Rohde & Schwarz 1323.0012.03, User Manual

Page: 380 / 1014

VNA GUI Reference
R&S
®
ZNL/ZNLE
380 User Manual 1178.5966.02 ─ 07
Y/Z-Parameter
Selects an Y-parameter or Z-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 Y-
and Z-parameters.
Y- and Z-parameters are expressed as Y/Z
<out>< in>
, where <out> and <in> denote the
output and input port numbers of the DUT.
Remote command:
CALCulate<Ch>:PARameter:MEASure "<Trace_Name>", "Y11" |
"Z11" ...
CALCulate<Ch>:PARameter:SDEFine "<Trace_Name>", "Y11" |
"Z11" ...
Y11/Y12 /Y21/Y22
Selects one of the 2-port Chapter 8.3.3.2, "Y-Parameters" , on page 222 as a measured
quantity for the active trace. The Y-parameters describe the admittances of a DUT with
output ports terminated in a short circuit (V = 0).
The four 2-port Y-parameters can be interpreted as follows:
●
Y
11
is the input admittance, defined as the ratio of the current I
1
to the voltage V
1
,
measured at port 1 (forward measurement with output terminated in a short circuit,
V
2
= 0).
●
Y
21
is the forward transfer admittance, defined as the ratio of the current I
2
to the
voltage V
1
(forward measurement with output terminated in a short circuit, V
2
= 0).
●
Y
12
is the reverse transfer admittance, defined as the ratio of the current I
1
to the
voltage V
2
(reverse measurement with input terminated in a short circuit, V
1
= 0).
●
Y
22
is the output admittance, defined as the ratio of the current I
2
to the voltage V
2
,
measured at port 2 (reverse measurement with input terminated in a short circuit,
V
1
= 0).
Remote command:
CALCulate<Ch>:PARameter:MEASure "<Trace_Name>", "Y11" | "Y12" |
"Y21" | "Y22"
CALCulate<Ch>:PARameter:SDEFine "<Trace_Name>", "Y11" | "Y12" |
"Y21" | "Y22"
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