This chapter discusses the application of MATLAB for analysis of two-port networks. The describing equations for the various two-port network representations are given. The use of MATLAB for solving problems involving parallel, series and cascaded two-port networks is shown. Example problems involving both passive and active circuits will be solved using MATLAB. 7.1 TWO-PORT NETWORK REPRESENTATIONS A general two-port network is shown in Figure 7.1. I1 + V1 Linear two-port network I2 + V2 - Figur