> What linear loading really is is realizing an inductance
> by using a shorted stub of open wire line. Open wire
> line of the type typically used in linear loading doesn't
> result in a high unloaded Q inductor. Also, the inductance
> is frequency sensitive, reducing the bandwidth.
In addition, since the linear loading is often folded along
and relatively close to the element, there is substantial
coupling between the element and the loading. This results
in cancellation in the far field and additional I^2R losses
in the "stub."
73,
... Joe, K4IK
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See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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