Coaxial horn antenna and its usage perspectives in ground-penetrating radar systems




cylindrical horn antenna, central rod, antenna pattern width, depolarized wave


The design of a cylindrical coaxial horn antenna with a generatrix bend and the central conductor mounted along its axis is proposed. Two constructions types (varieties) of such antenna are studied. In the first case, such conductor is a metal-dielectric rod, which does not reach the throat of the horn. In the second one it is a copper rod, reaching the throat of the horn. Experimentally confirmed that for certain sizes of the rod such antenna constructions provide reduced width of the antenna pattern by 12° and allow to receive electromagnetic wave with arbitrary polarization.


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