Antenna assembly for radiotelephonic device

H - Electricity – 01 – Q

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H01Q 3/00 (2006.01) H01Q 1/08 (2006.01) H01Q 1/24 (2006.01) H01Q 21/28 (2006.01) H04B 1/38 (2006.01) H04B 7/185 (2006.01)

Patent

CA 2250245

An antenna assembly, and an associated method, facilitates communication of a radiotelephone operable in a satellite communication system, such as a satellite-cellular communication system. A patch antenna is rotatably coupled to a radiotelephonic housing of the radiotelephone. The patch antenna exhibits circular polarization characteristics, best to detect and to transmit communication signals to a satellite-based transceiver. By positioning patch antennas at opposing sides of the radiotelephone, down-link signals transmitted to the radiotelephone are detectable irrespective of the orientation of the radiotelephone.

Ensemble antenne et procédé associé améliorant la capacité de communication d'un radiotéléphone fonctionnant dans un réseau de télécommunications par satellite, tel qu'un système de télécommunications cellulaire par satellite. Une antenne à plaque est accouplée rotative au boîtier radiotéléphonique du radiotéléphone. Cette antenne à plaque présente des caractéristiques de polarisation circulaire optimisant la détection et la transmission de signaux de télécommunications vers un émetteur-récepteur par satellite. Le positionnement d'antennes à plaque au niveau des côtés opposés du radiotéléphone permet de détecter des signaux de liaison descendante transmis au radiotéléphone indépendamment de l'orientation de ce dernier.

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