R&S ZVB - Noise Figure Measurement (R&S ZVAB-K30); Frequency Converting Noise Figure Measurement (R&S ZVA-K31)

R&S
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ZVA / R&S
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ZVB / R&S
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ZVT System Overview
Optional R&S ZVA Extensions
Operating Manual 1145.1084.12 – 30 66
Noise Figure Measurement (R&S ZVAB-K30)
Provides the noise figure of a DUT which operates in its linear range. The noise figure of a device is the
ratio of the output signal-to-noise ratio (SNR) to the input SNR, provided that a thermal noise signal is fed
to the input. It is a measure of the degradation of the SNR caused by the device.
The method of measurement offers several advantages:
 No additional noise source is required.
 The result can be obtained in a single sweep.
 The test setup is as simple as for a basic transmission measurement: The DUT must be
connected only once. Moreover, it is possible to perform S-parameter measurements in parallel to
the noise figure measurement.
Frequency Converting Noise Figure Measurement (R&S ZVA-K31)
Provides the noise figure of a frequency-converting DUT, e.g. a mixer or a system of two mixer stages.
The measurement is performed in analogy to noise figure measurements on non-frequency-converting
DUTs.
Mixer noise figure measurements also require options R&S ZVAB-K30 and R&S ZVA-K4.