Basic Operation; Required Equipment; Measurement Principle - R&S ZVA-Z75 Manual De Instrucciones

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R&S ZVA-Z75, -Z90, -Z110, -Z140, -Z170, -Z220, -Z325, -Z500

3 Basic Operation

This chapter describes the use of an R&S ZVA vector network analyzer and two R&S
ZVA-Z110 frequency converters for 2-port transmission measurements.
Measurements using other converter types are performed in an analogous way.

3.1 Required Equipment

Measurements with Frequency Converters can be carried out with the following equip-
ment:
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Vector network analyzer (NWA) R&S ZVA or R&S ZVT with an upper frequency
limit of 20 GHz or higher (R&S ZVT 20, R&S ZVA 24, R&S ZVA 40 ...).
The required firmware version depends on the frequency converter model:
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–
–
–
–
–
–
–
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Two NWA ports per Frequency Converter port.
Alternatively: One NWA port per Frequency Converter plus a common external
generator for the LO signals. The R&S SMF100A signal generator with suitable
options is recommended.
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N Frequency Converters for an N-port measurement
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Option R&S ZVA<n>-B16, "Direct Generator/Receiver Access" at each port
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Option R&S ZVA-K8, "Converter Control"
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a suitable set of calibration standards

3.2 Measurement Principle

The frequency converters use frequency multipliers to transform the RF source signal
from one of the network analyzer ports into a high-frequency stimulus signal. A second
signal (Local Oscillator, LO) is used for down-conversion of the reference and mea-
surement channels. The LO signal can be provided either by a second analyzer port or
by an external generator.
The measurement involves the following steps:
1. Selection of the converter and test setup, activation of the converter mode
Getting Started 1307.7039.62 ─ 11
R&S ZVA-Z75: at least version V2.47
R&S ZVA-Z90: at least version V3.30
R&S ZVA-Z110: at least version V2.20
R&S ZVA-Z140: at least version V2.71
R&S ZVA-Z170: at least version V2.71
R&S ZVA-Z220: at least version V2.72
R&S ZVA-Z325: at least version V2.45
R&S ZVA-Z500: at least version V2.80
Basic Operation
Measurement Principle
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