S-parameters are mathematical representations of energy propagation within a multiport electrical network. It is written as a complex matrix file known as scattering parameters. The S-parameter file represents full combination of the reflection and transmission parameters in a multiport network with a frequency component. It gives an idea of how the DUT behaves with a signal in both forward and reverse directions.

**Parameters**

**Formats**

**N port S-matrix**

**Mix mode s-parameters**

**Touchstone format:**

**Vector Network Analyzer**

william scott chesnut says

great page

Lokesh says

Good one. Thank you.