On Sep 14, 7:20*pm, Richard Fry wrote:
On Sep 14, 12:03*pm, Richard Fry wrote:

On Sep 14, 11:15*am, Art Unwin wrote:

Now we have something that meets reality, where increase in current
applied creates an increase in radiation...

NOW ?? *This has been true forever.

... and where the model is seen
to be a boundary consisting of particles bound to each other! This is
basically implied by Maxwell's equations as illustrated by the
computer programs where radiation increase is proportional to the
decrease of impedance of the energy robbing metallic radiator etc

Decreasing the feedpoint impedance of an antenna to 0 +j0 ohms (if
that were possible) does not maximize radiation.

The first term in the antenna impedance specification in a practical
antenna consists mainly of radiation resistance -- which is required
in order for radiation to occur. *Radiation resistance is a function
of the electrical length, diameter and form of the radiator exposed to
space. *If it is zero then there is no radiation.

Higher radiation resistances lead to higher efficiencies for the
antenna SYSTEM, because then the power radiated can be much greater
than what is dissipated in the relatively smaller I^2R losses of the
system.

RF

__________

Art,

How do you respond to my comments to your statements above, seeing as
though you have responded to later r.r.a.a. posts with no further
response to the above sequence?

NO RESPONSE from you easily may be taken to understand that you cannot
defend/support your position on such subjects.

If your lack of response was an oversight, then probably most of us
will understand.

But what IS your position on this subject?

RF

Sorry, but that is how it is. I do respond to some statements but not
all.