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Old September 5th 09, 08:45 AM posted to rec.radio.amateur.antenna
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Default Corriolis force


"Dave Platt" wrote
...
In article ,
Jeff Liebermann wrote:

I forgot to connect my comments to the original question. Sorry(tm).
You're correct. There's no way to get a good isotropic radiator
pattern with a simple vertical radiator. However, you can still get
fairly close if you make the antenna sufficiently small relative to
the operating wavelength. As the physical antenna size approaches a
point radiator, the pattern starts to look rather spherical.


The difference in pattern between a half-wavelength dipole,
and an infinitesimally-short dipole (i.e. one whose length
approaches a point source) is actually quite small.


A dipole is always the two monopoles and never a point source. Only monopole
is a point source.
S*

 
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