Scattering Parameters and S-domain

[FrankJ777]

Just curious, are S parameters related to S-domain and Laplace transforms, or is the use of S just a coincidence? I know that when using S parameters you are working in the frequency domain, but it doesn't seem that you need to use the Laplace transform to use the S parameter concept.

 

[matteo137]

No, the do not have nothing to do with Laplace transforms. $s$ comes from "scattering" parameters/matrix.