Horn antenna covered with an artificial dielectric structure

The present paper reports on the radiation properties of a horn antenna covered with a wire medium structure. This approach is an innovative application for the wire medium and horn antenna where the artificial structure changes the radiation patterns of the uncovered horn antenna, for which some strong effects are observed. The design and constructive details are presented together with full-wave electromagnetic simulations and experiments. Structural design and analysis are in the X band frequency range (8.2 to 12.4 GHz) whereby numerical simulation and experiment are presented and discussed along with wire medium electromagnetic theory.