[Fwd: LF: polarization of small loops]

Andre Kesteloot andre.kesteloot@ieee.org
Wed, 10 Jul 2002 09:53:30 -0400


Rik Strobbe wrote:

> Dear LF group,
>
> I have been looking for some information about the polarization of small
> loops, but no success.
>
> For full-size loops things are quite clear, a loop can be polarized
> horizontal or vertical depending on the feeding point.
>
> What about small loops ?
> I found several descriptions of small transmitting loops close to ground
> and there loops were fed at different places (center horizontal side, at
> the edges). Polarization seems to be vertical in all cases.
> And what about a small loop is free space ? Current distribution is uniform
> over the entire loop, regardless of the feeding point. So one would expect
> always the same polarization (but which one ?). Unless also the voltage
> distribution plays a role.
>
> Anyone who can point me to the right theory and/or has experience with
> feeding small loops at different points ?
>
> Thanks in advance,
>
> Rik   ON7YD