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Q.What is the difference between S-parameters and Netlists?

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A. S-parameters can be used to explain the amount reflection and transmission when a signal is given to a component that is used as a black box.
A Netlist contains equivalent circuit information that can be read using a simulator after a component is made as an equivalent circuit.
Usually, Netlists are used for analyzing time domains such as transient analysis. S-parameters are used for analyzing frequencies.
S-parameters use actually measured values, while Netlists themselves are equivalent circuit models and actually measured values are often different from the Netlist, especially in the high-frequency range.

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