On Sep 23, 9:56*pm, "Walter Maxwell" wrote:
Art, with your knowledge of antenna theory I'm surprised you'd ask this
question. You should know that whenever energy is taken from one direction it is
directed in another--none is lost due to cancellation. If you integrate all the
energy radiated in all directions from a given antenna system (neglecting losses
due to attenuation) it will be the same whatever the arrangement of the
radiating system when fed with the same power.

Walt, W2DU

"Art Unwin" wrote in message

...

Presumably the nulls between lobes on a radiation pattern
are a result of radiation cancellation. IF this is true then it means
we have not harnessed
all the radiation available. What are your thoughts about that Dave?
Can you relate the number of nulls in a radiation pattern with the
number
*of elements in a planar array? You are the expert aren't you?
Art

David has a habit of turning everything upside down and in the absence
of comment usually reserved for me
I have to assume that David is correct in every thing he states
because of the silence of others. So I ask a question
which is upside down on the assumption that David will turn it around.
You must remember that I see electrons of the same polarity which
cannot collide
so you shouldn't be surprized at any thing I say. Reading today a book
on gravity I read a statement that if a moving particle has a magnetic
field
then one can apply the title of radiation as both a particle and a
wave! No wonder everybody is screwed up on this group. As far as
cancellation is concerned that refers to direction where another
vector at right angles takes it's place per Newton. There is a big
difference between cancellation and destruction the latter does not
exist per Newton. You can put that in a book and call it revision 2.