Sectorized multi-function cellular radio communication system

Details Sectorized multi-function cellular radio communication system Sectorized multi-function cellular radio communication system

H - Electricity

04

Q

H04Q 7/36 (2006.01) H01Q 1/24 (2006.01) H01Q 3/26 (2006.01) H01Q 21/06 (2006.01) H01Q 21/28 (2006.01) H04N 7/173 (2006.01) H04N 7/20 (2006.01) H04Q 7/20 (2006.01) H04H 1/00 (2006.01)

Patent

CA 2185711

The preferred embodiment of the present invention is a communications apparatus which includes a first transmitting antenna array (15A) having a transmitting antenna (16) which is dedicated to serve only a first sector (12). Similarly, a second transmitting antenna array (17A) having a transmitting antenna (18) is dedicated to serve only a second sector (14). Each of the transmitting antenna arrays (15A, 17A) have a beamwidth (19) of generally less than fifteen degrees. Both the first and the second transmitting antenna arrays (15A, 17A) emanate shaped beams which are alternately polarized to ensure the isolation of beams that serve adjacent sectors.

La présente invention concerne, selon le mode de réalisation préféré, un dispositif de communications comprenant une première antenne de transmission réseau (15A) comportant une antenne de transmission (16) qui ne dessert qu'un premier secteur (12). De la même manière, une deuxième antenne de transmission réseau (17A) comportant une antenne de transmission (18) ne dessert qu'un deuxième secteur (14). Chacune des antennes de transmission réseau (15A, 17A) comporte une largeur de faisceau (19) généralement inférieure à 15 degrés. Les deux antennes réseau (15A, 17A) émettent des faisceaux mis en forme qui sont polarisés en alternance pour assurer l'isolement de faisceaux desservant des secteurs adjacents.

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