MegiQ VNA04 Series, Руководство пользователя

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VNA0440 – VNA0440e
VNA0460 – VNA0460e
user manual V3.1
- 6 -
www.megiq.com
1. Introduction
About the VNA0440 / VNA0460 series
The MegiQ VNA0440 / VNA0460 series is a USB driven Vector Network Analyzer that
can perform full bidirectional 2-port measurements. The e-version adds 3-port
measurement, an internal programmable bias generator with bias-Tee's.
We will refer to the different VNAs collectively as VNA04x0 .
About this manual
This manual is a guide to using the VNA04x0 and the user software that is supplied with
the VNA. It will introduce you to the possibilities and features but it is not an in depth
book on VNA measurement techniques.
The manual uses the MegiQ VNA Sandbox , a UFL learning toolbox, for explanations
and examples of VNA measurements. The techniques equally apply to measurements
using other connectors and systems.
The VNA Sandbox has its own tutorial manual that goes into the details of the
measurements and the theory behind it.
Calibration
The VNA04x0 is fully calibrated from the factory to perform measurements at its RF
ports .
However, in many test setups there are cables and adapters to get from the DUT to the RF
ports. This test setup affects the measurements and need to be normalized out of the
measurement results. This is achieved through a process called
Calibration , which must
be performed by the user with the actual test setup.
It is important that this calibration is performed with care and consideration of the test
setup. Please read the section on Calibration carefully.