The Small-Signal Analysis, Frequency Domain (
) study is used for studying small oscillations about a biased solution in electromagnetics.
The study consists of two study steps: a Stationary study step, for computing the biased solution, followed by a
Frequency-Domain Perturbation study step, for computing the frequency response about the biased solution. For the second study step, the computation is for a linear perturbation about the biased solution.
To add harmonic perturbation, see Harmonic Perturbation — Exclusive and Contributing Nodes. See also
linper for information about the
linper operator for indicating load terms that should be used by stationary solvers setting for harmonic linear perturbation.