DISTRIBUTED FEEDING DEVICE FOR ANTENNA BEAMFORMING

摘要

A distributed feeding device for antenna beamforming comprises a first distributed feeding circuit comprising P inputs and N outputs, for producing a signal on each of its outputs with a phase shift which is substantially constant between two adjacent outputs, at least one frequency multiplexer connected to at least one input of the said first circuit, a number N of frequency demultiplexers each connected, by their input, to an output of the first circuit and a second distributed feeding means comprising a plurality of inputs, each connected to an output of one of the frequency demultiplexers, and a plurality of outputs, the second distributed feeding means comprising at least one second distributed feeding circuit comprising Q inputs and M outputs, for producing a signal on each output with a phase shift which is substantially constant between two adjacent outputs, the integers P, N, Q and M being equal or distinct.

主权项

1. A distributed feeding device for antenna beamforming, comprising a first distributed feeding circuit comprising P inputs and N outputs, P and N being two strictly positive integers, which is adapted for producing, when a signal is injected on a single of its inputs, a signal on each of its outputs with a phase shift which is substantially constant between two adjacent outputs, at least one frequency multiplexer connected to at least one input of the said first circuit, a number, equal to the number N of outputs of the said first circuit, of frequency demultiplexers each connected, by their input, to an output of the said first circuit and a second distributed feeding means comprising a plurality of inputs, each connected to an output of one of the said frequency demultiplexers, and a plurality of outputs, the said second distributed feeding means comprising at least one second distributed feeding circuit comprising Q inputs and M outputs, Q and M being two strictly positive integers, which is adapted for producing, when a signal is injected on a single of its inputs, a signal on each of its outputs with a phase shift which is substantially constant between two adjacent outputs, the integers P, N, Q and M being equal or distinct.