Application of the genetic algorithm in modeling RF on-chip inductors

The genetic algorithm (GA) with parameter confinement has been introduced into the extraction of model parameters for RF on-chip inductors. The details of applying the GA in extracting the model´s parameters are discussed. For a set of inductors, the meaningfulness of extracted parameters is considered in the procedure of extraction. The S-parameter, inductance, and Q value can be set as the fitting targets simultaneously in this study. The values of model parameters are extracted by a fully automatic programmed GA procedure, which show excellent quality of fit when compared with the measured data.