An interesting design...

Keep in mind that you are building a relative, not absolute measurement
device. ie you can calibrate (or not) it anyway you like. Any piece of
wire will have a voltage induced into it by a passing EM field!

The only real concern is that you may want to ensure that the
directivity of the quad is reasonably unidirectional. Some quad designs
have pretty bad front to back performance. This may give you erronous
results if you start seeing reflections or other TX's of the back of
your antenna. The easy way to overcome this is to calibrate the pattern
by rotating the unit in an active 2.4GHz field and noting some values.
You can then use these in later tests.

Cheers Bob

SparkyGuy wrote:

Regarding the dimensions of the wire loops: