The simulation model of a single conductor dissipative line above a lossy ground, based on
the exact formulation of the Maxwell equations, is proposed for a wide frequency range. The
transmission-line (TL) and fast-wave (FW) propagation constants of the line are computed by
solving the modal equation coming from the continuity of the tangential component of the
electric field at the air-wire interface. Three different expressions of the distributed line
impedance and admittance are suggested with reference to different definitions of the line …

For pt. I see ibid., vol. 38, no. 2, p. 127, 1996. The simulation model of a multiconductor
dissipative line above a lossy ground, based on the exact formulation of the Maxwell
equations, is proposed for a wide frequency range. The procedure is an extension of the
analysis of single conductor configurations. The exact expression of the matrix modal
equation of the line is first proposed, assuming that in the system there are as many
dominant discrete modes of propagation as there are conductors. New expressions of the …