  We measure strong magnetic field intensities in a subwavelength gap
separating two dielectric resonators. This dimer magnetic antenna is
characterized in the GHz spectral regime when considering three conditions of
illumination. We detail the different magneto-electric couplings involved in
the enhancement of the near magnetic field and derive the analytical expression
of the magnetic field intensities. The results reported here in the GHz domain
can be extended to other spectral domains since they are obtained with a
dielectric permittivity 16 that can be observed in a very broad spectrum
ranging from optics to radio-frequencies.
