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Old December 3rd 06, 12:37 AM posted to rec.radio.amateur.antenna
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Default Yagi efficiency

Cecil Moore wrote:

Actually Art, adding reactance reduces the current in
the element thus *decreasing* losses below what a resonant
passive element would have. Pure reactance is lossless.


Cecil:

On the surface, this is all very correct, however, you cannot induce
reactance without inducing some value (albeit it may, or may not, be
trivial) of pure resistance (ohmic dc), barring the use of
superconducting material, of course.

I think Art does see that that either magnetically or capacitively (and
both most likely) the resistance and all other aspects of the director
and reflector are being introduced into the driven element's circuit.
This I see stated in his original post and ...

However, how big is that fly speck(s) under your microscope is yet
another question and those answers ...

Warmest regards,
JS
 
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