R&S 1307.7000.03, Быстрый старт

Страница: 22 / 24

Basic Operation
R&S
®
ZVA-Z75, -Z90, -Z110, -Z140, -Z170, -Z220, -Z325, -Z500
22 Quick Start Guide 1307.7039.62 ─ 10
After the power calibration procedure a system error correction is recommended. Due
to the physical properties of the mm-waves and the waveguides, measurements with
frequency converters require a special calibration kit for system error correction.
Rohde & Schwarz offers kits for this purpose:
●
Calibration kit R&S ZV-WR15, for converter R&S ZVA-Z75
●
Calibration kit R&S ZV-WR12, for converter R&S ZVA-Z90
●
Calibration kit R&S ZV-WR10, for converter R&S ZVA-Z110
●
Calibration kit R&S ZV-WR08, for converter R&S ZVA-Z140
●
Calibration kit R&S ZV-WR06, for converter R&S ZVA-Z170
●
Calibration kit R&S ZV-WR05, for converter R&S ZVA-Z220
●
Calibration kit R&S ZV-WR03, for converter R&S ZVA-Z325
●
Calibration kit R&S ZV-WR02, for converter R&S ZVA-Z500
The standards in the calibration kit allow all one-port and two-port calibration types
supported by the network analyzer except TNA. Refer to the documentation of the cali-
bration kit or the help system of your network analyzer for details.
3.6 Measurement
After power calibration and system error correction, the mm-wave measurement can
be performed like any other network analyzer measurement. The "Port Configuration"
settings (together with the "Stimulus" settings), determine the sweep range of the con-
verted signals (i.e. the input and output frequencies at the DUT ports). All measured
quantities (S-parameters, wave quantities, ratios etc.) and other trace settings are
available.
The following restrictions hold for measurements with external frequency converters:
●
Power flatness calibration and power sweep are only available for the R&S ZVA-
Z90 and the latest variant of the R&S ZVA-Z110 (order number 1307.7000.0 3 ); for
these converter types, use the "Frequency Converter Leveling Tool" to linearize the
output power in the frequency range of interest.
●
In order to adjust the output power of other converter models (e.g. for measuring
wave quantities or testing compression effects), use the adjusting screw on top of
the converters (see
chapter 2.2, "Output Power Adjusting Screw" , on page 7). This
is also possible with the R&S ZVA-Z110.
The following example shows the transmission and reflection coefficients of a band-
pass filter in the frequency range between 75 GHz and 110 GHz, which is covered by
the frequency converter R&S ZVA-Z110.
Measurement