Calibration Factor And Reflection Coefficient - Agilent Technologies U2000H Operating And Service Manual

Calibration Factor and Reflection Coefficient

The Calibration Factor (CF) corrects the frequency response of the sensor.
The Reflection Coefficient (Rho, or ρ) relates to the SWR based on the
following formula:
Maximum uncertainties of the CF data are listed in the following tables.
As the U2000 Series USB power sensors have two independent measurement
paths (high and low power paths), there is only one set of CF data used for
both high and low power paths for each sensor. The uncertainty analysis for
the calibration of the sensors was done in accordance with the ISO Guide. The
uncertainty data reported on the calibration certificate is the expanded
uncertainty with a 95% confidence level and a coverage factor of two.
U2000 Series Operating and Service Guide
ρ
1 +
SWR = ----------- -
ρ
1 –
Specifications and Characteristics 3
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