[Antennas] Re: Elevated Ground Plane Question
[email protected]
[email protected]
Tue, 08 Oct 2002 21:07:23 -0500
Top loading is the most efficient form of loading a shortened
vertical! That's true in broadcast or amateur circles :)
But of course the question here does not concern the vertical
radiator but the ground radials...and they should be kept out of
the way of the vertical element....
Chris
WB5ITT
W2WU wrote:
>
> A small "top hat" on a vertical is an old broadcast antenna trick.
> I agree that putting radial on top of the antenna would severely limit
> current flow and proper radiation.
>
> In fact a large hat would cancel proper radiation. See: Dr. Brown & his
> paper on vertical antennas. Also see "Antenna Engineering Handbook" by
> Jasik, John Battonson B.E. & other applicable engineering texts.