VNA GUI reference
R&S
®
ZNL/ZNLE
413
User Manual 1178.5966.02 ─ 19
10.7.7
Stability tab
Selects one of the three two port stability factors K, μ
1
or μ
2
as measured quantities. A
typical application of stability factors is to assess the stability of an amplifier. Stability
factors cannot be calculated in balanced port configurations.
Background information
Refer to
Chapter 9.3.7, "Stability factors"
Stability
Selects a
as a measured quantity for the active trace. The stability factor
calculation is based on 2-port reflection
and
transmission S-parameters so that the
input and output port numbers must be different. The pull-down list contains all possi-
ble physical (single-ended) port combinations. For an analyzer with n ports, provides n
* (n
–
1) stability parameters.
Stability parameters are expressed as "K
<out><in>
", "μ1
<out><in>
", and "μ2
<out><in>
", where
<out> and <in> denote the logical output and input port numbers of the DUT.
Remote command:
CALCulate<Ch>:PARameter:MEASure
"<Trace_Name>", "KFAC21" |
"MUF121" | "MUF221" | ...
CALCulate<Ch>:PARameter:SDEFine
"<Trace_Name>", "KFAC21" |
"MUF121" | "MUF221" | ...
μ1 21/μ2 21/K 21
Selects one of the standard 2-port
as a measured quantity for the
active trace. These buttons are enabled if none of the logical ports 1 and 2 is defined
as a balanced port.
Remote command:
CALCulate<Ch>:PARameter:MEASure
"<Trace_Name>", "MUF121" |
"MUF221" | "KFAC21"
CALCulate<Ch>:PARameter:SDEFine
"<Trace_Name>", "MUF121" |
"MUF221" | "KFAC21"
Balanced Ports...
Opens a dialog to define a balanced port configuration.
Meas softtool