Abstract: An antenna rotation mechanism includes a bearing holder, a bearing, a first pressing member, a second pressing member, a plurality of first elastic arms and a plurality of second elastic arms. The bearing is disposed on an elastic fixing socket of the bearing holder. The first pressing member is disposed on first plane of the bearing and the second pressing member is disposed on second plane of the bearing. When the first pressing member abuts against the each first elastic arm along a first axial direction, the each first elastic arm provides a first radial thrust to the bearing, to force the bearing to move to an axle center. When the second pressing member abuts against the each second elastic arm along a second axial direction, the second first elastic arm provides a second radial thrust towards the bearing to force the bearing to move to the axle center.

Abstract: An antenna rotation mechanism includes a bearing holder, a bearing, a first pressing member, a second pressing member, a plurality of first elastic arms and a plurality of second elastic arms. The bearing is disposed on an elastic fixing socket of the bearing holder. The first pressing member is disposed on first plane of the bearing and the second pressing member is disposed on second plane of the bearing. When the first pressing member abuts against the each first elastic arm along a first axial direction, the each first elastic arm provides a first radial thrust to the bearing, to force the bearing to move to an axle center. When the second pressing member abuts against the each second elastic arm along a second axial direction, the second first elastic arm provides a second radial thrust towards the bearing to force the bearing to move to the axle center.

Abstract: A card-receiving device for containing a card comprises a chassis, a tray and a stopper. The tray is disposed on the chassis and moveable between a first position and a second position, wherein the card is disposed on the tray, and moves from the first position to the second position by the tray. When the tray moves to the second position from the first position, the stopper abuts and stops the card.

Abstract: A card-receiving device for containing a card comprises a chassis, a tray and a stopper. The tray is disposed on the chassis and moveable between a first position and a second position, wherein the card is disposed on the tray, and moves from the first position to the second position by the tray. When the tray moves to the second position from the first position, the stopper abuts and stops the card.