"christofire" napisa³ w wiadomo¶ci
...

"Szczepan Bia³ek" wrote in message
...

"JIMMIE" wrote
...
On Sep 14, 1:56 pm, "christofire" wrote:
"Szczepan Bia³ek" wrote in message

...



"Richard Fry" wrote
...

- - small snip --



QUOTE
A radio antenna may be defined as the structure associated with the
region of transition between a guided wave and a free-space wave, or
vice-versa. Antennas convert electrons to photons, or vice-versa.

Regardless of antenna type, all involve the same basic principle that
radiation is produced by accelerated (or decelerated) charge. The
basic equation of radiation may be expressed simply as:

IL = Qv (A m s^-1)

where

I = time-changing current, A s^-1
L = length of current element, m
Q = charge, C
v = time change of velocity which equals the acceleration of the
charge, m s^-2

Thus, time-changing current radiates and accelerated charge radiates.

In which parts of antenna the charges acclerate?
S*

In all the parts that carry current, of course. Isn't that obvious?

Incidentally, who is A* ? ... the person who wrote:

Does one wave has many polarizations, or one antenna has many
polarizations?
Which one: transmitter or receiver? Could you teach me?
A*

Chris

Could mean that Art and S are the same person, one does seem to appear
when the other disappears.

You are right. Few mans ago I was writting that Gauss law is enough to do
antennas. Of course not this for magnetism.
Static charge produces static electric field and pulsed (in the end of
the antena) alternating field. It is radiation. For me there are ether
vaves. For Art photons or something else.
S*


Which one of Gauss's two laws?
Above is wrote: "Of course not this for magnetism". The electric one.
S*