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A large-signal network analyzer: Why is it needed?

Good measurements are a major step towards good modeling. However, besides these measurements, modeling a system also requires a good insight in the system behavior. Do harmonics rise above the noise floor? Must they be taken into account during modeling? Is the system essentially dynamic or static? An answer to the above questions lies in the preprocessing of the measured data as obtained by the LSNA. This technique makes nonlinear effects more visible and allows understanding of the energy transport mechanisms behind the device operation