On 3 Jul, 09:40, art wrote:
On 17 Jun, 16:13, "Mike Kaliski" wrote:





"John Smith I" wrote in ...

Actually, old news from 3 years ago ...

http://www.eetimes.com/showArticle.j...cleID=21600147

JS

The guy doesn't even seem to realise that height is one of the prime factors
in optimising propogation, particularly at medium wave frequencies and vhf.
Building a tall mast costs plenty of money and if commercial radio stations
could broadcast efficiently from an antenna the size of a bean can, they
would have done it years ago.

This is surely just a couple of coils wound in opposite directions with
capacitive coupling and a capacity top hat to prevent coronal discharge and
maximise current in the top half of the antenna. Basically a form of top
loaded, inductively wound whip antenna tapped somewhere up from the base in
order to pick up a 50 ohm matching impedence at the design frequency. I
don't see any new or innovative principles at work here.

Now if he could make it work efficiently on all frequencies with 50 ohms
impedence and with no requirement for further matching or adjustment of any
sort, I would be impressed. :-)

Mike G0ULI

Mike
The antenna is based on confirmed scientific findings of the masters
and can be proved mathematically as one would expect from such an
antenna.
It is true that what happens to radiation when it is formed is
important
but what is more important is to understand radiation in its formative
stage.
When this is understood then miniturisation comes to the fore that
may
well be more important than the TOA but then even this antenna can be
raised in height. There is a lesson to be learned here. The Yagi was
invented by the Japanese in the early 1920 where America embraced the
invention
and where Japan did not. That same invention proved to be one of
Japans
undoing as they never caught on to the importance possibly by
beurocracy.
This new antenna has been pushed aside by America where I am positive
other Countries are moving fast ahead and now have 3 years lead to
play with.
It is America this time that is complacent. The antenna is there,
the mathematics is there and Maxwells laws are still there, all of
which conform with each other both with this antenna and my Gaussian
antenna but who cares.
Art Unwin KB9MZ.......XG- Hide quoted text -

- Show quoted text -

Mike,
As a Londoner you will appreciate the following. When the war finished
I started my first real schooling at a school that was surrounded by
blocks of debris
but the school was still standing. It was destroyed in WW1 with about
30+ kids dead.
Finally dad got demobbed and came home to our house which was a bomb
damaged house
because the other house was flattened.We as a pair went to Petticote
lane on Sundays
because dad had a interest in radio and I had to get the water
batteries to run it.
One day dad came back from Petticoat lane and brought home with him a
coil of wire
that you plugged into an outlet and that was the new antenna. I had
not had much
schooling up to that time and at the age of 14 had only one year
before one had
to leave and go to work. Mum got me into a school at dockside for
ships
engineers and navigators and tho a year late I at least got two years
of
education despite the war which followed by years
and years of night school I got the education that any college kid
even tho
I was 10 years older. Now I have the mantra that if it is" resonant
and in a
state of equilibrium" it is what I call a Gaussian antenna. So here
at near
the end of my life I finally got to the bottom of the science that
dad
put before me as peace settled on the East End of London. What dad
plugged into the wall was an antenna that was "resonant and in a
state
of equilibrium" and where its resonance was in the AM band.
60 years later his son resolved the question because of the pursuit
of an education.
Shame he isn't alive to hear 'the rest of the story'
Cheers and beers
Art Unwin KB9MZ.......XG