Richard Harrison wrote:
Dan wrote:
"---of course at that point you could just run open wire line to any
snip.

As for efficiency, J.D. Kraus says:
"The efficiency of an antenna is defined as the ratio between the power
radiated by it and the power delivered into the antenna." (page 866 of
3rd ed. of "Antennas".

I would think that the definition quoted was more applicable for a
radiator
than a antenna since the latter consists of addative and so called
destructive radiation. If an antennas radiative field was totally
destructive
the definition stated would include that as an efficient antenna !
Art

Best regards, Richard Harrison, KB5WZI