Rohde & Schwarz R&S ZNA Series - Page 89

Getting Started
R&S
®
ZNA
89User Manual 1178.6462.02 ─ 29
Left vs. right model variant
The diplexer R&S ZVA-ZD110 is available in a left variant and a right variant.
●
The left variant (Var 12) is designed for the left side of the standard arrangement
with two external test sets. Its connector panel is located on the left side of the
diplexer, i.e. it is oriented towards the VNA.
The RF High Out and H/L SWITCH switch connectors are located on the top left
and top right, respectively.
●
The right diplexer variant (Var 18) is designed for the right side of the standard
arrangement with two test sets. Its connector panel is located on the right of the
diplexer, i.e. it is oriented towards the VNA.
1 1
2 2
3 3
6 6
4 4
5
Figure 3-15: Left vs. right model variant (rear view)
Left = Left variant (Var 12)
Right = Right variant (Var 18)
1 = Connector panel
2 = RF High Out connector
3 = Waveguide connector
4 = H/L SWITCH
5 = Fuse panel
6 = Power supply connector
RF High Out, waveguide, and power supply connector can also be seen and are
described below Figure 3-14.
Standard arrangement with 4 external test sets
With four external test sets, using 2 times the left diplexer variant (Var 12) on the left
side would be impractical. If their 1 mm connectors must be placed close to each other,
e.g. for on-wafer probing, the RF cables connected to the connector panel of the outer
test set would have to be bent unduly to bypass the inner test set. Same problem with
2 times Var 18 (right) on the right side.
For this reason, the R&S ZNA67EXT with four external test sets uses a Var 18 diplexer
for the outer left test set, and a Var 12 diplexer for the outer right set.
Getting started with R&S
ZNA67EXT