Roy Lewallen wrote in
:

A very small loop responds less strongly to the electric field than a
very small dipole only within a fraction of a wavelength of the
antenna.

I have seen this expressed as a sensitivity to E and H that imply an
impedance that varies with distance from the antenna, and that it
"bounces around" (that is a technical term, you know) eventually
converging on 120*pi.

Is that correct?

Beyond that, it actually responds more strongly to the electric field
than the dipole does. So at HF, for example, it would be helpful only
in

Roy, accepting that the response of the loop and dipole to electric and
magnetic fields are different close the the antenna, do they not
eventually converge on sensitivity to E and H in the ratio of 120*pi
when immersed in the far radiation field?

I don't know if I have put that sensibly.

My understanding was that when placed a very long way from the sources,
neither one had any advantage in response to the desired signal just by
virtue of their type (loop vs dipole).

Owen