Measurement
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• We recommend that you use the same products of calibration
mixers, IF filters and cables between the balanced ports to
which each calibration mixer (with IF filter) is connected.
You should keep the following electrical lengths the same
between the two ports to which the calibration mixer is
connected as much as possible - the electrical length from the
external signal source output port (a) to the extended
calibration plane (b), and the electrical length from the
calibration plane (c) to the extended calibration plane (b). Large
electrical length differences between the two ports to which the
calibration mixer is connected could raise 180 degrees phase
value error between the two IF ports even though the Balanced
Mixer Calibration Macro is executed. You can verify it by
swapping the IF cable connections with each other.
Executing Characterization
1. Characterizing Calibration Mixer (with IF filter)
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