System Overview
R&S
®
ZVA
95Getting Started 1145.1090.62 ─ 13
Option Option Name Functionality
R&S ZVAB-B4 Oven Quartz (OCXO) The R&S ZVA can optionally be equipped with a 10 MHz oven-
controlled crystal oscillator (OCXO) to enhance the frequency
accuracy of the internal generators.
R&S ZVAB-B14 Universal Interface Provides digital control signals for an external part handler.
R&S ZVA<frequency>-B16 Direct Generator/Receiver Access Give direct access to various RF input and output signals, e.g.
to insert external components into the signal path or develop
custom measurements.
R&S ZVA<frequency>-B2x Generator Step Attenuators for
port x = 1,2,3,4
Control the source power, e.g. to protect sensitive DUTs from
excess input levels.
R&S ZVA<frequency>-B3x Receiver Step Attenuators for port
x = 1,2,3,4
Control the received power, e.g. to avoid damage to the ana-
lyzer.
The following sections provide a short introduction to the software options.
3.5.1 Time Domain (R&S ZVAB-K2)
The network analyzer measures and displays complex S-parameters and other quanti-
ties as a function of the frequency. The measurement results can be filtered and math-
ematically transformed in order to obtain the time domain representation, which often
gives a clearer insight into the characteristics of the DUT.
Time domain transforms can be calculated in band pass or low pass mode. For the lat-
ter the analyzer offers the impulse and step response as two alternative transformation
types. A wide selection of windows can be used to optimize the time domain response
and suppress sidelobes due to the finite sweep range. Moreover, it is possible to elimi-
nate unwanted responses by means of a time gate and transform the gated result back
into the frequency domain.
3.5.2 Arbitrary Generator and Receiver Frequencies (R&S ZVA-K4)
Measurements at arbitrary (not necessarily equal) generator and receiver frequencies
provide a wealth of applications, e.g. intermodulation measurements vs. frequency and
power, hot S-parameter measurements.
For intermodulation distortion measurements, the analyzer provides a measurement
and calibration wizard. Intermodulation products and intercept points of order 3, 5, 7, 9
can be measured at the input and at the output of the DUT.
The frequency conversion option also includes mixer and harmonics measurements.
3.5.3 Arbitrary Gen. and Rec. Frequencies (R&S ZVA-K4)
RF mixers convert an RF signal at one frequency into a signal at another frequency.
The frequency that is to be shifted is applied at the RF input and the frequency shifting
signal (from a local oscillator, LO) is applied to the RF mixer's LO port, resulting in an
output signal at the mixer's Intermediate Frequency (IF) port.
Optional R&S ZVA Extensions
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