2-port vector network analyzer ARINST VNA-PR1
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6. DESCRIPTION AND OPERATION OF THE DEVICE
Vector network analyzer
ARINST VNA-PR1
is a technically complex measuring device consisting of a
test (probe) signal generator, directional couplers, a multichannel receiver, ADC, a microcontroller,
LCD
and a Li-Ion battery.
Figure 6.1 - Block diagram of the ARINST VNA-PR1
This is a portable device consisting of the main unit and its accessories (measuring cables, connect-
ors, adapters, calibration tools).
The analyzer performs the functions of forming a probing signal, measuring, calculating and displaying
the measured parameters of the test device.
The analyzer provides adjustment of the output power level of the probing signal generator. Power ad-
justment extends the measurement capabilities of active devices and reduces the probability of exceeding
the maximum power of the input signal of the P2 port specified in the technical characteristics of the de-
vice.
where,
ARINST VNA-PR1
– network analyzer;
DUT
– device under test;
Р1
and
Р2
– port 1 and port 2 of the ana-
lyzer;
U
rwa
– reflected wave amplitude;
U
iwa
– incident wave amplitude;
U
twa
– transmitted wave amplitude.
Figure 6.2 - Schematic diagram of measurements of the
reflection and transmission coefficient
The device generates a probing signal based on the frequency range set by the user.
Summary of Contents for ARINST VNA-PR1
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