portable Vector Network Analyzer

Example measurements.


A collection of example measurements. Some measurements are available as .vnaproj files in the software section.


A 36 MHz Quartz Crystal:




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Measurement plotted as Impedance/Phase on a XY Plot and in a Smith Chart.


Attenuator, noise floor and dynamic range measurements:



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A set of attenuators in S12 measurement: 0 dB, -10 dB, -15 dB, 20 dB, -30 dB, -40 dB and -50dB from 100 MHz to 800 MHz.

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Noise floor at around 350 MHz; 10 times averaging was used for calibration and measurement.


noise floor around 4GHz
Noise floor of S21 measurement at around 4GHz


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Performance <1 MHz: Noise floor from 500 kHz to 1 MHz


Antenna Analysis


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2.4 GHz WLAN antenna: frequency scan from 1.6 GHz to 2.7 GHz. Gain(dB) and VSWR (top) and Smith Chart (bottom)