发明授权
- 专利标题： Radio-frequency acquisition device for a magnetic resonance tomography apparatus
- 专利标题（中）： 用于磁共振断层摄影装置的射频获取装置
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申请号： US12179109申请日： 2008-07-24
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公开(公告)号： US07583083B2公开(公告)日： 2009-09-01
- 发明人: Stephan Biber , Klaus Huber
- 申请人： Stephan Biber , Klaus Huber
- 申请人地址： DE Munich
- 专利权人： Siemens Aktiengesellschaft
- 当前专利权人： Siemens Aktiengesellschaft
- 当前专利权人地址： DE Munich
- 代理机构： Schiff Hardin LLP
- 优先权： DE102007034492 20070724
- 主分类号： G01V3/00
- IPC分类号： G01V3/00
摘要：
A radio-frequency acquisition device for a magnetic resonance tomography apparatus has at least one reception antenna for acquisition of magnetic resonance signals and with an amplifier device to amplify acquired magnetic resonance signals. The amplifier device has an input transistor and a transformation device to transform the source impedance of the acquisition antenna into a source impedance adapted to the input transistor, and wherein the transformation device can be switched between at least two transformation ratios.