Abstract:
A radome designed to transmit two electro-magnetic waves of different frequencies. The dielectric wall has a thickness such that it is transparent vis-a-vis the first wave of frequency F1. A network of continuous wires integral with the wall renders the latter transparent vis-a-vis the second wave of frequency F2 lower than F1. Discontinuous metal elements integral likewise with the wall are arranged in accordance with a second network in order to eliminate the grating lobes due to the presence of the network of continuous wires.