公开(公告)号：US20160146920A1

公开(公告)日：2016-05-26

申请号：US14548472

申请日：2014-11-20

Applicant: SIGURD MICROELECTRONICS CORP.

Inventor： CHIEN-HUNG LIN ,  YI-CHENG TSAI ,  CHING-CHENG TIEN ,  CHI-CHUNG LIU

IPC: G01R35/00 ,  G01R27/06

CPC classification number: G01R35/005 ,  G01R27/32

Abstract: An RF parameter calibration method comprises steps: measuring an open-circuit parameter, a short-circuit parameter and a load parameter of an RF parameter circuit of a tested object; respectively substituting measured values of the open-circuit parameter, the short-circuit parameter and the load parameter into a directivity error equation, a signal source matching error equation, and a reflection path error equation to obtain a directivity error, a signal source matching error, and a reflection path error; substituting the directivity error, the signal source matching error and the reflection path error into an RF parameter equation to work out an actual value of an RF parameter; examining whether the actual value of the RF parameter is smaller than a preset dB value; if yes, undertaking calibration; if no, returning to undertake measurements once again. The present invention can replace the expensive standard calibration kit and achieve more precise parameter calibration.

Abstract translation: RF参数校准方法包括以下步骤：测量被测对象的RF参数电路的开路参数，短路参数和负载参数; 分别将开路参数，短路参数和负载参数的测量值代入方向性误差方程，信号源匹配误差方程和反射路径误差方程，以获得方向性误差，信号源匹配误差 ，反射路径误差; 将方向性误差，信号源匹配误差和反射路径误差代入射频参数方程，计算RF参数的实际值; 检查RF参数的实际值是否小于预设dB值; 如果是，进行校准; 如果没有，再次进行测量。 本发明可以替代昂贵的标准校准套件并实现更精确的参数校准。