Rohde & Schwarz R&S ZNA Series - Page 351

GUI reference
R&S
®
ZNA
351User Manual 1178.6462.02 ─ 29
This dialog can only be opened, if a balanced and two single-ended logical ports are
configured in the Balanced Ports dialog.
●
The Logical Port on the left represents the balanced test port: any (active) bal-
anced logical port can be selected
●
Physical Port 1 and Physical Port 2 represent the two single-ended test ports: any
two (active) single-ended logical ports can be selected
●
The part below allows you to select the signal direction and hence the "Imbalance
Result" to be calculated.
DUT
Balanced
port
Balanced
port
Log.
NWA
port
Physical port c
Logical ports j,k
(single-ended)
Physical port d
Logical port i
(balanced)
Physical port a
Physical port b
Imbalance 1 / Imbalance 2
Imbalance 1 selects the balanced logical port i as the input, the single-ended logical
ports j and k as the output and calculates the following imbalance parameter:
Imb
jk-i
= –(S
ca
– S
da
)/(S
cb
– S
db
)
Imbalance 2 selects the balanced logical port i as the output, the single-ended logical
ports j and k as the input and calculates the following imbalance parameter:
Imb
i-jk
= –(S
ac
– S
ad
)/(S
bc
– S
bd
)
Meas softtool