Agilent Technologies 8753ET User Manual page 390

Operating Concepts
Measurement Calibration
Enhanced Response Calibration Error Model
Enhanced response calibration uses the same error model as the forward configuration
portion of Figure 7-38. In the response portion, the source and load match effects are
fully-accounted for giving the same accuracy to the forward tracking term (E ) as the
TF
two-port calibration. During the measurement, the enhanced response calibration
performs a correction which is mathematically the same as setting the values of E , E ,
LF LR
E , E , E to zero (0) and the values of E and E to one (1) in the equations for S11
SR XR DR RR TR
and S21 shown in Figure 7-39
Figure 7-39 Full Two-Port Error Model Equations
7-52