Accurate reduced RL model for frequency dependent transmission lines

In this paper, we provide a new algorithm to model the frequency dependent RL parameters of transmission lines. Each set of the parameters is modeled by the input impedance of a single RL port. The modeling process consists of two steps. In the first step, a model with high enough order is generated to fit the given data precisely, and in the second step, model order reduction is applied to reduce the model order while keeping the accuracy of the model high enough. Experiments show that this algorithm generates models with low order and high accuracy.