Analysis of Multiconductor Quasi-TEM Transmission Lines and Multimode Waveguides

This paper presents an analysis approach of multicondcutor quasi-TEM lines transmission interconnect in a single dielectric region and multimode waveguides using the finite element method (FEM). We illustrate that FEM is suitable and effective as other methods for modeling of interconnecting lines in highspeed digital circuits. We mainly focus on designing of five-conductor transmission lines interconnect in a single-layered dielectric medium and multimode waveguides. We computed the capacitance, inductance, and impedance matrices, and then we identify the potential distribution of the five-conductor transmission lines interconnect in a singlelayered dielectric medium and multimode waveguides. Our method showed very good accuracy in comparison to the other methods.