R&S
®
ZVL
System Overview
Measured Quantities
Quick Start Guide 1303.6538.62-01
92
,
/
1
1
1
1
0
ii
ii
ii
i
ii
Z
S
S
Z
Y
=
+
=
where i numbers the analyzer/DUT port. The transmission parameters are calculated
according to:
(
)
99
...,
,
1
,
,
,
/
1
2
0
0
0
0
=
=
+
=
j
i
j
i
Z
Z
Z
S
Z
Z
S
Y
ij
j
i
ij
j
i
ij
ij
Example:
Y11 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).
You can also read the converted admittances in a reflection coefficient measurement
from the inverted Smith chart.
