R&S ZVB - Waveguide Calibration Using Kit R&S ZV-WR10

R&S
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ZVA / R&S
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ZVB / R&S
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ZVT Measurement Examples
Calibration
Operating Manual 1145.1084.12 – 30 77
4. Since the NIST Multiline TRL method produces an accurate result for the propagation constant it
is possible to arbitrarily shift the reference plane. You can leave it at its default position (connector
plane) or move it towards the DUT (positive values) or towards the connector (negative values) to
meet your measurement requirements.
5. Click Apply to perform the calibration.
As with all other calibrations you can store the results to the Calibration Pool for later use. To do so click
Channel – Calibration – Cal Manager to open the Calibration Manager dialog.
Waveguide Calibration using Kit R&S ZV-WR10
The waveguide calibration kit R&S ZV-WR10 allows to calibrate network analyzers for test setups
involving frequency converters, in particular R&S ZVA-Z110.
Accuracy considerations
 Thermal fluctuations cause linear expansion of the waveguide components and result in phase
drift. An environment with a stable temperature within the range stated in the data sheet is a
prerequisite for accurate measurements.
 A power calibration must be performed previous to system error correction. Refer to the
documentation of your frequency converter for instructions.
 If you readjust the output power of the frequency converter (using the knurled knob at the top of
the converter) an already performed system error correction is no longer valid. For that reason
adjust the output power of the frequency converter before system error correction.
TOSM Calibration
The following example reports a TOSM calibration for a four port R&S ZVA analyzer which is connected to
two frequency converters; see Connecting the Converter. It is suitable for transmission and reflection
measurements on two-port waveguide DUTs in the frequency range of the converters.
The calibration procedure using the analyzer’s “Calibration Wizard” is straightforward (for details refer to
the analyzer help system, section “Guided Calibration”):
1. Activate the Frequency Converter Mode (“System” > “System Config…” > “Frequency Converter”)
and connect the two converters.
2. Click “Channel” > “Start Cal” > “Two Port P1 P2” > “TOSM”.
The calibration kit R&S ZV-WR10 is preinstalled. It is displayed in the “Select Physical VNA Test Port
Connector(s)” dialog, together with the appropriate connector type.