Noise figure measurements with vector correction (S97029A)
P937xA Series P500xA Series
This software application enables high-accuracy noise figure and noise-power measurements of
amplifiers utilizing Keysight’s unique vector-source-correction technique that uses a source-impedance
tuner to remove the effects of imperfect system-source match. This approach yields accuracy that
surpasses that provided by the Y-factor method and other cold-source implementations, especially for in-
fixture, on-wafer, and automated-test environments. A scalar-calibrated method is also available that
offers less accuracy but is faster and does not require an impedance tuner.
The instrument’s standard receivers are used for noise figure measurements with the S97029A. An
external preamplifier and filter(s) is required for devices with < 30 dB of excess noise (gain plus noise
figure in dB). S97029A controls Keysight N469x Series
1
ECal modules configured as impedance tuners
for use with the USB VNA.
For calibration, a standard mechanical cal kit or ECal module is required for the S-parameter portion of
the cal (an ECal used as a tuner cannot be shared for calibration). To calibrate a standard receiver for
noise figure measurements, a power meter is required. All calibration accessories must be ordered
separately.
Scalar mixer/converter measurements (S97082A)
P937xA Series P500xA Series
With a simple setup and calibration, this application delivers the highest accuracy for scalar conversion-
loss/gain measurements by combining one-port and power-meter calibrations to remove mismatch errors.
S97082A provides an intuitive and easy-to-use user interface for setting up mixer and converter
measurements, with single or dual conversion stages. It can control external signal generators for use as
LO signals. Supported external sources include the Keysight ESG, PSG, EXG, and MXG Series, as well
as other SCPI-controlled signal generators.
S97082A is compatible with S97084A, which enables measurements of converters with internal LOs.
Embedded LO capability (S97084A)
P937xA Series P500xA Series
This application tunes the analyzer’s receivers to the output frequency of the converter under test without
the need for access to internal LOs or a common reference signal. S97084A is intended to work with
S97082A measurement applications.
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