Re: Scalars
Marcelo Puhl ( (no email) )
Wed, 11 Feb 1998 11:07:02 -3
> >
> > So let's consider an omnidirectional radio antenna.
> > What kind of waves does it radiate ?
>
> An omnidirectional antenna still radiates magnetic fields relative to the
> direction of travel. The fact that the magnetic field radiates in all
> directions changes nothing.
>
> > And what if the antenna is an helicoidal type, with circular polarization ?
>
> I've never totally understood how polarization works - and since I don't
> know what the hell a helicoidal antenna is, perhaps you could enlighten me
> so I don't sound like a raving loon? :)
>
An Helicoidal antenna is just a big coil pointing at some direction.
Feeding is on the rear end. A circular reflector is used too.
Marcelo