Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 186 / 813

Trace Menu R&S
®
ZVA/ZVB/ZVT
1145.1084.12 4.24 E-6
in a short circuit (V = 0). Short-circuit Y-parameters can be selected in the More Y-Parameters
dialog.
Mixed mode measurements are available for both types of admittance parameters.
•
Y <– S11, Y <– S12, Y <– S21, Y <– S22 select the forward or reverse matched-circuit
admittances of a 2-port DUT.
•
More Admittances ... opens a dialog to define and select short-circuit admittances for more ports
or mixed mode measurements.
Y <– S11, Y <– S12, Y <– S21, Y <– S22
Select the 2-port converted matched-circuit admittance parameters. The parameters describe the
admittances of a 2-port DUT, obtained in forward and reverse transmission and reflection
measurements:
•
Y
11
is the input admittance of a 2-port DUT that is terminated at its output with the reference
impedance Z
0
(matched -circuit admittance measured in a forward reflection measurement).
•
Y
22
is the output admittance of a 2-port DUT that is terminated at its input with the reference
impedance Z
0
(matched -circuit admittance measured in a reverse reflection measurement).
•
Y
12
and Y
21
denote the forward and reverse transfer admittances, respectively.
The analyzer can also provide matched-circuit admittances for more drive ports or balanced port
configurations; see More Admittances.
Use the More Y-Parameters dialog to measure short-circuit Y-parameters including the transfer
parameters. Use the Inverted Smith chart to obtain an alternative, graphical representation of the
converted admittances in a reflection measurement.
Remote
control:
CALCulate<Ch>:PARameter:MEASure "<Trace_Name>", "SY11" | "SY12"
| "SY21" | "SY22"
[SENSe<Ch/Tr>:]FUNCtion[:ON] "...:POWer:Y<11 | 12 | 21 | 22>"
Create new trace and select name and measurement parameter:
CALCulate<Ch>:PARameter:SDEFine "<Trace_Name>", "SY11" | "SY12"
| "SY21" | "SY22"