R&S ZNB Series User Manual page 664

®
R&S ZNB/ZNBT
Sweep Frequency
Defines the sweep range of the Delta-L channel. The entered "Minimum" and "Maxi-
mum" values are set as
using "OK". Furthermore, the VNA collects data for the LPI computation a the "Mini-
mum" and "Maximum" frequencies (in addition to the other specified
on page 663).
The default "Minimum" is the standard Delta-L start frequency of 10 MHz. The default
"Maximum" is either 20 GHz or the instrument's maximum frequency, whichever is
smaller. Buttons are available to set "Maximum" to the standard Delta-L stop frequen-
cies of 20 GHz and 40 GHz (if within the instrument's frequency range), and to the
instrument's maximum frequency.
If you set the "Minimum" or "Maximum" to a non-standard value, a popup indicates that
the Delta-L measurement possibly does not provide accurate results.
Remote command:
CALCulate:FMODel:DELT:SWEep:FREQuency:MINimum
CALCulate:FMODel:DELT:SWEep:FREQuency:MAXimum
Trace
On OK, the VNA deletes the existing traces and sets up the traces whose measure-
ment is required for the selected Delta-L Method.
If "Use Recommended Trace Configuration" is checked, then each of the new
traces is displayed in a separate diagram. Otherwise, the VNA places all traces in a
single diagram.
If the
dances" adds the TDR-based converted impedance traces to the recommended trace
configuration.
Remote command:
CALCulate:FMODel:DELT:TCONfig
CALCulate:FMODel:DELT:TDR
OK
"OK" applies the Delta-L settings and starts the
5.13.12.2 Delta-L measurement
When the Delta-L measurement starts, the analyzer firmware prepares the Delta-L
measurement channel, populates the diagram area with the required measurement
traces, and opens the
Delta-L Measurement dock widget
The "Delta-L Measurement" dock widget is where coupon measurements are per-
formed and/or corresponding touchstone files are selected.
The
ended or balanced can be measured. "No ports available!" in the dock widget and "No
Trace" in the diagram area indicates that no ports of the selected type are configured.
User Manual 1173.9163.02 ─ 62
start and stop frequency
Time domain analysis
Delta-L Measurement dock
Measurements setting in the "Delta-L Settings" dialog determines whether single-
when the Delta-L settings are applied
option R&S ZNB/ZNBT-K2 is installed, "Show TDR Impe-
Delta-L
widget.
GUI reference
Offset Embed softtool
"Frequencies"
measurement.
664