On 8/23/2016 2:09 PM, Jeff Liebermann wrote:
On Tue, 23 Aug 2016 13:14:32 -0400, rickman wrote:

Not sure what you mean. You are aware that magnetic loops and loops are
not the same thing. Magnetic loops are a subset of loop antennas.

To add a little confusion, the convention is for the polarization to
be that of the E-field (electric field) and not that of the H-field
(magnetic field), even if the communications ocurrs using the H-field
as in a shielded loop antenna.
https://en.wikipedia.org/wiki/Loop_antenna#Radiation_pattern_and_polarization
Small loops (0.1 wavelength circumference) are also a subset of loop
antennas.
http://www.antenna-theory.com/antennas/smallLoop.php

Loop antenna users are also polarized. Some users hate them, while
other users swear by them. There is some middle ground, but not in
public forums.

I've been told that the term "magnetic" loop is the same as "small"
loop. It refers to the facts that the near field of a small loop is
mostly magnetic ( 1/10 lamda) and that they respond to the magnetic
component of the EM wave. I'm not sure how that matters in real world
use though as all antenna transmit both E and M in the far field.

--

Rick C