Antennas alignment method and device

H - Electricity – 01 – Q

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H01Q 1/12 (2006.01) H01Q 3/08 (2006.01)

Patent

CA 2448028

Radio antennas are aligned with each other for the creation of a fixed radio link, by temporarily mounting a powered actuator on an antenna forming one end of the link, the actuator being arranged to adjust the alignment of the antenna, controlling the movement of the actuator over a range of alignments, measuring the variations in the properties of a signal transmitted over the link as the actuator is moved, identifying an optimum actuator position, and locking the actuator in the optimum position. By using a powered antenna, it is possible to control the alignment of several antennas from a single convenient location. Once the antenna has been secured in the selected position the powered actuator may be recovered for use elsewhere.

Selon cette invention, on cale des antennes radio en vue de créer une liaison radio fixe en montant provisoirement un actionneur mécanique sur une antenne extrémité de liaison, l'actionneur étant disposé de façon à orienter l'antenne ; en contrôlant le mouvement de l'actionneur sur une plage d'orientations, en mesurant les variations des propriétés d'un signal émis sur la liaison pendant le mouvement de l'actionneur, en identifiant une position optimale de l'actionneur et en bloquant l'actionneur dans la position optimale. En utilisant une antenne motorisée, il est possible de télécommander le calage de plusieurs antennes depuis un point unique accessible. Lorsque l'antenne a été bloquée dans la position sélectionnée, l'actionneur mécanique peut être démonté pour un usage ultérieur.

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