Patterns of the external Huygens cube with the edge that is much less than a wavelength, a half of a wavelength, and a wavelength are given. The dependence of its pattern shape on the boundary condition on the second input is shown. The paradox of the external Huygens cube is noted. The influence of the boundary condition on the unexcited input on its pattern is considered. z x y A J e J e J m J m Fig. 17. Directions of the vectors of surface electric ( ) and magnetic ( ) current densities in the case of cophased excitation for waves incident on inputs 1 and 2 of cube А. e J m
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