Beamforming using a backplane and passive antenna element

Details Beamforming using a backplane and passive antenna element Beamforming using a backplane and passive antenna element

H - Electricity

01

Q

H01Q 1/24 (2006.01) H01Q 19/10 (2006.01) H01Q 19/32 (2006.01)

Patent

CA 2476558

An active antenna element (120) to transmit and/or receive RF (Radio Frequency) signals is positioned in relation to a backplane (130) that reflects RF signals. One or more passive antenna elements (110, 112) can be disposed on a similar side of the backplane as the active antenna element. Settings of the one or more passive antenna elements are adjusting to produce an input/output beam pattern that varies depending on whether the at least one passive antenna element is reflective or transmissive. Based on this technique, an RF input output beam pattern of an antenna assembly including the backplane, active antenna element and passive antenna elements can be controlled for better reception and transmission of RF signals.

Selon l'invention, un élément d'antenne passive, destiné à émettre et/ou à recevoir des signaux RF (radiofréquence), est placé par rapport à une face arrière qui réfléchit les signaux RF. Un ou plusieurs éléments d'antenne passive peuvent être disposés d'un même côté de la face arrière que l'élément d'antenne active. Les réglages du ou desdits éléments d'antenne passive sont ajustés pour produire un diagramme de faisceau d'entrée/sortie qui varie selon que le ou les élément(s) d'antenne passive est/sont rétroréfléchissant(s) ou transmissif(s). Sur la base de ladite technique, un diagramme de faisceau d'entrée/sortie RF d'un ensemble antenne comprenant la face arrière, un élément d'antenne active et des éléments d'antenne passive peut être commandé pour une meilleure réception et transmission de signaux RF.

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