Abstract: The present disclosure has disclosed an antenna mounting device configured to collectively mount a plurality of base station antennas on a mast of a communication tower. The antenna mounting device is substantially in the shape of a polygon, and the mast is disposed at a center of the polygon. The antenna mounting device comprises: a plurality of brackets, which are elongated and include a head bracket, at least one intermediate bracket and a tail bracket attached sequentially; and a bracket fastening mechanism which is disposed between two adjacent ends of the head bracket and an adjacent intermediate bracket, or disposed between two adjacent ends of the adjacent intermediate brackets, or disposed between two adjacent ends of the tail bracket and the adjacent intermediate bracket, and which is configured to move two adjacent ends of the adjacent brackets from a position away from each other to a position close to each other.

Abstract: According to one embodiment, a connector fixing structure includes a printed circuit board assembly, and a base to which the printed circuit board assembly is attached. The printed circuit board assembly has a connector mounted on a printed circuit board, and a connector panel attached to the printed circuit board. The connector has a connector main body, a front flange projecting from the connector main body, and a rear flange projecting from the connector main body. The connector panel has a provisional fixing portion which is inserted between the front flange and the rear flange and provisionally fixes the connector to the connector panel. The base has a fixing portion which is inserted between the rear flange and the connector panel, thereby brings the front flange into contact with the connector panel and fixes the connector to the base, when the printed circuit board assembly is attached to the base.

Abstract: According to one embodiment, a connector fixing structure includes a printed circuit board assembly, and a base to which the printed circuit board assembly is attached. The printed circuit board assembly has a connector mounted on a printed circuit board, and a connector panel attached to the printed circuit board. The connector has a connector main body, a front flange projecting from the connector main body, and a rear flange projecting from the connector main body. The connector panel has a provisional fixing portion which is inserted between the front flange and the rear flange and provisionally fixes the connector to the connector panel. The base has a fixing portion which is inserted between the rear flange and the connector panel, thereby brings the front flange into contact with the connector panel and fixes the connector to the base, when the printed circuit board assembly is attached to the base.