"Cecil Moore" wrote
...
Szczepan Bia³ek wrote:
Each dipole antenna radiate two times the applied frequency, ...

Sorry, 2*sin(2wt) sin(wt)

Here's the question: Is the radiated RF wave in phase
with the standing wave current or in phase with the
standing wave voltage? The radiated RF wave cannot be
in phase with both since they are 90 degrees out of
phase on the standing wave antenna.

In the Gas analogy radiate only the doubled voltage. The doubling take place
in the ends of the two radiators. The two spherical waves are radiated. So
some receiver antennas can work on doubled frequency (Luxembourg effect).
S*