Explicit Formulas for Error Correction in Microwave Measuring Sets with Switching-Dependent Port Mismatches

This paper addresses the problem of correction of systematic measurement errors in computer-operated microwave network analyzers whose measuring sets employ automated switches for establishing the various measurement modes. Two measuring sets with switching-dependent port mismatches are studied, and the associated error models are identified from the hardware configurations. Finally, explicit formulas are given for error correction in these sets.