Has anyone looked at this patent?

See http://l2.espacenet.com/espacenet/viewer?PN=WO0245210

for details.

It's basically a coil wrapped around a ferrite rod/tube
that sensitive to the magnetic part of the electromagnetic
field.

The author claims it can be built small, handle high
power, and is mostly omni-directional.

They also went to the trouble of patenting it
in Canada, number CA2427575, but I can find no US patent.