Electronic system of the antenna for a cellular network of radiotelephone combining of the fixed stations for mobile stations and a portable stations

摘要

The system comprises, in the fixed stations, a set of antennas 1, 2.. 8 Constructing a sectorization of the space a cover, a conversion circuit and multiplexing 100 of the signals coming from the antennae in the - strips which do not overlap, a cable of descent 20 for the transmission of the multiplexed signal to the circuits of the reception and in the reception circuits, a circuit for the transposition demultiplexing and 200, by a control circuit of the selection and connects the entrees of the receptions of the station, the selection circuit 300 determinant for each frequency of the band under - transposed in which the signal has the highest level, the receiver tuned to the frequency of reception since it is then supplied by the signal of this band under - retransposee by the circuit of demultiplexing and transposing. The set of antennas and the corresponding circuits may be double and each receiver then operates in diversity real. / p & & p & application, in particular, the arrays comprising portable stations which may radiate as a low power.