R&S ZVL
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Operating Manual 1303.6580.32-06
234
•
Transformation Network
contains all available 2-port networks (see below). Networks are either
defined by lumped elements or by means of imported S-parameter data. The active network
appears in inverse colors. The element parameters (C, R, L) for the selected network are
displayed on the right side.
•
Read Data From File...
is enabled as long as the
2-Port Data
network is active. This network is
defined by its S-parameters stored in a two-port Touchstone file (*.s2p). No additional parameters
are required.
•
Set to Ideal Through
is enabled as long as the
2-Port Data
network is active. An imported S-
parameter set is replaced by the S-parameters of an ideal through connection, which eliminates
the transformation network.
Circuit models for 2-port networks
The lumped element 2-port transformation networks for (de-)embedding consist of the following two basic
circuit blocks:
•
A capacitor C connected in parallel with a resistor.
•
An inductor L connected in series with a resistor.
The 2-port transformation networks comprise all possible combinations of 2 basic blocks, where one block
represents a serial, the other a shunt element. In the default setting the resistors are not effective, since
the serial Rs are set to 0
V
, the shunt Rs are set to 10 M
V
.
•
The first network is defined by its S-parameters stored in an imported two-port Touchstone file
(*.s2p). No additional parameters are required.
The following networks are composed of a serial C or L (as seen from the test port), followed by a shunt C
or L. They are named
Serial C, Shunt C / Serial C, Shunt L / Serial L, Shunt C / Serial L, Shunt L.
•
The following networks are composed of a shunt C or L (as seen from the analyzer port), followed
by a serial C or L. They are named
Shunt C, Serial C / Shunt C, Serial L / Shunt L, Serial C /
Shunt L, Serial L.
