Radio-frequency component comprising several waveguide devices with ridges

A radio-frequency component comprising several waveguide devices arranged in an array for transmitting and/or receiving electromagnetic signals, the radio-frequency component comprising several ridges, each waveguide device comprising:

• at least one inner wall;
• at least two upstream openings in the direction of propagation of said signals during emission;
• a downstream opening in said direction of propagation of said emitting signals, linked to said at least two upstream openings so that said emitting signals are transmitted from said at least two upstream openings to said downstream opening;
• wherein:
• the arrangement of ridges in the downstream openings of each waveguide device comprises no more and no less than three ridges,
• the number of ridges in each upstream opening of at least one waveguide device is not three, and
• in each waveguide device, a first ridge in the downstream opening extends in said direction of propagation to the at least two upstream openings so as to form a septum.