Na Mode Settings; About S-Parameters - Keysight A Series User Manual

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NA (Network Analyzer) Mode

NA Mode Settings

Select NA Mode before making any setting in this chapter.

How to select NA Mode

1. Press Mode.

S-parameters (scattering parameters) are used to describe the way a device

modifies a signal. The FieldFox can measure four S-parameters. The syntax

for each parameter is described by the following:

S22 | S11 (out | in)

out = FieldFox receiver port

in = FieldFox source port

The FieldFox automatically switches the internal source and receivers to make

both forward and reverse measurements. Therefore, the FieldFox can measure

all four S-parameters with a single connection.

When the source comes from port 1, the measurement is said to be in the

forward direction.

When the source comes from port 2, the measurement is said to be in the

reverse direction.

S11 and S22 reflection measurements are used to measure the amount of

reflections off the corresponding DUT port. Low reflections means there is a

good impedance match between the source and DUT.

Keysight N9927-90020 User's Guide

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