Efficient generation of multiparameter closedform expressions for highspeed transmission line networks

Increased integration levels and higher signal speeds in microwave devices and modules have produced the need to include transmission line effects previously neglected during circuit simulation. Accurate prediction of these effects involve solution of large systems of equations, the direct simulation of which is prohibitively CPU expensive. In addition, there is a significant need for efficient and accurate analysis of components with respect to environmental effects, thermal effects, manufacturing variations and fluctuations in the critical dimensions of transmission lines.