Having a discussion at work about the H-field around a big parabolic antenna.

All of the saftey tests done around the antenna only mention E-Field. They state in the radiating near-field the E and H are related so no need to measure them both. On the other hand all of the wire antenna have H-field included in their measurments.

I would have thought this was the wrong way around. Simple wire antenna have near-fields extending only a couple of wavelength but paraboic near-field can extend to a few kms.

Only thing I can think of is that the near-field definition only applies to the front of the antanna - the back and surrounds are shileded by the parabola.

Is their a H-field, independent of the E-field in the immediate vicinity of a parabolic antanna?