Applications of Multiconductor Transmission Line Theory to the Prediction of Cable Coupling. Volume 7. Digital Computer Programs for the Analysis of Multiconductor Transmission Lines

Four digital computer programs, XTALK, XTALK2, FLATPAK, FLATPAK2, for determining the electromagnetic coupling within an n1 conductor, uniform transmission line are presented. Sinusoidal steady state behavior of the line as well as the TEM or quasi-TEM mode of propagation are assumed. XTALK and XTALK2 consider lines consisting of n wires cylindrical conductors and a reference conductor. The surrounding medium is homogeneous and lossless. XTALK assumes that all n1 conductors are perfect conductors whereas XTALK2 considers the conductors to be lossy. There are three choices for the reference conductor a wire, a ground plane, an overall cylindrical shield. FLATPAK and FLATPAK2 consider n1 wire ribbon flatpack cables in which all wires are identical and are coated with cylindrical, dielectric insulations of identical thicknesses. All wires lie in a horizontal plane and all adjacent wires are separated by identical distances. FLATPAK considers the wires to be perfect conductors and FLATPAK2 considers the wires to be lossy. The dielectric insulations are considered to be lossless. General termination networks are provided for at the ends of the line and the programs compute the voltages with respect to the reference conductor at the terminals of these termination networks for sinusoidal steady state excitation of the line.