Feeder horn, intended particularly for two-way satellite communications equipment

PCT No. PCT/SE95/00878 Sec. 371 Date Jan. 27, 1997 Sec. 102(e) Date Jan. 27, 1997 PCT Filed Jul. 20, 1995 PCT Pub. No. WO96/04693 PCT Pub. Date Feb. 15, 1996A feeder horn for two-way satellite telecommunications includes a center transmitter/receiver horn (10) and at least three separate measuring (11, 12, 13) which are positioned symmetrically relative to the symmetry (O) of the feeder horn. All horn are produced mechanically in a one-piece metal structure (1) which includes the transmitter/receiver horn (10) accommodating and through-penetrating a center opening (100) which merges with a transmitter waveguide (101) and a receiver waveguide (102) which are separated by a filter of the orthomode transducer type (OMT), which is constructed for separating differing polarizations and comprises an output to the center opening (100) of the metal structure and two inputs to respective waveguide for the transmitter and receiver waveguides; wherein the metal structure further includes a bottom-defined opening (110, 120, 130) for each of the measuring horns, a switching device (111, 121, 131) anchored in the metal structure for each of the measuring horns and moat-like channels (104, 114, 124, 134) provide around each opening (100, 110, 120, 130) in the metal structure, to isolate electromagnetically each horn in relation to each other horn.