| 主权项 |
1. A distributed amplification device, intended for a communications payload of a satellite, comprising a distributed amplification reservoir for amplifying a first plurality of a first integer number p greater than or equal to 2 of radiofrequency amplifier input signals, received by a first input port of input terminals, mutually identical to within a phase, into a second plurality of p amplified RF signals supplied by a second output port of output terminals, associated respectively with the input terminals of the first port according to the same order, the distributed amplification reservoir comprising
a set of a second integer number n, greater than p and less than or equal to 2p+1, of amplifiers arranged electrically in parallel and respectively forming internal amplification pathways, mutually insulated electromagnetically and equalized, and respectively numbered by a row index varying from 1 to the second integer number n, the set of the n amplifiers being composed of a first series of p nominal radiofrequency amplifiers and of a second series of n-p back-up amplifiers, an input redundancy ring, formed by a first array of four-pole rotary switches, and an output redundancy ring, formed by a second array of four-pole rotary switches, the input and output redundancy rings being connected respectively between the first input port and a third port of input terminals of the set of the n amplifiers and between a fourth port of output terminals of the set of the n amplifiers and the second output port, to implement a family of routing configurations comprising a nominal routing configuration which uses the p nominal amplifiers of the first series as active amplifiers, and one or more back-up routing configurations, which each use at least one of the n-p back-up amplifiers out of the p active amplifiers selected from the set of the n amplifiers, the distributed amplification device wherein:
the input and output redundancy rings use similar propagation conditions; andthe input and output redundancy rings are topologically and geometrically configured such that each routing configuration of the family comprises a set of p independent distributed amplification paths, each amplification path individually including an input terminal of the first port, the output terminal of the second port associated with the input terminal of the first, an active amplifier and its row number, first passive links connected in series and passing through at least three rotary switches of the input redundancy ring and linking the input terminal of the first port to the input terminal of the active amplifier, and second passive links connected in series and passing through at least one switch of the output redundancy ring and linking the output terminal of the active amplifier to the output terminal of the second port; and the electrical lengths of all the paths of one and the same routing configuration of the family are equal. |
