Deembed S- parameters

Ganesh Prasad

2024 1 25

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I need to de-embed a probe's single S-parameter to get back the original signal without the distortions added by the probe.

I do not have three s-parameter files relating to the DUT and 2 Fixtures as shown in the example below.

I do not have 3 S-parameter files to use the below example.

S_DUT = deembedsparams(S_measuredBJT,S_leftpad,S_rightpad);

Can someone please let me know how to go about deembedding a Fixture's(probe in my case) single S-parameter file.

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Patrick Wegener 2024-6-12

Hi Ganesh,

i have a similar problem. Have you found a workaround solution?

best regards

Patrick

Ganesh Prasad 2024-6-12

编辑：Ganesh Prasad 2024-6-12

Hi Patrick, I could not find a tool in Matlab to Deembed S parameter output.However a code was written to get back the input if an output waveform of S parameter is known.Please look into the below question under my name: Determining the input from the output using IFFT. It worked for me.Hope it helps you as well.

Best Regards

Ganesh

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