On Aug 28, 2:46*pm, Art Unwin wrote:
On Aug 28, 1:36*pm, K1TTT wrote:



On Aug 28, 3:07*pm, Art Unwin wrote:

Superconductors have been used as antennas where the gain has been
much much more than ham antennas. It does this by removing or
resisting the external magnetic field thus allowing the current flow
to exit the material and travel along its surface. Thus we are able to
reduce material
true resistance or losses and contribute solely to radiation.
By the same token, coils can be wound where it is totally resistive by
removing reactive forces. This also means the disappearance of skin
depth where the external magnetic field gains a foot hold. Thus, as
with a superconductor, we have removed the presence of resistive skin
depth resistance by allowing the current flow to exit the metallic
material and travel on its surface.
There are two resistances that must be dealt with in determining
efficiency where one is controlled by radiation that requires a equal
and opposite effect thus leaving only the metallic resistance to
concentrate upon
to increase efficiency. *In both of the above cases we have been able
to divert current flow to the surface of the radiator to avoid the
intrinsic resistance of the radiating element, thus allowing all
alternating current flow to devote itself to creating radiation.
Art Unwin

old hat, come on art, you can do better than try to latch onto someone
else's patent:http://www.freepatentsonline.com/5105200.html

Where is the beef? Where is the patent? What exactly do you think the
patent is claiming?
Is the claim legitimate? Has the ham community
agreed on the removal of an external magnetic field for maximum
efficiency? You have consistently denied over the years and now
miraculesly you rush to defend it. Why are you so evil? As I stated
earlier your intuitions are leading you astray in the absence of
physics teachings or classes. Go to the Physics forum and ask for the
truth.

I finally got around to read that patent you were referring to. It
involves the increase in radiation that can be achieved by
superconductors in temperatures way below that seen by humans.
for hams and industry using this knowledge by far the biggest expense
is the extreme cooling equipment that is required as evidenced by MRI
costs which is more than the most avid ham could afford. There is no
doubt that the repelling of external magnetic fields removes the
formation
of resistive skin depth of these ultra cool materials.
I advocate the use of the Meissner effect with antennas that does not
require the extensive cooling costs equipment required by
superconductors to remove the presence of the resistive skin effect
that superconductors have shown is very advantageous when designing
antennas. These are differences in both of these methods in removing
the unnecessary losses of magnetic field generation but the
commonality
between them is the increased efficiency in radiation. A side issue is
that the idea of smaller radiators is a reality as the idea of
radiators must be straight is totally false. The bottom line being
that every inch of current flow produces radiation
whether we like it or not and cannot be suppressed.
Tom, you should avoid trying to give the impression that you are
skilled in physics. You are not an engineer and you only work under a
engineers supervision because of your lack of knowledge.