Cecil Moore wrote:

Jim Kelley wrote:

Cecil Moore wrote:
In any case, it appears to me that an antenna is not a two terminal
network. It appears to be a three or four terminal network with a
virtual ground.

The only way I can see to model it and get these particular results
would be to have it as a device which increases in impedance at every
point along its length, and which has a current path to ground at each
of an infinite number of such points.

For a 1/4WL vertical, that would be true even if the path to ground
is through displacement currents. But, what about free space?

Evidently there's some kind of an equivalence between electric current
and the electric smoke liberated by the antenna. ;-)

73, Jim AC6XG