Abstract: A method for controlling a movable object includes determining, based on current location information of an obstacle, whether the obstacle is located within a certain distance range from the movable object, and in response to determining that the obstacle is located within the certain distance range from the movable object: determining, based on the current location information of the obstacle, whether the obstacle meets a first distance criterion or a second distance criterion, to obtain a determination result, and performing a first adjustment or a second adjustment on one or more movement characteristics of the movable object based on the determination result. The first adjustment is different from the second adjustment. One of the first adjustment and the second adjustment includes changing a movement direction of the movable object from a first direction to a second direction. The first direction is opposite to the second direction.

Abstract: Base station antennas include an externally accessible active antenna module releasably coupled to a recessed segment that is over a chamber in the base station antenna and that is longitudinally and laterally extending along and across a rear of a base station antenna housing. The base station antenna housing has a passive antenna assembly that cooperates with the active antenna module.

Abstract: A method for controlling a movable object includes obtaining current location information of an obstacle while the movable object tracks a target, determining whether the obstacle is located in a reactive region relative to the movable object based on the current location information of the obstacle. In response to determining that the obstacle is located in the reactive region, the method further includes determining, based on the current location information of the obstacle, whether the obstacle is located in a first sub-region or a second sub-region of the reactive region, where an area of the second sub-region is smaller than an area of the first sub-region; in response to determining that the obstacle is located in the first sub-region, reducing an acceleration of the movable object; and in response to determining that the obstacle is located in the second sub-region, reducing a velocity of the movable object.

Abstract: Base station antennas, and components for base station antennas, such as reflectors, feeder components, frames, and column components. A base station antenna may include a reflector; a first radiator located at the front side of the reflector; mutually parallel first and second ground plates extending backward from the reflector and basically perpendicular to the reflector; and a first conductor strip extending between the first and second ground plates and configured to feed power to the first radiator. The first conductor strip and the first and second ground plates may be configured as a first stripline transmission line. The reflector and the first and second ground plates may be configured as one piece so that the reflector is grounded via the first and second ground plates without soldering.

Abstract: The present disclosure is directed to a radiator assembly for a base station antenna. The radiator assembly includes two dipoles arranged in a cross-over manner, each dipole includes two dipole arms having respective radiating surfaces. The radiator assembly further includes two feeding lines, each feeding line being associated with a respective one of the dipoles. The radiator assembly further includes an arm holder including a support structure for supporting the dipole arms and at least one feeding line holder configured to support at least one of the two feeding lines.

Abstract: A multi-band phase shifter assembly comprises: a first substrate; a first rotary wiper arm phase shifter, configured to phase shift a first RF signal in a first frequency band; a second rotary wiper arm phase shifter, configured to phase shift a second RF signal in a second frequency band; first filters, configured to pass the first RF signal while blocking the second RF signal, the input end of each first filter is connected to a corresponding output port of the first rotary wiper arm phase shifter; second filters, configured to pass the second RF signal while blocking the first RF signal, the input end of each second filter is connected to a corresponding output port of the second rotary wiper arm phase shifter; and a conductive structure, configured to electrically connect one input end of the first filters with one output end of the second filters.

Abstract: The present disclosure relates to a transmission mechanism for a base station antenna, and a base station antenna including the transmission mechanism.

Abstract: Base station antennas include an externally accessible active antenna module releasably coupled to a recessed segment that is over a chamber in the base station antenna and that is longitudinally and laterally extending along and across a rear of a base station antenna housing. The base station antenna housing has a passive antenna assembly that cooperates with the active antenna module.

Abstract: Base station antennas, and components for base station antennas, such as reflectors, feeder components, frames, and column components. A base station antenna may include a reflector; a first radiator located at the front side of the reflector; mutually parallel first and second ground plates extending backward from the reflector and basically perpendicular to the reflector; and a first conductor strip extending between the first and second ground plates and configured to feed power to the first radiator. The first conductor strip and the first and second ground plates may be configured as a first stripline transmission line. The reflector and the first and second ground plates may be configured as one piece so that the reflector is grounded via the first and second ground plates without soldering.

Abstract: The present disclosure is directed to a mounting bracket adapted for adjusting the downtilt of an antenna. The mounting bracket includes a first member and a second member. The first member is coupled to the second member at one end via a first pair of securing features and is coupled to an antenna mounting bracket at an opposing end via a second pair of securing features. The first member is configured to rotate about the first and second pairs of securing features relative to the second member and antenna mounting bracket, respectively.

Abstract: A method includes: when it is determined that a user's gesture of moving an electronic device is a preset gesture, obtaining a capacitance measurement value sensed at a contact in a preset area of the touchscreen, where the preset area is located in a peripheral edge area of the touchscreen; and when the obtained capacitance measurement value meets a first preset condition, controlling display status switching of the touchscreen.

Abstract: A radiator assembly for a base station antenna includes two dipoles arranged in a cross-over manner, each dipole including two dipole arms, and two feeding lines, each feeding line being associated with a respective one of the dipoles. Each dipole arm is integrally formed of sheet metal, and includes a radiating surface and a leg projecting from the radiating surface at an angle with the radiating surface, where the leg is electrically grounded.

Abstract: Base station antennas include an externally accessible active antenna module releasably coupled to a recessed segment that is over a chamber in the base station antenna and that is longitudinally and laterally extending along and across a rear of a base station antenna housing. The base station antenna housing has a passive antenna assembly that cooperates with the active antenna module.

Abstract: The present disclosure relates to a frame assembly for a base station antenna, comprising: a reflector; a cavity element mounted on a rear end of the reflector, the cavity element comprising a front panel facing the reflector, a first side panel and a second side panel spaced apart from each other extending rearwardly from the front panel, wherein a first cavity for receiving a first phase shift assembly is formed by the front panel, the first side panel and the second side panel, and a channel is provided on the front panel for feeding ends of the first phase shift assembly. In addition, the present disclosure also relates to a base station antenna and method for assembling a base station antenna.

Abstract: Base station antennas include an externally accessible active antenna module releasably coupled to a recessed segment that is over a chamber in the base station antenna and that is longitudinally and laterally extending along and across a rear of a base station antenna housing. The base station antenna housing has a passive antenna assembly that cooperates with the active antenna module.

Abstract: The present disclosure relates to a phase shifter assembly and a base station antenna, wherein the phase shifter assembly includes: a first printed circuit board; a first wiper arm, which is rotatably coupled to the first printed circuit board; a second printed circuit board; and a second wiper arm, which is rotatably coupled to the second printed circuit board; wherein the first printed circuit board and the second printed circuit board are arranged at a non-zero angle.

Abstract: Base station antennas include an externally accessible active antenna module releasably coupled to a rear of the housing using a field installable mounting system/kit with a mounting frame and active antenna module mounting brackets. The base station antenna housing has a passive antenna assembly that cooperates with the active antenna module.

Abstract: A phase shifter assembly, suitable for a base station antenna, includes a main printed circuit board with opposing first and second primary sides. The main printed circuit board has a plurality of radio frequency (RF) transmission paths on the first primary side and a plurality of RF transmission paths on the second primary side. The phase shifter assembly also includes a first wiper arm rotatably coupled to the main printed circuit board and electrically coupled to the plurality of transmission paths on the first primary side of the main printed circuit board; and a second wiper arm rotatably coupled to the main printed circuit board and electrically coupled to the plurality of transmission paths on the second primary side of the main printed circuit board. Rearwardly extending phase shifter assemblies that are oriented perpendicular to a plane defined by a reflector within a base station antenna are also provided.

Abstract: A base station antenna assembly includes: first and second reflectors, the first and second reflectors having first and second sides, being electrically conductive and being disposed generally parallel to each other to form a gap therebetween; a stripline printed circuit board (PCB) positioned in the gap between the first and second reflectors; a first PCB mounted on the first side of the first reflector; a second PCB mounted on the first side of the second reflector so that the second PCB is positioned in the gap; and at least one first radiating element mounted to a first side of the first reflector, the at least one first radiating element having first and second stalks extending through the first PCB, through the first reflector, through the stripline PCB, through the second PCB, and to the second reflector.

Abstract: A base station antenna includes: a reflector; a first radiator located at the front side of the reflector; an ground conductor located at the rear side of the reflector, the ground conductor forming a chamber with an opening forward; and a first stripline conductor mounted in the chamber configured to feed the first radiator, the first stripline conductor extending in a plane substantially parallel to the reflector; where the reflector and the ground conductor are configured such that the opening is capped by the reflector, and the reflector is grounded via the ground conductor, so that the first stripline conductor and the ground conductor and the reflector are configured as a first strip transmission line.