发明授权
- 专利标题： Double tuned bird cage coil
- 专利标题（中）： 双调鸟笼线圈
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申请号： US331935申请日： 1989-03-31
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公开(公告)号： US4916418A公开(公告)日： 1990-04-10
- 发明人: Alan R. Rath
- 申请人： Alan R. Rath
- 申请人地址： CA Palo Alto
- 专利权人： Varian Associates, Inc.
- 当前专利权人： Varian Associates, Inc.
- 当前专利权人地址： CA Palo Alto
- 主分类号： A61B5/055
- IPC分类号： A61B5/055 ; G01R33/36
摘要：
A multiply tuned bird cage results from the combination of low pass and high pass filter elements to yield a band reject network behaving as a low pass network at a low frequency and a high pass network at a high frequency. A band pass bird cage coil is obtained by adding a parallel LC combination to each leg of a bird cage coil to create additional poles in the impedance curve z(f).