On 30 Jan 2004 02:16:09 -0800, (Maurizio) wrote:

Hi Richard,
my feeling is that in the past some studies have tried to find out the
structure and relative strenght of the ground/space wave fields.
Experience has then given rules to evaluate the losses due to the high
reactive fields near the antenna with the lossy ground (i have seen a
paper using a 6 dB factor to take into account antenna mismatch and
such nearby losses).
It maybe that this is almost all that has been done.
Do you agree?


Maurizio

Hi Maurizio,

I worked on this a couple of years ago:
http://home.comcast.net/~kb7qhc/ante...elds/index.htm

It deals not so much with the variation of ground proximity with a
standard antenna, instead it works against the standard ground with a
variety of antennas.

Due to the intricacy of geometry afforded by a fractal form, this:
http://home.comcast.net/~kb7qhc/ante...atic/index.htm
is the most interesting. Unfortunately, the legacy of academic
fractal research (sic) has offered no more interest than the morbid
study of Down's Syndrome among the Armadillo population.

73's
Richard Clark, KB7QHC