Antenna assembly comprising whip antenna and helical antenna...

H - Electricity – 01 – Q

Patent

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Details

H01Q 1/08 (2006.01) H04N 9/28 (2006.01) H04N 17/02 (2006.01) H04N 17/04 (2006.01)

Patent

CA 2241370

An antenna assembly (30) comprising a whip antenna (11) and an antenna top (12) including a helical antenna (18) and mounted on a top end of the whip antenna. The antenna assembly is slidably mounted on a Cellular telephone set (20) and movable between an extended position and a retracted position. The antenna assembly is further provided with a conductor sleeve (32) connected to the helical antenna. In the retracted position, the helical antenna is brought into electrical connected to an electrical circuitry in the telephone set through the conductor sleeve. The conductor sleeve is rotatably mounted but prevented from axial movement on a dielectric joint member (31) fixed on the top end of the whip antenna, but is fixed to the antenna top so that the antenna top is rotatably mounted on the joint member. The antenna top is mounted on the joint member but freely rotated on the joint member.

Ensemble d'antenne (30) comprenant une antenne-fouet (11) dont l'extrémité supérieure est surmontée d'un embout (12) doté d'une antenne hélicoïdale (18). L'ensemble d'antenne coulissant se fixe à un téléphone cellulaire (20) et peut passer d'une position déployée à une position rétractée. Il comporte en outre un manchon conducteur (32) connecté à l'antenne hélicoïdale. En position rétractée, l'antenne hélicoïdale est reliée, par le biais du manchon conducteur, à un circuit électrique situé dans le téléphone. Le manchon conducteur est monté, de façon à pouvoir pivoter sans qu'il puisse se déplacer en direction axiale, sur un raccord diélectrique (31) fixé sur l'extrémité supérieure de l'antenne-fouet. Le manchon conducteur est raccordé à l'embout de telle sorte que ce dernier puisse se fixer au raccord et pivoter. Ainsi, l'embout est monté sur le raccord et peut pivoter librement sur ce dernier.

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