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HP / Agilent 4291A RF Impedance / Material Analyzer
The HP / Agilent 4291A RF impedance/material analyzer provides a total solution
for high-accuracy and easy measurement of surface-mount components
and dielectric/magnetic materials. The HP / Agilent 4291A uses a direct current voltage
measurement technique, opposing the reflection measurement
technique, for more accurate impedance measurement over wide impedance
range. Basic impedance accuracy is ±0.8%. High Q accuracy enables
low-loss component analysis. An internal synthesizer sweeps frequency
from 1 MHz to 1.8 GHz with 1 mHz resolution. A 1.8m error-less cable
connects the analyzer to a test station so you can extend your test point
away from the analyzer without losing accuracy. Advanced calibration
and error compensation function eliminate measurement error factors in
fixtures and assure high accuracy and repeatability at DUT/MUT.
The HP / Agilent 4291A also provides automatic level control and monitor of
test signals by using IBASIC programming function; devices can be measured
under a constant voltage or current. Measure bias-dependent
impedance characteristics with optional dc bias (up to 40 V and 100 mA).
At the push of a button, the built-in Equivalent Circuit Analysis Function
automatically calculates the circuit constant values of five circuit models.
The HP / Agilent 4291A has two measurement channels; each channel can
be set to measure a single (e.g. 2) or dual (e.g. Z-theta) impedance parameter.
The color CRT with split-display can show both active traces and
memory traces (stored in RAM). A built-in floppy disk drive stores programs
and test data in either LIF or MS-DOS format.
Agilent 4291A Features:
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Basic accuracy ±.08%
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Advanced calibration and error compensation
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Four component test fixtures (DUT size: 0.5mm to 20 mm)
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Independent parameter selection in 2 channels
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Direct read-out permittivity
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Two material fixtures (operating temperature: -55°C to + 200°C)
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Versatile anaylsis (temperature, cole-cole plot, relaxation time)
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Swept parameters (frequency, ac level, dc bias, temperature)
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