Rohde & Schwarz ZNB20, Руководство пользователя

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GUI Reference
R&S
®
ZNB/ZNBT
422 User Manual 1173.9163.02 ─ 38
If the "Fixture Simulator" is disabled for the related channel (see "Fixture Simulator"
on page 346), this tab is inactive, i.e. all controls except the "Overview" button are
greyed out.
Overview
See "Overview" on page 412.
Type
Switches between "Deembedding" and "Embedding" network definition.
Port Set
Port sets, defined in the complementary Port Sets Panel dock widget panel. The trans-
formation networks are defined such that the physical analyzer test ports are connec-
ted to the left of the circuit; the DUT ports are on the right side. You can define inde-
pendent transformation networks for all port sets.
Remote command:
The
<ListId>
numeric suffix in the embedding/deembedding commands identifies
the position of the port set in the list of port sets; see e.g.
CALCulate<Ch>:
TRANsform:VNETworks:PPAir:DEEMbedding<ListId>[:STATe]
.
Network
Depending on the size m = 2, 3 or 4 of the selected port set, the graphical list contains
all available 4-, 6- or 8-port deembedding/embedding networks.
Note: For port pairs (m=2) the deembedding/embedding network can be defined either
via lumped element models (in combination with s2p Touchstone files) or via a s4p
Touchstone file (see
Chapter 4.6.2.5, "Port Pair De-/Embedding" , on page 186). For
m=3,4 there are no predefined lumped element models available; the deembedding/
embedding network has to be defined via a s<2m>p Touchstone file.
The symbol selects "no network" and disables de-/embedding for the selected port
set. The "D1" and "D2" networks are defined by means of imported S-parameter data;
see
D1, D2 .
For 4-port networks that are (partly) defined by lumped elements, the lumped element
parameters are displayed below the graphical network list. See
Chapter 4.6.2.4, "Cir-
cuit Models for 4-Port Networks" , on page 185.
Tip:
●
Drag and drop the network symbols in horizontal or vertical direction to switch to
the next symbol. The lumped elements and S-parameter networks ("D1", "D2") are
numbered from top to bottom.
●
Use the Conductance in Embedding Networks switch to change from resistances
in "Capacitor in parallel with resistor" circuit blocks to conductances and vice versa.
Remote command:
CALCulate<Ch>:TRANsform:VNETworks:PPAir:DEEMbedding<ListId>:
TNDefinition
CALCulate<Ch>:TRANsform:VNETworks:PPAir:DEEMbedding<ListId>:
PARameters:C<1|2|3>
CALCulate<Ch>:TRANsform:VNETworks:PPAir:DEEMbedding<ListId>:
PARameters:L<1|2|3>
Offset Embed Softtool