GUI reference
R&S
®
ZNB/ZNBT
519
User Manual 1173.9163.02 ─ 62
The offset parameters depend on whether the circuit model is defined as "Keysight
Model" (see
Chapter 5.11.2.1, "Cal Connector Types dialog"
●
In a "Keysight Model", a calibration standard is characterized by its "Delay" (in s),
its characteristic impedance "Z0" (in Ω) and its "Offset Loss" (in GΩ/s).
●
Otherwise the standard is characterized by the R&S
ZVR-compatible parameters
"Electrical Length" (in m), "Char. Imp." (in Ω) and "Loss" (in dB/sqrt(GHz)). The loss
is zero and not editable as long as the electrical length is zero.
Both parameter sets are closely related. The "Electrical Length" is proportional to the
"Delay"; "Z0" corresponds to the "Char. Imp.". Moreover the analyzer converts a Key-
sight-type "Offset Loss" into a R&S
ZVR-type "Loss" and vice versa using the "Rel.
Permittivity εr" for the selected connector type.
See also description of the offset parameters in
Chapter 4.5.2.1, "Calibration standard
Remote command:
[SENSe:]CORRection:CKIT:<StandardType>
Load Parameters
The entries in the lower part of the "View / Modify Cal Kit Standards" dialog specify the
load parameters for a particular calibration standard describing its terminal impedance.
The circuit model for the load consists of capacitance C which is connected in parallel
to an inductance L and a resistance R, both connected in series.
●
R is the constant resistive contribution. It is possible to select:
–
"Open" for
∞
Ω (so that the inductance coefficients are irrelevant)
–
"Short" for 0 Ω
–
"Match" for the reference impedance of the current connector type
–
any resistance "R"
●
The fringing capacitance C and the residual inductance L are both assumed to be
frequency-dependent and approximated by the first four terms of the Taylor series
around f = 0 Hz.
See also description of the load parameters for the different standard types in
ter 4.5.2.1, "Calibration standard types"
Remote command:
[SENSe:]CORRection:CKIT:<StandardType>
5.11.2.3
Characterize Cal Unit dialog
The "Characterize Cal Unit" dialog displays the properties of the connected cal units,
provides control elements for characterization file management, and starts the charac-
terization wizard.
Access:
Channel – [Cal] > "Cal Devices" > "Characterize Cal Unit..."
Background information
Refer to
Chapter 4.5.5.3, "Characterization of calibration units"
Cal softtool
