Simulation of Nonuniform coupled transmission lines using approximated S-parameters model

The paper presents the method of approximated S-Parameters calculation in application of Nonuniform Coupled Transmission Lines. In the work we present the network with two coupled tapered lines. The space dependence of RLC parameters of the lines are interpolated with analytical functions. The S parameters are calculated using the method of successive approximation. The output response to the trapezoidal input is presented and compared with the numerical solution of exact integral equations of the lines.