"Richard Harrison" wrote
It could be an inductive antenna or a resonant (resistive) antenna, and
the radiation fields, E&H, would still be at right angles in space, in
the plane of the plane wave, perpendicular to each other and to the
direction of travel.
I am aware of how these vectorial fields look like ...
When I said "magnetic field and electric field are 90 degrees out of
phase (it is a capacitive antenna)", I was refering that in any point in
space, when the electric field peaks, the magnetic field hits zero; when
the electric field drops to zero, the magnetic field change direction and
peaks again in the other direction, etceteras. I said nothing about the
spatial position of their vectors - which is a known, even by me.
I just said that there is a shift(!) between the sinusoidals.
My point is that a clean EM radiation has both fields in phase, which
means that the scalar values of both vectors (electric and magnetic)
change synchronously: when the electric field peaks, the magnetic field
peaks as well, when the electric field hits zero, so does the magnetic
field.
Therefore, I was saying that I suspect the superposition of two different
EM radiation coming out from a dipole. These two fields do not necessarily
reinforce eachother, but rather they create their own counterparts with
wich they go along.
You must have misunderstood me.
Borrow a copy of Terman`s 1955 edition from a library and study page No.
1.
Thank you for the reference.
Cordially,
Nic.
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