Characterisation of TEM and non-TEM planar transmission lines with a full-wave 3D field analysis technique

A full-wave 3D method of moment analysis technique is used to simulate a finite length planar transmission line embedded in a multilayered medium. The circuit parameters of the transmission line follow from the identification of the field simulation results with a two-port equivalent circuit. A new de-embedding technique is used to remove the influence of the port discontinuities. The circuit model of the transmission line provides a new 3D calculation technique of the characteristic impedance of both TEM and non-TEM planar transmission lines.