Abstract: A base station antenna comprises a reflector; a phase shifter that includes a phase shifter printed circuit board; and a radiating element that includes at least one feed stalk and a radiator mounted on the feed stalk forwardly of the reflector. The feed stalk is mounted directly on the phase shifter printed circuit board.

Abstract: The present invention relates to base station antennas having remote electronic tilt capabilities. Actuators for multiple phase shifters are described herein. An actuator may include a motor, a linkage drive system including a plurality of drive mechanisms for driving mechanical linkages of multiple phase shifters, a linkage selection system that is configured to selectively connect the motor to a selected one of the drive mechanisms of the linkage drive system. The linkage selection system may include a support seat, a carrier disposed on the support seat, and a movement transmission mechanism.

Abstract: The present disclosure relates to a support device for a phase shifter for a base station antenna. The support device includes a support plate suitable for fixation of a main printed circuit board of the phase shifter. The support plate includes a plate-shaped body and at least one support leg located at a lower portion of the body. At least one said support leg extends along a direction perpendicular to the body and is located on one side of the body, so that the support plate can be arranged in the base station antenna in a first orientation by at least one said support leg, or arranged in the base station antenna in a second orientation by the body itself according to layout requirements. The present disclosure also relates to an assembly for a phase shifter for a base station antenna and a method for soldering a coaxial cable to a phase shifter for a base station antenna.

Abstract: The present disclosure relates to an inclinometer for base station antennas, wherein the inclinometer is configured to be mounted to the base station antenna, and comprises: a movable weight configured to move to and stay at the force balance position in dependence on the mechanical tilt of the base station antenna under the action of gravity of the weight; an indicator coupled to the movement of the weight; and a plurality of graduations used in cooperation with the indicator for reading the mechanical tilt of the base station antenna. With the aid of this inclinometer, the mechanical tilt of the base station antenna can be easily and intuitively obtained.

Abstract: An actuator gearbox includes a drive shaft including a plurality of gear linkages that are spaced apart along the drive shaft, and a plurality of output shafts adjacent respective ones of the plurality of gear linkages. Each of the gear linkages includes a fixed gear coupled to one of the plurality of output shafts and a moving gear that is slideably coupled to the drive shaft. A bias spring is coupled to the moving gear to urge the moving gear out of engagement with the fixed gear. The mechanical switch moves the moving gear into engagement with the fixed gear on the output shaft adjacent the linkage to thereby cause the output shaft to rotate in response to rotation of the drive shaft.

Abstract: The present disclosure has disclosed a base station antenna comprising an antenna core provided with an antenna base at the bottom thereof and provided with an antenna bracket at the top thereof; and a radome sleeved over the antenna core. The radome includes a top wall and a side wall that protrudes downward from the top wall. The antenna core and the radome are connected together by a fixed connection portion located near a bottom end of the radome and a floating connection portion located near a top end of the radome. The floating connection portion fixes a position of the radome on the antenna core in a horizontal direction and allows the radome to float relative to the antenna core in a vertical direction by cooperating the antenna bracket with the top wall of the radome or the side wall at the top of the radome.

Abstract: An actuator gearbox includes a drive shaft including a plurality of gear linkages that are spaced apart along the drive shaft, and a plurality of output shafts adjacent respective ones of the plurality of gear linkages. Each of the gear linkages includes a fixed gear coupled to one of the plurality of output shafts and a moving gear that is slideably coupled to the drive shaft. A bias spring is coupled to the moving gear to urge the moving gear out of engagement with the fixed gear. The mechanical switch moves the moving gear into engagement with the fixed gear on the output shaft adjacent the linkage to thereby cause the output shaft to rotate in response to rotation of the drive shaft.

Abstract: The present invention relates to base station antennas having remote electronic tilt capabilities. Actuators for multiple phase shifters are described herein. An actuator may include a motor, a linkage drive system including a plurality of drive mechanisms for driving mechanical linkages of multiple phase shifters, a linkage selection system that is configured to selectively connect the motor to a selected one of the drive mechanisms of the linkage drive system. The linkage selection system may include a support seat, a carrier disposed on the support seat, and a movement transmission mechanism.

Abstract: The present disclosure has disclosed a base station antenna comprising an antenna core provided with an antenna base at the bottom thereof and provided with an antenna bracket at the top thereof; and a radome sleeved over the antenna core. The radome includes a top wall and a side wall that protrudes downward from the top wall. The antenna core and the radome are connected together by a fixed connection portion located near a bottom end of the radome and a floating connection portion located near a top end of the radome. The floating connection portion fixes a position of the radome on the antenna core in a horizontal direction and allows the radome to float relative to the antenna core in a vertical direction by cooperating the antenna bracket with the top wall of the radome or the side wall at the top of the radome.

Abstract: The present invention discloses a phase shifter, which comprises at least two layered chambers, wherein, in each chamber two parallel-arranged metal guide sleeves and a U-shaped conductor are set, the two free ends of the U-shaped conductor are respectively inserted into the two metal guide sleeves, and the free ends of the U-shaped conductor move relatively to the metal guide sleeves so as to change the phase of the output signal of the phase shifter. Using the phase shifter provided in the present invention enables the phase control of each radiating element to be very convenient. Furthermore, the phase shifter is simple in structure and inexpensive.