公开(公告)号：US07161358B1

公开(公告)日：2007-01-09

申请号：US11374502

申请日：2006-03-13

申请人： Hassan Tanbakuchi ,  Loren Cole Betts ,  David Blackham

发明人： Hassan Tanbakuchi ,  Loren Cole Betts ,  David Blackham

IPC分类号： G01R27/02

CPC分类号： G01R27/04

摘要： An impedance analyzer includes a reference signal, a first converter a first coupler, a second converter, a second coupler, a modification circuit, a reference signal detector, and a reflected signal detector. The first coupler couples the reference signal to the first converter. The first converter produces a reference intermediate frequency signal. The second coupler couples a reflected signal to the second converter. The second converter produces a reflected intermediate frequency signal. A reflection coefficient for a device under test is determined by using a reflected value detected by the reflected signal detector and a reference value detected by the reference signal detector. In a first operating mode of the impedance analyzer, the reflected intermediate frequency signal is forwarded directly to the reflected signal detector. In a second operating mode of the impedance analyzer, the modification circuit operates on the reference intermediate frequency signal to produce an adjustment signal that is combined with the reflected intermediate frequency signal before a resulting signal is forwarded to the reflected signal detector.

摘要翻译： 阻抗分析器包括参考信号，第一转换器，第一耦合器，第二转换器，第二耦合器，修改电路，参考信号检测器和反射信号检测器。 第一耦合器将参考信号耦合到第一转换器。 第一转换器产生参考中频信号。 第二耦合器将反射信号耦合到第二转换器。 第二转换器产生反射中频信号。 通过使用由反射信号检测器检测的反射值和由参考信号检测器检测的参考值来确定被测器件的反射系数。 在阻抗分析仪的第一操作模式中，反射的中频信号被直接转发到反射信号检测器。 在阻抗分析仪的第二操作模式中，修改电路对参考中频信号进行操作，以产生与所反射的中频信号组合的调整信号，然后将结果信号转发到反射信号检测器。