R&S ZNB - Page 599

GUI Reference
R&S
®
ZNB/ZNBT
599User Manual 1173.9163.02 ─ 55
Remote command:
CALCulate:FMODel:ISD<Ph_pt>:PORT:SKIP:NONE
CALCulate:FMODel:ISD<Ph_pt>:PORT:SKIP:LEFT
CALCulate:FMODel:ISD<Ph_pt>:PORT:SKIP:RIGHt
Ports to Skip (manual) ← DUT With Fixture
If Ports to Skip is set to "Manually set ports" this allows you to define the ports to be
skipped. Enter the port numbers, separated by blanks (e.g. '1 3 4').
Remote command:
CALCulate:FMODel:ISD<Ph_pt>:PORT:SKIP
Calculations
Some additional parameters that define how the ISD tool calculates its output.
Enforce Passitivity ← Calculations
If checked (default), the ISD tool enforces passivity and reciprocity for the test coupons
and the test fixture.
Remote command:
CALCulate:FMODel:ISD<Ph_pt>:PASSivity
Trace Coupling ← Calculations
Tells the ISD tool about coupling among lead-in traces
●
"None": no coupling.
The ISD tool optimizes odd- and single-ended insertion losses.
●
"Weak": coupling is extracted even if there are 2 ports enabled on the test coupon
●
"Strong" (default): if the test coupon is a 4-port file, and there are two ports to be
extracted, the ISD tool optimizes odd- and even-mode insertion losses.
The ISD tool automatically reverts to "Weak" if these conditions are not met.
Remote command:
CALCulate:FMODel:ISD<Ph_pt>:TRACe:COUPling
Operation (fast/acc) ← Calculations
Influences the speed of execution and accuracy of the ISD tool.
●
"Accurate" (default): normal execution mode
●
"Fast": reduces the execution time to ~50%
Often this mode can be enabled with only little loss of accuracy.
Remote command:
CALCulate:FMODel:ISD<Ph_pt>:OPERation
Max Freq to Deembed ← Calculations
When the test coupon’s return loss is not less than the insertion loss, the maximum fre-
quency to deembed together with the proper Insertion Loss setting gives the best accu-
racy.
By default, the maximum frequency is set to the maximum frequency the VNA can use.
Remote command:
CALCulate:FMODel:ISD<Ph_pt>:SCALe:FREQuency
Offset Embed Softtool