Modeling the Distributive Effects of RC Transmission Line Using Recursive Segmentation and Applications to MOSFETs and BJTs

A method for modeling the distributive effects of RC transmission line is developed which is applicable to cases in which one end or both ends are connected to the input signal. Nonuniform recursive segmentation is used. The segments are categorized into three types, with each modeled by a distinctive and asymmetric lumped circuit in π topology. The number of segments is determined by the frequency range required. The new method is applied to model the distributed MOSFET gate and bipolar junction transistor base. Both frequency and transient response characteristics are much better modeled compared with existing methods.