"Wimpie" napisal w wiadomosci
...
On 2 feb, 09:37, "Antonio Vernucci" wrote:
For the limitation on lumped circuit approach, it is not important
whether or not it contributes to the overall radiation of a
structure. When you make a floating ground out of 4 quarter-wave
radials (monopole?), this structure has minor influence on the far
field pattern of the quarter wave (or better half wave) radiator above
it.
In
http://www.padrak.com/ine/FARADAY1.html Faraday wrote:
"The view which I am so bold to put forth considers, therefore, radiation as
a kind of species of vibration in the lines of force which are known to
connect particles and also masses of matter together. It endeavors to
dismiss the aether, but not the vibration. The kind of vibration which, I
believe, can alone account for the wonderful, varied, and beautiful
phaenomena of polarization, is not the same as that which occurs on the
surface of disturbed water, or the waves of sound in gases or liquids, for
the vibrations in these cases are direct, or to and from the centre of
action, whereas the former are lateral. It seems to me, that the resultant
of two or more lines of force is in an apt condition for that action which
may be considered as equivalent to a lateral vibration; whereas a uniform
medium, like the aether, does not appear apt, or more apt than air or
water."
Is your 4 quarter-wave radials (monopole?), the same like Faraday's lines?
Two or more monopoles produces "polarised waves".
Two or more monopoles "is in an apt condition for that action which may be
considered as equivalent to a lateral vibration;".
Some textbooks say that Faraday suggested the transverse (angular)
wibrations.
Did he?
S*