Analysis of nonuniform coupled transmission lines using generalized transmission line equations

In this paper, a new analysis for nonuniform coupled transmission lines is presented using 2D generalized transmission line equations (GTLE). To simplify the computation, the decouple procedure is adopted. And then 2D-GTLE are transformed to 1D-GTLE. 2D-GTLE have broad band characteristic. The analysis is validated by comparison between the S31 parameters obtained by 2D-GTLE and MOM solutions.