基于VBA的射频网络分析仪自动校准系统

Automatic Calibration System for RF Network Analyzer Based on VBA

目前,我国多数企业对网络分析仪的校准工作仍以手工操作为主,针对这一情况,以射频网络分析仪E5070B为平台,设计了一种基于VBA开发环境的自动校准系统;该系统采用二端口全校准作为校准方式,通过可编程仪器标准命令实现了网络分析仪校准的自动控制,特别是内置虚拟仪器技术的使用使得仪器的响应速度和校准精度都有了明显提高,企业试用结果显示,由于其所特有的易用性和高效性,因而该系统的开发具有一定的理论意义和实用价值。

Calibration of network analyzer is conducted by hands in most domestic enterprises. An automatic calibration system is devel oped on the base of VBA （Visual Basic for Application） in ES070B, a new type of RF network analyzer. Full 2 port calibration is used in the system. Automatic control of the calibration for the RF network analyzer is achieved through SCPI （Standard Commands for Programmable Instruments） programming. Above all, the application of internal virtual instrument technology has greatly increased the response speed and calibration accuracy. The system, with its excellent applicability and effectiveness, can be regarded as a reference for practice and theoretical study.