"Richard Clark" wrote in message
...
On Thu, 7 Jun 2007 15:59:13 +0100, "Mike Kaliski"
wrote:

It was of course the fact that the cluster of elements and the
array were all in equilibrium and resonant in their entirety.

Hi Mike,

Anticipating that Arthur will use you as a authoritative reference,
what do you mean by equilibrium?

73's
Richard Clark, KB7QHC

Richard,

I am not certain that I have got it all completely straight in my head, but
I have taken it to mean that all the elements making up the array and the
array itself are designed to be resonant about a particular frequency. As
this type of antenna is intended for use with spread spectrum
communications, control over directivity is probably more of a consideration
than gain. At the multi GHz frequencies I believe these antennas will be
operating, they probably won't have any direct correlation to HF amateur
band techniques. The propogation properties of electromagnetic waves change
as frequency increases, so I believe that there is no hidden method behind
how these antennas might work, merely at best, an as yet unrecognised mode
of propogation.

Arts' postings have prompted me to do a little research into GHz frequency
techniques which is an area where I had virtually no knowledge apart from
installing commercial radar waveguide and making sure it was matched to the
scanner. I would hate to think I was an authoritative reference in this
field :-/

Cheers

Mike G0ULI