 专利标题： Mode splitter/combiner for noise figure minimization and control of power in RF coil arrays
- 专利标题（中）： 模式分路器/组合器，用于噪声系数最小化和RF线圈阵列功率的控制
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申请号： US14240520申请日： 2012-08-27
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公开(公告)号： US09448297B2公开(公告)日： 2016-09-20
- 发明人: George Randall Duensing
- 申请人： George Randall Duensing
- 申请人地址： NL Eindhoven
- 专利权人： KONINKLIJKE PHILIPS N.V.
- 当前专利权人： KONINKLIJKE PHILIPS N.V.
- 当前专利权人地址： NL Eindhoven
- 国际申请： PCT/IB2012/054366 WO 20120827
- 国际公布： WO2013/035007 WO 20130314
- 主分类号： A61B5/05
- IPC分类号： A61B5/05 ; G01R33/565 ; G01R33/36 ; H01Q3/26
摘要：
A magnetic resonance (MR) system (10) minimizes noise for modes of an array of coils (261, 262, . . . , 26n). The system (10) includes an array of coils (261, 262, . . . , 26n) in which the coils of the array (261, 262, . . . 26n) share impedances. A splitter/combiner (30) receives a plurality of signals (S1; S2, . . . , Sn) from each of the coils (261, 262, . . . , 26n) and converts the plurality of signals (S1; S2, . . . , Sn) to a plurality of signals (S1; S2, . . . , Sn) which are compensated for the shared impedance. The splitter/combiner (30) splits the received signals (S1; S2, . . . , Sn) into components and combines components of like frequency and/or phase to create the impedance compensated signals (S1; S2, . . . , Sn). Each impedance compensated signal is amplified by a corresponding preamplifier (381, 382, . . . , 38n).
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