ABSTRACT
The equivalent circuit of a generic transmission line in monochromatic single frequency operation is shown in Figure 15.1 [1-3], where _Z is a series impedance per unit length of the transmission line (V=m) and _Y is a shunt admittance per unit length of the transmission line (S=m). For a uniform, nonlinear transmission line, either _Z or _Y or both _Z and _Y are functions of the transmission line voltage and current, but both _Z and _Y are not functions of location on the transmission line. For a nonuniform, linear transmission line, both _Z and _Y are functions of location, but not functions of voltage and current on the transmission line. For a nonuniform and nonlinear transmission line, both _Z and _Y or _Z or _Y are functions of the voltage, the current, and the location on the transmission line.
