On Sun, 10 Aug 2003 08:54:56 -0500, "William E. Sabin"
sabinw@mwci-news wrote:

It seems that very close to (but slightly removed
from) the antenna the real part of the resistive
space impedance is nearly the same as the real
part of the driving point impedance of the
antenna. This real part is then transformed to 377
ohms (real) within the near field, suggesting that
the open space adjacent to the antenna performs an
impedance transformation. The near-field reactive
fields perform this function in some manner.


The figures at:
http://home.comcast.net/~kb7qhc/ante...pole/index.htm
illustrate just how the dipole's near-field reactance maps out
(without respect for phase, and expressed in SWR relative to free
space Z).

Note that employing the term transform and antenna within the same
context is not de rigueur. ;-)

73's
Richard Clark, KB7QHC