R&S ZNL Series - Page 408

VNA GUI reference
R&S
®
ZNL/ZNLE
408User Manual 1178.5966.02 ─ 20
Z←S<out><in> selector
Selects a converted impedance parameter as a measured quantity for the active trace.
For an n-port vector network analyzer, the pull-down list provides the full set of n
2
impedance parameters.
Converted impedance parameters are expressed as Z←S
<out>< in>
, where <out> and
<in> denote the output and input port numbers of the DUT.
Remote command:
CALCulate<Ch>:PARameter:MEASure "<Trace_Name>", "Z-S11" |
"Z-S12" ...
CALCulate<Ch>:PARameter:SDEFine "<Trace_Name>", "Z-S11" |
"Z-S22" | ...
Z←S<out><in> softkeys
Selects the 2-port converted impedance parameters. The parameters describe the
impedances of a 2-port DUT, obtained in forward and reverse transmission and reflec-
tion measurements:
●
Z
11
is the input impedance at port 1 of a 2-port DUT that is terminated at port 2 with
the reference impedance Z
0
(matched-circuit impedance measured in a forward
reflection measurement).
●
Z
22
is the input impedance at port 2 of a 2-port DUT that is terminated at port 1 with
the reference impedance Z
0
(matched-circuit impedance measured in a reverse
reflection measurement).
●
Z
12
and Z
21
denote the forward and reverse converted transfer impedances,
respectively.
Use the Smith chart to obtain an alternative, graphical representation of the converted
impedances in a reflection measurement.
Tip: Use the "Y- Z-Params" tab to measure Z-parameters including the transfer param-
eters.
Remote command:
CALCulate<Ch>:PARameter:MEASure "<Trace_Name>", "Z-S11" |
"Z-S12" | "Z-S21" | "Z-S22"
CALCulate<Ch>:PARameter:SDEFine "<Trace_Name>", "Z-S11" |
"Z-S12" | "Z-S21" | "Z-S22"
Meas softtool