Wireless local loops including horizontally polarized antennas

H - Electricity – 04 – Q

Patent

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Details

H04Q 7/20 (2006.01) H01Q 1/24 (2006.01) H01Q 9/04 (2006.01) H04B 7/185 (2006.01)

Patent

CA 2336636

Wireless local loops include primarily non-vertically polarized antennas. Preferably, the wireless local loop includes horizontally polarized antennas. By using primarily non-vertically polarized antennas in the WLL, interference between cellular, satellite and/or other radiotelephone communications systems, which employ predominantly vertically polarized antennas, can be reduced and preferably minimized. Conventional cellular and satellite radiotelephone systems use vertically polarized transmissions due to the vertical nature of the orientation of the mobile antennas on vehicles and/or mobile radiotelephones. However, in a WLL, with its fixed wireless telecommunications, there is no need to use vertically oriented antennas. Accordingly, to reduce interference, antennas that are primarily non- vertically polarized are used.

Des lignes d'abonnés sans fil comprennent essentiellement des antennes polarisées non verticalement. De préférence, la ligne d'abonné sans fil comprend des antennes polarisées horizontalement. Par l'utilisation d'antennes polarisées essentiellement non verticalement dans la ligne d'abonné sans fil, on peut réduire et de préférence minimiser les interférences entre les systèmes de communication cellulaire, par satellite et/ou autre système téléphonique utilisant des antennes polarisées essentiellement verticalement. Les systèmes radiotéléphoniques classiques cellulaires et par satellite utilisent des transmissions polarisées verticalement du fait de la nature verticale de l'orientation des antennes mobiles sur des véhicules et/ou des radiotéléphones mobiles. Toutefois, dans une ligne d'abonné sans fil, avec ses télécommunications sans fil fixes, il n'est pas nécessaire d'utiliser des antennes orientées verticalement. Par conséquent, pour réduire les interférences, on utilise des antennes polarisées essentiellement non verticalement.

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