a. Figure 24 shows how ATLs compare to real transmission lines.
Transmission lines are similar to ordinary circuits in that they have
b. Part A of Figure 24 shows a real transmission line and its
throughout the line and can be considered as a number of coils connected in
series and capacitors shunted across the line.
The coils have a small
ATL, all you need are coils and capacitors that have the same lumped
Part B of Figure 24
shows how coils and capacitors can be connected in "pi," "L," or "T"
sections. Any number of sections may be used to make an ATL. Both the real
and artificial lines oppose current flow.
Comparison of Real and Artificial
a. A real transmission
(symbolized by Zo) to the flow
of a real line is equal to the
capacitance. This is expressed
as the formula: