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Hi Edgar,
good question. I think on LF, where the size of the
antenna is much smaller than a wavelength, the shape of the loop does not affect
the radiation pattern at all. This is even true if it were distorted in three
dimensions, there is always an effective axis which defines the direction of the
two opposite nulls. Also the height above ground (or below it in the case of an
earth antenna) makes little difference.
Induced voltage is proportional to area, so
the 2x2 should produce slightly more signal than the 1x3. On the
other hand, depending on local environment, B may be better than A in terms of
ground losses and local QRM pickup.
Best
wishes,
Markus
Sent: Sunday, September 23, 2012 5:32 AM
Subject: LF: loop - low angle signal reception
Hi,
The rectangles in the image
are ment to represent loop receiving antennas.
The numbers represent the length of the sides. ie
there have the same perimeter.
Does making the rectangle taller
provide better low angle signal reception?
Regards Edgar
Moonah, Tasmania.
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