Concepts and features
R&S
®
ZNA
198
User Manual 1178.6462.02 ─ 20
For an overview of measurements and recommended calibration methods refer to
.
4.5.7.1
Calibration procedure
A SMARTerCal is a fully menu-guided process which is performed like a regular sys-
tem error correction. The calibration wizard defines the calibrated ports and the calibra-
tion type; it also initiates the calibration sweeps for all calibration standards. The cali-
bration sweep for the external power meter is performed in analogy to a sweep for a
one-port calibration standard. However, the analyzer uses the "Reference Receiver Cal
Power" setting from the scalar power calibration. The order of the system error correc-
tion and power calibration sweeps is arbitrary; ensure that you always connect the
proper equipment.
The R&S
ZNA also supports a SMARTerCal based on the calibration units. The cali-
bration units provide the n-port system error correction data (TOSM or UOSM); a sub-
sequent power calibration sweep completes the calibration.
4.5.7.2
Calibration types
Except for "Adapter Removal", the names of the SMARTerCal calibration types consist
of a prefix "P" (indicating the additional power calibration) plus the system error correc-
tion type. The R&S
ZNA supports the SMARTerCal equivalent of all full n-port system
error corrections; an overview is shown below.
Table 4-15: SMARTerCal calibration types
SMARTerCal Type
Based on ...
Manual calibration
Calibration unit
P-Ref Receiver
(
only)
= reference receiver
(scalar power) calibra-
tion
☑
☐
P-Refl Norm Open
Refl Norm Open
☑
☑
P-Refl Norm Short
Refl Norm Short
☑
☑
P-Refl Norm OSM
OSM
☑
☑
P-Trans Norm
Trans Norm
☑
☑
P-Trans Norm Both
Trans Norm Both
☑
☑
P-One Path Two Ports
One Path Two Ports
☑
☑
PTOSM
TOSM
☑
☑
PUOSM
UOSM
☑
☑
PTRL
TRL
☑
☐
PTOM
TOM
☑
☐
PTSM
TSM
☑
☐
PTRM
TRM
☑
☐
Calibration