Abstract: A reflector for a base station antenna comprises: a body; and at least one slot provided in the body, where the at least one slot is configured for forming at least one stub-type filtering structure in the body. The stub-type filtering structure is configured for at least partially inhibiting an induced current in the body within an operating frequency band of a radiating element mounted behind the reflector.

Abstract: The present disclosure relates to a radiating element, which includes: a dipole arm configured to emit first electromagnetic radiation within a pre-determined first operating frequency band; and a parasitic radiator, configured such that a first induced current induced on the parasitic radiator within a second operating frequency band at least partially cancels a second induced current induced on the dipole arm within the second operating frequency band. In addition, the present disclosure relates to a base station antenna, including: a first radiating element array, configured to emit first electromagnetic radiation within a pre-determined first operating frequency band, and at least a part of first radiating elements in the first radiating element array is constructed as radiating elements according to the present disclosure; a second radiating element array, configured to emit second electromagnetic radiation within a pre-determined second operating frequency band.

Abstract: The present disclosure relates to a phase shifter assembly comprising a phase shift circuit and a dielectric assembly having at least one dielectric element movable relative to the phase shift circuit for phase shifting, wherein the at least one dielectric element is disposed at a set distance from the phase shift circuit to form a gap between the at least one dielectric element and the phase shift circuit. In addition, the present disclosure also relates to a cavity phase shifter and a base station antenna.

Abstract: A radiating element for a base station antenna comprises a feed stalk printed circuit board and a dipole radiator printed circuit board mounted on the feed stalk printed circuit board. The feed stalk printed circuit board includes a first ground line that includes a first integrated parallel LC circuit, a second ground line that includes a second integrated parallel LC circuit, a first signal trace that extends through an opening in the dipole radiator printed circuit board, and a second signal trace.

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.

Abstract: The present disclosure relates to a base station antenna. comprising: a reflector: a first frequency band radiating element located on the front side of the reflector; and a feed board located on the front side of the reflector. the feed board being configured to feed the first frequency band radiating element, in which. a resonant circuit in a grounding path of the first frequency band radiating clement is formed on the feed board, and the resonant circuit is configured to at least suppress current within a second frequency band different from the first frequency band (FIG. 2a).

Abstract: A radiating element for a base station antenna comprises a feed stalk printed circuit board, a coupling printed circuit board mounted on a distal end of the feed stalk printed circuit board, the coupling printed circuit board including a plurality of metal pads, and a metal radiator that is capacitively coupled to the coupling printed circuit board and that forms at least part of a first radiator and a second radiator, the metal radiator comprising a monolithic metal plate that includes at least one opening.

Abstract: A connection assembly for an antenna includes a printed circuit board (PCB) and a radiating element connected to the PCB, where the radiating element includes a feed stalk and a radiator mounted on the feed stalk and the radiating element is mounted on the PCB through the feed stalk. A transmission trace is provided on the PCB, and a soldering area for electrically connecting the transmission trace to the feed stalk is provided on the PCB. An opening for receiving the feed stalk of the radiating element is provided on the PCB, where the feed stalk extends, and a feed line is provided on the feed stalk, where the feed line is configured to be soldered to the soldering area. The connection assembly further includes a ground structure, which is electrically connected to a ground metal layer that is at least partially arranged on two sides of the transmission trace.

Abstract: The present disclosure relates to a radiating element for a base station antenna, including: a feeding balun; a radiator mounted at a top of the feeding balun, configured to emit an electromagnetic radiation within an operating frequency band of the radiating element; and an artificial magnetic conductor (AMC) structure mounted below the radiator, configured to enable the electromagnetic radiation within the operating frequency band to be in-phase reflected, where a distance between the AMC structure and a bottom of the radiator is less than 1/10 of a height of the feeding balun. The present disclosure further relates to a base station antenna.

Abstract: A base station antenna comprises a radiating element that includes a feed stalk and a radiator mounted on the feed stalk; a phase shifter assembly that includes a phase shifter cavity that has holes corresponding to a location of the feed stalk on a wall proximate the feed stalk; and a phase shift circuit mounted within the phase shifter cavity, where the feed stalk is fixed relative to the phase shift circuit and a first conductor feature of the feed stalk is directly electrically connected to a second conductor feature of the phase shift circuit by passing through the through holes.

Abstract: A phase shifter assembly comprises a first housing that has first and second cavities that are arranged side by side in the horizontal direction or the first cavity and second cavity are arranged perpendicular to each other in the forward direction. The assembly further comprises a first transmission line that is configured to feed radiating elements with an RF signal in a first polarization direction, where a first line portion of the first transmission line is mounted within the first cavity and a second line portion of the first transmission line is mounted within the second cavity.

Abstract: A multi-band antenna includes a first column of radiating elements that are configured to operate in a first operating frequency band mounted on a reflecting plate; a second column of radiating elements that are configured to operate in a second operating frequency band mounted on the reflecting plate; a first fence and a second fence located on both sides of the reflecting plate that extend forward from the reflecting plate, where the first and second columns of radiating elements are arranged in between the first and second fences, the first fence and the second fence respectively comprise a frequency selective surface with a passband and a stopband, the passband covers at least the first operating frequency band, and the stopband covers at least the second operating frequency band.

Abstract: A connection assembly for an antenna includes a printed circuit board and a coaxial cable connected to the printed circuit board. A transmission trace and a solder pad are provided on the printed circuit board. An opening for receiving an end portion of the coaxial cable is also provided in the printed circuit board, and an exposed outer conductor of the end portion extends into the opening, and an exposed inner conductor reaches the solder pad. The connection assembly further includes a ground structure, which is electrically connected to a ground metal layer on a second surface of the printed circuit board, and the ground structure is at least partially arranged on both sides of the exposed inner conductor and/or the exposed outer conductor.

Abstract: A radiating element includes a feed stalk printed circuit board that comprises first and second RF transmission lines, a first dipole radiator that is coupled to the first RF transmission line and a second dipole radiator that is coupled to the second RF transmission line. The first dipole radiator comprises first and second dipole arms, and the second dipole radiator comprises third and fourth dipole arms. A first amount of coupling between the first dipole arm and the third dipole arm exceeds a second amount of coupling between the first dipole arm and the fourth dipole arm.

Abstract: Radiating elements comprise a dielectric support, first through fourth sheet metal dipole arms on the dielectric support, and a feed stalk printed circuit board. The feed stalk printed circuit board includes a first RF transmission line that has a first signal conductor that is coupled to the first sheet metal dipole arm through at least a first capacitive connection and a first ground conductor that is coupled to the second sheet metal dipole arm through at least a second capacitive connection and a second RF transmission line that has a second signal conductor that is coupled to the third sheet metal dipole arm through at least a third capacitive connection and a second ground conductor that is coupled to the fourth sheet metal dipole arm through at least a fourth capacitive connection.

Abstract: An antenna includes a reflector, a radiating element extending forwardly of the reflector, and a director positioned forwardly of the radiating element. The director includes a plurality of passive impedance elements that provide frequency-dependent reactances to currents induced therein responsive to electromagnetic radiation generated by the radiating element. The plurality of passive impedance elements include: (i) a primary capacitive element, (ii) a first series LC circuit having a first inductor therein electrically connected to a first portion of the primary capacitive element, and (iii) a second series LC circuit having a second inductor therein electrically connected to a second portion of the primary capacitive element.

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: An antenna includes a reflector, a radiating element extending forwardly of the reflector, and a director positioned forwardly of the radiating element. The director includes a plurality of passive impedance elements that provide frequency-dependent reactances to currents induced therein responsive to electromagnetic radiation generated by the radiating element. The plurality of passive impedance elements include: (i) a primary capacitive element, (ii) a first series LC circuit having a first inductor therein electrically connected to a first portion of the primary capacitive element, and (iii) a second series LC circuit having a second inductor therein electrically connected to a second portion of the primary capacitive element.

Abstract: A multi-band antenna includes a reflector that provides a ground plane, a first array of first radiating elements, each of the first radiating elements located on a front side of the reflector and configured to emit first electromagnetic radiation in a low frequency band, a second array of second radiating elements, each of the second radiating elements located on the front side of the reflector and configured to emit second electromagnetic radiation in a high frequency band, and an artificial magnetic conductor (AMC) plane that is located between the reflector and a radiator of the first radiating element and between the reflector and a radiator of the second radiating element. The AMC plane is configured to reflect the first electromagnetic radiation substantially in phase and to reflect the second electromagnetic radiation substantially in antiphase.

Abstract: A base station antenna comprises first and second RF ports, first and second columns of radiating elements that each extend in a longitudinal direction, and a power coupling circuit. A first radiating element in the second column is coupled to the first RF port via the power coupling circuit, and the phase of the RF signal fed to the first radiating element in the second column is not advanced as compared to the phase of the RF signal fed to the first radiating element in the first column. A second radiating element in the first column is coupled to the second RF port via the power coupling circuit, and the phase of the RF signal fed to the second radiating element in the first column is not advanced as compared to the phase of the RF signal fed to the second radiating element in the second column.