A radio telephone with high antenna efficiency

H - Electricity – 01 – Q

Patent

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Details

H01Q 1/24 (2006.01) H01Q 17/00 (2006.01) H04B 1/38 (2006.01)

Patent

CA 2267770

A radio telephone, preferably intended for cellular telecommunication, has an apparatus housing (20) and at least one antenna (21), which is mounted to or in connection with the apparatus housing for performing the wireless communication of the radio telephone by transmitting and receiving radiofrequent electromagnetic waves in a given wavelength range. A current-reducing means (30, 31) is mounted to the apparatus housing (20) between the antenna (21) and a side (23) of the radio telephone, which during normal use faces a human user (1). The means has conductive as well as dielectric properties and is arranged to reduce or eliminate electric currents present in and/or on the apparatus housing (20) between the antenna (21) and said side (23) of the radio telephone.

L'invention concerne un radiotéléphone destiné de préférence aux télécommunications cellulaires et comportant un boîtier d'appareil (20) et au moins une antenne (21), cette antenne étant montée sur le boîtier d'appareil ou en connexion avec lui et permettant les communications sans fil du radiotéléphone par transmission et réception d'ondes électromagnétiques en radiofréquence, dans une gamme de longueurs d'ondes donnée. Un réducteur de courant (30, 31) est monté sur le boîtier d'appareil (20), entre l'antenne (21) et le côté (23) du radiotéléphone qui, en utilisation normale, se trouve en face de l'usager (1). Ce réducteur, doté de propriétés aussi bien conductrices que diélectriques, est disposé de façon à réduire, voire à éliminer, les courants électriques présents dans le boîtier d'appareil (20) et/ou sur celui-ci, entre l'antenne (21) et ledit côté (23) du radiotéléphone.

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