Agilent Technologies Figure 7-3 S-Parameters of a Two-Port Device

7-21
Operating Concepts
S-Parameters
Figure 7-3 S-Parameters of a Two-Port Device
S-parameters are exactly equivalent to these more common description terms, requiring
only that the measurements be taken with all test device ports properly terminated.
S-Parameter Definition Test Set Description Direction
S11 b1/a1a2 = 0 Input reflection coefficient FWD
S21 b2/a1a2 = 0 Forward gain FWD
S12 b1/a2a1 = 0 Reverse Gain REV
S22 b2/a2a1 = 0 Output reflection coefficient REV