Rohde & Schwarz R&S ZVA 8 - Page 243

R&S
®
ZVA/ZVB/ZVT Trace Menu
1145.1084.12 4.81 E-6
Export Complex Data corresponds to a standard Save As... dialog with an additional panel to specify
the export Options. The Dec. Separator export option is not available for Mathlab (*.dat) file export.
Touchstone files *.s<n>p contain either a single trace (*.s1p) or the complete set of S-parameters of an
n-port and use the point as Dec. Separator; see Trace File Formats; they are only available if complex
trace values are exported (trace formats Polar, Smith, Inverted Smith). The following output options
also depend on the trace format.
• Output Format selects the format for the exported trace data. In the Re/Im format, each
complex measurement value is represented by its real and imaginary part. It is also possible to
store the linear magnitude and phase (lin Mag-Phase) or dB magnitude and phase (dB Mag-
Phase) of each value.
• Content selects only the Active Trace or All Traces of (the) Active Channel (including all data
and memory traces) for data export to an ASCII (*csv) file.
• Dec. Separator selects either the Point or the Comma (if needed to process the exported data
with an external application) as a separator for decimal numbers exported to an ASCII (*.csv)
file.
• Ask to Overwrite activates a message box to be displayed before an older trace file with the
same file name and directory is overwritten.
Selecting an appropriate file format
Use a Touchstone file format to export a fixed number of S-parameter data traces to a file that can be
evaluated with applications such as Agilent's Microwave Design System (MDS) and Advanced Design
System (ADS). The data must be acquired in a frequency sweep.
• *.s1p files are intended for a 1-port S-parameter (the reflection coefficient S11) but can be used
as well to store any single S-parameter. Note that any S-parameter will be labeled S11 in the
file and in the Select Parameter box.
• *.s<n>p files (<n> = 2, 3,, 4) are intended for a complete set of <n>-port S-parameters. Data
export fails if the active channel does not contain the full set of <n>
2
traces.