___________________________________________________ Principles of Transmission Lines
Figure 3-15. Short Section of Two-Wire Transmission Line and Equivalent Circuit
Characteristic Impedance and the Infinite Line
3-52. Like those shown in figure 3-15, several short sections can be combined
to form a large transmission line, as shown in figure 3-16. Current will flow if
voltage is applied across points K and L. In fact, any circuit, such as that
represented in figure 3-16, view A, has a certain current flow for each value
of applied voltage. The ratio of the voltage to the current is the impedance
(Z), as expressed in the following formula:
E
Z=
I
3-15