Antennae

H - Electricity – 01 – Q

Patent

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Details

H01Q 13/08 (2006.01) H01Q 1/24 (2006.01) H01Q 1/27 (2006.01) H04B 1/38 (2006.01)

Patent

CA 2061033

An antenna system for portable electronic apparatus, particularly for the handset of a cordless telephone system, and comprising two antenna, a first (shown) mounted on a flap (2) and comprising a groundplane 5 and active monopole 4 fed by a coaxial feed 6 from electronic circuitry (not shown) in the main section of the handset 1. The flap is pivotally connected to the main section of the housing 1, and is folded down against the main section when not in use. Another similar antenna is fitted in the main section, and both antennae are connected to the transceiver circuitry via the same node. The two antennae are specially designed so as to introduce deliberate mismatch so as to provide an effective switching system between the two antenna without the need for separate circuit elements.

L'invention est une antenne pour appareils électroniques portatifs, particulièrement pour les combinés de téléphone sans fil. Cette antenne est constituée de deux éléments, un premier (illustré) monté sur un volet (2) et comportant un tapis de sol 5 et un monopôle actif 4 alimenté par un conducteur coaxial 6 à partir de circuits (non illustrés) faisant partie de la section principale du combiné 1. Le volet est monté sur la section principale du boîtier 1 au moyen de charnières et repose sur la section principale quand il n'est pas en fonction. Une autre antenne similaire est incorporée à la section principale et les deux antennes sont connectés aux circuits de l'émetteur-récepteur par l'intermédiaire du même noeud. Ces deux antennes sont conçues de façon à introduire une inadaptation permettant d'obtenir un système de commutation efficace entre elles sans nécessiter l'utilisation de circuits distincts.

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