"'Doc" wrote in message ...


Dave,
----snipped--------
passive dosen't mean 'no current flow' in this context, it means not
driven
from the feedline.


And the 'passive' element of a dipole antenna ~isn't~ fed
from the feed line? Confusing'er and confusing'er.

i've been maintaining that a properly implemented dipole does not have a
passive element.
both halves should be driven. in the case where it's fed directly with
coax, it isn't clear to me wether the shield connected element is getting
current from the inside of the shield, or by illumination from the center
connected element. i suspect both are true, to some degree.
certainly the rf on the feedline now couples into the system, and makes
things even fuzzier.

I thought both 'halves' of a dipole were fed by the feed line, certainly
every one that I've made, or seen have been.

No, I'm aware of that. But are you the one who 'minted' the
"two signal" way of looking at a single signal? Like some other
types of esoteric thinking you have to be very careful where
they
are applied, and how.

i wasn't as clear as i intended to be.
you can view the output of a balun as two out of phase signals, at half the
input power, or a single balanced signal. i wasn't sure if the fellow i was
talking to at that point, knew what you get at the output of a balun.

If you aren't careful, they deteriorate
into nonsense as has happened here. If how you think about a
dipole antenna helps you with what you're doing, then fine, have
at it. That doesn't make it 'correct' or the 'right' way of
doing
things, though, and it is very confusing to someone who isn't
familiar with that particular 'theory' of operation. If you
want to
call a dipole by another name, that's fine too. But it don't
make
it so.

no, the point i was making is that a dipole, is designed to be fed from a
balanced source, and it does make a difference. the magnitude of the
difference, in gain, radiation, and rf on the feedline /when feeding it
unbalanced/ is debatable.

Aunt Martha wasn't born with wheels, so she really isn't
a Buick... no matter what she thinks.
'Doc

beep beep /vbg/