Microwave antenna with a cross-polarization feed built in a multimode monopulse feed

摘要

A multimode monopulse feed has an E-plane multimode structure comprised of a section (1) of rectangular waveguide fed at its input by an array of excitation waveguides (2,3), and extended at its output by a rectangular horn (6). The cross-polarization feed comprises at least one dipole (9) disposed in the aperture of the horn (6) of the multimode monopulse feed with an orientation such that its electric field is orthogonal to that of the multimode monopulse feed, and a grid made up of metal bars (13) parallel to each other and to the electric field of the dipole (9), disposed at the rear of the dipole (9) in the aperture of the horn (6) of the multimode monopulse feed.