Concepts and features
R&S
®
ZNA
201
User Manual 1178.6462.02 ─ 20
Joins calibrations of the same port set, but with different overlapping frequency
ranges. The resulting calibration is of the same kind and applies to the same port
set, but covers the joint frequency range.
●
Port set join
Joins calibrations with the same frequency range, but with different port sets. The
resulting calibration is of the same kind and covers the same frequency rang, but
applies to the joint port set
The outcome is to expected to be a Calibrations of the same kind, with the same
frequency range, and the with joint port sets. Any calibrations on additional fre-
quency axes in the second input calibration will be copied to the output calibration
(see requirement 15).
4.6
Offset parameters and de-/embedding
The R&S
ZNA functionality described in this section complements the calibration, com-
pensating for the effect of known transmission lines or matching networks between the
calibrated reference plane and the DUT.
4.6.1
Offset parameters
Offset parameters compensate for the known length and loss of a (non-dispersive and
perfectly matched) transmission line between the calibrated reference plane and the
DUT.
The analyzer can also auto-determine length and loss parameters, assuming that the
actual values should minimize the group delay and loss across a configurable fre-
quency range.
4.6.1.1
Definition of offset parameters
The
delay
is the propagation time of a wave traveling through the transmission line.
The
electrical length
is equal to the delay times the speed of light in the vacuum. It is a
measure for the length of the transmission line between the standard and the actual
calibration plane. For a line with permittivity ε
r
and
mechanical length
L
mech
the delay
and the electrical length are calculated as follows:
Offset parameters and de-/embedding
