Thread: Yagi efficiency
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Old December 3rd 06, 08:09 PM posted to rec.radio.amateur.antenna
Cecil Moore Cecil Moore is offline
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Default Yagi efficiency

art wrote:
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.


This current that you are referring to, I used P =I squared R
which leads to lower power. Where did I go wrong


Lower power results in lowering the loss due to heat.
That leaves more power available to be radiated by
the antenna system but not necessarily radiated by
this single element that we are discussing. I suspect
two driven elements are theoretically capable of
better performance than a two element Yagi given
equal total power input into the elements.
--
73, Cecil http://www.w5dxp.com