| 发明名称 | Phase shifter and power amplifier and magnetic resonance imaging apparatus | ||
| 摘要 | A phase shifter is provided. The phase shifter includes a first phase shifter that is continuously adjustable within a range of 0 degrees to 90 degrees, two 4-way switches each configured to selectively switch on one of a capacitance, an inductance, an open circuit, and a short circuit under control of a control voltage, and a bridge. A first input end and a first output end of said bridge are respectively connected to a first 4-way switch of the two 4-way switches. A second input end of said bridge is connected to an output end of said first phase shifter or a second output end of said bridge is connected to an input end of said first phase shifter. | ||
| 申请公布号 | US8760165(B2) | 申请公布日期 | 2014.06.24 |
| 申请号 | US201113116718 | 申请日期 | 2011.05.26 |
| 申请人 | GE Medical Systems Global Technology Company, LLC | 发明人 | Xing Haoyang;Liu Yu;Liao Anmou;Zhao Chenxing |
| 分类号 | G01R33/36;H03H11/20;H03H11/22;H03F1/32 | 主分类号 | G01R33/36 |
| 代理机构 | Armstrong Teasdale LLP | 代理人 | Armstrong Teasdale LLP |
| 主权项 | 1. A phase shifter that is compatible with a magnetic resonance imaging apparatus, the phase shifter comprising: a first phase shifter that is continuously adjustable within a range of 0 degrees to 90 degrees; two ganged 4-way switches, each configured to selectively switch between and actively switch on, one of a capacitance, an inductance, an open circuit, and a short circuit under control of a digital control voltage; and a bridge, wherein: a first input end and a first output end of said bridge are respectively connected to one 4-way switch of the two ganged 4-way switches; andone of a second input end of said bridge is connected to an output end of said first phase shifter and a second output end of said bridge is connected to an input end of said first phase shifter. | ||
| 地址 | Waukesha WI US | ||