Full-wave characterization of cylindrical layered multiconductor transmission lines using the MoL

The method of lines (MoL) has been modified for application in cylindrical coordinates. When the variables are discretized in /spl theta/-direction, a transformation matrix is found analytically to decouple the discretized ordinary differential equations. Furthermore, the normally second order accuracy of the MoL is improved to the fourth order. This scheme is applied to the field continuity condition and the edge condition and leads to significantly improved computational efficiency of the method.<>