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Concepts and Features
R&S
®
ZNA
131
User Manual 1178.6462.02 ─ 12
Note
that when reimporting this type of file into standard applications (including the
R&S
ZNA itself), the reference resistance from the Touchstone option line is used
and the impedance system underlying the data is not interpreted correctly.
Example: Renormalization comments
!The following Port Impedance Renormalization has been used when saving the data.
!PortZ Port1:50+j0 Port2:70+j0
!Note: The Port Impedances differ from the reference impedance of this file.
! While reading the file the reference impedance value of the option line above
! is always used.
Touchstone files cannot be used to export mathematical traces.
5.4.2.2
ASCII (*.csv) Files
An ASCII file contains a header and the actual trace data:
freq;reTrc1_S21;imTrc1_S21;reMem2[Trc1]_S21;imMem2[Trc1]_S21;
300000.000000;0.000000;0.000000;0.000000;0.000000;
40499497.487437;0.000000;0.000000;0.000000;0.000000;
80698994.974874;0.494927;-0.065174;0.500833;-0.074866;
120898492.462312;0.497959;-0.111724;0.488029;-0.107375;
...
The header consists of the following data elements:
●
<Stimulus> stimulus variable: freq for Frequency sweep, power for Power sweep,
time for Time sweep, trigger for CW Mode sweep.
●
<reTrace1> first response value of first trace: re<Trace_Name>,
mag<Trace_Name> or db<Trace_Name> for output format Re/Im, lin. Mag-Phase
or dB Mag-Phase, respectively. The data format for export files can be selected in
the Export Data dialog.
●
<imTrace1> second response value of first trace: im<Trace_Name> for output for-
mat Re/Im, ang<Trace_Name> for output formats lin. Mag-Phase or dB Mag-
Phase. The data format for export files can be selected in the Export Data dialog.
●
<reTrace2> first response value of second trace: re<Trace_Name>,
mag<Trace_Name> or db<Trace_Name> for output format Re/Im, lin. Mag-Phase
or dB Mag-Phase, respectively. The data format for export files can be selected in
the Export Data dialog.
●
<imTrace2>... second response value of second trace: im<Trace_Name> for output
format Re/Im, ang<Trace_Name> for output formats lin. Mag-Phase or dB Mag-
Phase. The data format for export files can be selected in the Export Data dialog.
first response value of second trace. HZ / KHZ / MHZ / GHZ allowed for imported
files. The analyzer always uses HZ for exported data. second response value of
first trace: im<Trace_Name> for output format Re/Im, ang<Trace_Name> for output
Operations on Traces