b. Plotting all the intermediate points between the minimum and maximum
impedance values produces the curve shown in Part B of Figure 17. Notice
that the impedance repeats itself every one-half wavelength.
c. Figure 18 shows how the impedance varies along an open-end
This condition shown in Part A of Figure 18, results in maximum
impedance across the open end.
One-quarter wavelength back from the open
end, the impedance is minimum.
The impedance is maximum again one-half
wavelength back from the open end. The plot of impedance variations along
the open end line is shown in Part B of Figure 18.
Impedance Variations on an Open-End Line.