Hello together,
Transmission and Reflection Free-Space Method have been used to get S-parameters of our MUT. As a next step we used scikit-rf for time-domain analysis and gating.
Is there a free available Python or Matlab algorithm (NRW?) to extract relative permittivity taking into account the Free Space Measurement Method? Thanks in advance.
In MATLAB, use the RF Toolbox.
```matlab
% Load your measured S-parameters
sparams = sparameters('path_to_sparams.s2p');
% Extract relative permittivity
epsilon_r = rfparam(sparams, 1, 1, 'EpsilonR');
disp(['Relative permittivity: ' num2str(epsilon_r)]);
```
You need to perform necessary calibration and gating steps on your time-domain data using scikit-rf or other appropriate tools before extracting the relative permittivity. Replace `'path_to_sparams.s2p'` in the code snippets with the actual path to your measured S-parameter file.
Good luck: partial credit AI
hi Verena Marterer
for extracting the relative permittivity of a Material Under Test (MUT) using free space measurement methods and the Nicolson-Ross-Weir (NRW) technique, there are no direct off-the-shelf solutions in Python or MATLAB. However, Python's scikit-rf library can be customized for this purpose, and various NRW implementation scripts are available online for both Python and MATLAB. These scripts may require modifications to align with the specifics of free space measurement techniques. Key steps include preprocessing the S-parameter data, applying the NRW method, and validating the results. Users should be mindful of their setup's accuracy, the frequency range of their data, and the unique material properties of their MUT for reliable permittivity extraction.
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