Any theory that predicts any antenna can produce an H field without an E
field, or that the H field is unusually large beyond a fraction of a
wavelength from an antenna(*), is flawed. So you're free to make up any
theory you like, and it'll be just as accurate.

(*) Or, from a receiving standpoint, that an antenna responds only to an
H field or it responds more strongly to an H field beyond a fraction of
a wavelength from the antenna.

Roy Lewallen, W7EL

wrote:
Is anyone aware of any sources of information/theory on H Field
antennas, such as the Chelton Loop for HF?