The invention relates to antenna technology. The emitter on the conductive plane characterized in that the antenna radiator is placed in the hemisphere of the material, the impedance (impedance) which is matched to the impedance (characteristic impedance) of vacuum. The radius of the hemisphere with a vacuum impedansnosoglasovannogo material is less than 1/12 of the operating wavelength in vacuo impedansnosoglasovanny material which surrounds the emitter must have the following properties: the ratio of the real part of the relative dielectric constant to the real part of relative magnetic permeability greater than 1/2 and less 2; tangent of the dielectric and magnetic losses less than 0.1; the real part of the relative dielectric constant E times the permittivity of free space, the real part of the relative permeability is M times greater than the magnetic permeability of vacuum. The technical result consists in providing the possibility of reducing the operating range of existing emitters often without changing their dimensions. 2 yl.
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