"tom" wrote
. net...
Szczepan Bia³ek wrote:

And you tell us that radiation from monopoles antennas is polarised.
There was a topic polarisation. In wave area is term alignment when we
have the two sources. Aligment of "dipoles" not means that waves are
"transverse".
In the reality no transverse waves. Waves appear in compressible medium.
All waves are the "pressure" waves. In math you can assume
incompressibility. But we here NO.
S*

So, pray tell, explain the physics of a vertically polarized pressure
wave.

One wave is not polarised. The two pressure waves from the two sources
interfere. See "Directivity and phasing".

You obviously know what's going on here, and I do not. Please educate me.

"This fourth edition blends, in Joseph J. Carr's words, "the theoretical
concepts that the engineers and others need to design practical antennas,
and the hard-learned practical lessons derived from actually building and
using antennas -real antennas, and the hard-earned practical lessons derived
from actually building and using antennas - real antennas made of real
metal - not merely theoretical constructs on a blackboard."

Now is the electronic era. Electronic is from electrons. They are
compressible and have the inertia. You all construct antennas where
electrons build up voltage. But on the blackboard are math for
incompressible fluid. Look at the famous equations - there no voltage at all
(only current).
If somebody do math for electrons then such math will be on the blackboards.
But it is not necessary. The beautifull EM equations are the same like for
fluid mechanics. They will be saved. Radio engineers do not use them and can
wait for the proper ones the next centuries.
S*