Ian Jackson wrote:
In message ,
writes
The theoretical gain of a GP with horizontal radials, radials drooping
45 degrees and and drooping 85 degrees is 1.42, 2.22, and 3.67 dbi.
I would have thought that the 'ultimate' would be when the droop IS 90
degrees (ie essentially a sleeve dipole).
With a droop of 90 degrees, is the gain slightly more than 3.67?
You can't physically have a 90 degree droop. The radials would have to
extend horizontally for some distance, then drop to 90 degrees.
That is a different antenna.
How come that you can have a 1/4 wave radiator groundplane type of
antenna with a gain that is more than a halfwave dipole (2.15 dBi) -even
if it is more-or-less a sleeve dipole?
When the radial droop approaches 90 degrees it really isn't a GP antenna
anymore, it is something else.
--
Jim Pennino