Agilent Technologies 8753ET User Manual page 389

Operating Concepts
Measurement Calibration
Figure 7-38 Full Two-Port Error Model
A full two-port error model equations for all four S-parameters of a two-port device is
shown in Figure 7-39. Note that the mathematics for this comprehensive model use all
forward and reverse error terms and measured values. Thus, to perform full
error-correction for any one parameter, all four S-parameters must be measured.
Applications of these error models are provided in the calibration procedures described in
Chapter 5 , "Optimizing Measurement Results."
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