Abstract

This data set is about the measurement of the statistical electromagnetic field coupling to several shielded coaxial cables. The lines are aligned in parallel to a wall of a reverberation chamber. With a vector network analyzer, the coupled voltage between the inner conductor and the cable shield is measured for different stirrer positions over a wide frequency range. For comparison, the coupled current on the cable shield is calculated based on transmission line theory. From the ratio between the inner voltage and the shield current, a coupling resistance can be calculated. This value is useful to determine the shielding attenuation of the cable shield in decibels.

Instructions:

The raw data of the measurement is saved in text files.

Each subfolder is for a different measurement with a different cable or for the coupling between the antennas.

The meaning of the examplary filename "alpha_0.0_s11_imag.out" is as follows:
- "alpha_0.0" stands for a stirrer angle of 0°
- "s_11" means the scattering parameter s_11 (there are also s_12, s_21 and s_22)
- "imag" is for the imaginary part
- "real" is for the real part

The content of each file is the scattering parameter, where each line stands for a different frequency.

The file "alphas.out" contains all the stirrer angles (in °).

The file "freqs.out" contains all the frequencies (in Hz).

If you encounter any problems or if you have any questions, please contact:

Mathias Magdowski
Chair for Electromagnetic Compatibility
Institute for Medical Engineering
Otto von Guericke University Magdeburg, Germany
mathias.magdowski@ovgu.de or mathias.magdowski@kabelmail.de
Tel. +49-391-67-52195

Dataset Files

Measured scattering parameters for the coupling of stochastic electromagnetic fields to shielded cables above a ground plane shielded_coupling_experiment.zip (26.39 MB)

MATLAB programs and functions to analyze the measurement raw data and to generate all diagrams from the paper MATLAB.zip (21.75 kB)

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