On Wed, 15 Dec 2004 07:54:05 -0500, "N4LQ" wrote:

Huh? A folded dipole is a LOOP.

Hi Steve,

Richard is right, but to answer your Huh? then it could be argued
that a standard dipole is an open loop or an unfolded dipole.

Classic radiation resistance formulas that are the basis of antenna
theory introduction are composed at small sizes such that the dipole
or the loop are no where near standard sizes. Their accuracy extends
between roughly a tenth wavelength to a quarter wavelength or more in
the greatest (not perimeter) physical dimension. This is often the
same range of size employed by the Ham in the HF regions.

It radiates the same amount of RF as a circular loop. No more, no less.

Typically, yes, but to ignore the lesson of Rr may lead some to ignore
the importance of Ohmic loss in small radiators. That is to say,
offering the sobriquet that wire has negligible loss must have some
objective correlative: in comparison to what is it negligible?

One Ohm compared to 100 Ohms is trivial, whereas one Ohm in comparison
to 10 mOhms is warmed over death. Same wire, same loop (or dipole),
but far different results for different frequencies that yield
different radiation resistances.

Just in a different direction and more in
the favored direction. Pythagoras who?

Yahoo Pythagoras, an Australian red-headed actor wasn't it?

73's
Richard Clark, KB7QHC