One high- efficiency analysis method f or high- speed circuit networks containing dist ributed parameter elements

In the field of high-speed circuits , the analysis of mixed circuit networks containing both distributed parameter elements and lumped parameter elements becomes ever important . This paper presents a new method for analyzing mixed circuit networks. It adds transmission line end currents to the circuit variables of the classical modified nodal approach and can be applied directly to the mixed circuit networks. We also introduce a frequency- domain technique without requiring decoupling for multiconductor transmission lines. The two methods are combined together to efficiently analyze high-speed circuit networks containing uniform , nonuniform ,and frequency- dependent transmission lines. Numerical experiment is presented and the results are compared with that computed by PSPICE.