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: Reflector assemblies suitable for active antenna units and/or base station antennas are provided that include a reflector body and a lip extending about a perimeter of the reflector body. The reflector body can optionally include a plurality of fin structures extending about a least part of a perimeter of the reflector body. The fin structures and/or side walls of the reflector body can be directly exposed to environmental conditions during use. The fin structures, where used, can be shaped channel members that can be formed of sheet metal or provided as separate extruded or die cast members that can be coupled to the reflector body.

Abstract: RF transmission lines include a first printed circuit board that includes a first stripline transmission line and a first non-stripline transmission line that is electrically connected to the first stripline transmission line. a second printed circuit board that includes a second stripline transmission line and a second non-stripline transmission line that is electrically connected to the second stripline transmission line. a metal signal trace connector that electrically connects a first signal trace of the first non-stripline transmission line to a second signal trace of the second non-stripline transmission line, and an RF shielding cover that covers the metal signal trace connector.

Abstract: A multi-mode antenna includes a feed network including a cascaded arrangement of a first phase shifter and hybrid coupler pair, which is responsive to a radio frequency (RF) input feed signal, and a second phase shifter and hybrid coupler pair, which is responsive to an RF feed signal generated at a second output port of the first phase shifter and hybrid coupler pair. First, second and third arrays of radiating elements are provided. The first array is responsive to a RF feed signal derived from a first output port of the first phase shifter and hybrid coupler pair; the second array is responsive to an RF feed signal derived from a first output port of the second phase shifter and hybrid coupler pair; and the third array is responsive to an RF feed signal derived from a second output port of the second phase shifter and hybrid coupler pair.

Abstract: An impedance matching device includes a first dielectric substrate; a first transmission line circuit; a first conductive pad which extends toward the first transmission line circuit on the first dielectric substrate to at least partially vertically overlap the first transmission line circuit: a first reference potential layer; and a first matching load which is electrically connected to the first conductive pad and has a first resistance. An area where the first conductive pad vertically overlaps the first transmission line circuit has a size configured such that a load reactance associated with the first transmission line circuit is equal to or less than a predetermined threshold and an absolute value of a difference between a load resistance associated with the first transmission line circuit and the first resistance is equal to or less than a predetermined resistance threshold.

Abstract: An impedance matching device includes a first dielectric substrate; a first transmission line circuit; a first conductive pad which extends toward the first transmission line circuit on the first dielectric substrate to at least partially vertically overlap the first transmission line circuit: a first reference potential layer; and a first matching load which is electrically connected to the first conductive pad and has a first resistance. An area where the first conductive pad vertically overlaps the first transmission line circuit has a size configured such that a load reactance associated with the first transmission line circuit is equal to or less than a predetermined threshold and an absolute value of a difference between a load resistance associated with the first transmission line circuit and the first resistance is equal to or less than a predetermined resistance threshold.

Abstract: Radio frequency (RF) devices are provided. An RF device includes one or more resonators. The RF device includes an RF connector that is coupled to the resonator(s). Moreover, the RF device includes a printed circuit board that covers the resonator(s) and is coupled to the resonator(s) via the RF connector.

Abstract: An antenna assembly, which includes one or more radiating element arrays and at least one dielectric isolator for the one or more radiating element arrays, wherein, the dielectric isolator is configured to tune the phase of a coupling signal between the radiating elements so as to at least partially eliminate coupling interference between the radiating elements. As a result, the radiation pattern of the antenna can be improved. The present disclosure also provides a base station antenna having the antenna assembly.

Abstract: A low frequency band radiating element for a multiple frequency band cellular base station antenna comprises a dipole arm including a radiating portion and a first coupling portion and a dipole leg that includes a leg and a second coupling portion located at one end of the leg. The first coupling portion is removably connected to the second coupling portion. A thin metal sheet with a suitable electrical performance can be selected for the dipole arm, and a thick metal plate can be selected for a dipole leg so as to achieve mechanical strength.

Abstract: An antenna assembly is provided which includes: a feeder panel; an array of radiating elements mounted on the feeder panel; a plurality of metal tubes mounted to extend forwardly from the feeder panel, where at least a portion of radiating elements in the array of radiating elements are surrounded by at least four metal tubes spaced apart, respectively. In addition, a base station antenna including the antenna assembly may be provided. The antenna assembly is capable of effectively improving the cross-polarization performance of the base station antenna and improving the radiation boundary of the base station antenna.

Abstract: A low frequency band radiating element for a multiple frequency band cellular base station antenna comprises a dipole arm including a radiating portion and a first coupling portion and a dipole leg that includes a leg and a second coupling portion located at one end of the leg. The first coupling portion is removably connected to the second coupling portion.

Abstract: A radiating element for an antenna comprises at least one radiating arm having a first electrically conductive arm segment extending in a first direction and a second electrically conductive arm segment extending in a second direction and electrically connected to the first arm segment.

Abstract: The present disclosure relates to a base station antenna; the base station antenna comprises: a radio; a feed board and a radiating element array mounted on the feed board, where the radiating element array comprises a plurality of radiating elements, and each radiating element extends forward from the feed board; a radome arranged in front of the radiating element array; and a plurality of radome supporting members mounted on the radio and extending forward from the radio to the radome for supporting the radome.

Abstract: Radiating elements, antenna assemblies, and base station antennas including the same. For example, a radiating element is provided that includes a feed stalk and a radiator mounted on the feed stalk. The feed stalk includes a dielectric substrate, a first metal pattern printed on a first major surface of the dielectric substrate, and a second metal pattern printed on a second major surface of the dielectric substrate that is opposite the first major surface. The first metal pattern includes a first feed transmission line and a first feed welding region electrically connected to the first feed transmission line. The second metal pattern includes a second feed welding region electrically connected to the first feed welding region.

Abstract: A support piece comprises: a first support section configured in the shape of a plate, and a plurality of second support sections; every second support section in the plurality of second support sections is set on the outside of the first support section and is bent relative to the first support section; every second support section comprises at least one support structure. At least a portion of the support structure of the at least one support structure is configured to support a first dipole arm, and at least a portion of the support structure of the at least one support structure is configured to support a second dipole arm; a second arm section on the outside of the first dipole arm is bent relative to the first arm section on the inside toward a first side of the first support section to support the dipole arm; a second arm section on the outside of the second dipole arm is bent relative to the first arm section on the inside toward a second side of the first support section opposite to the first side.

Abstract: Antennas comprise a reflector and first and second arrays of first radiating elements mounted on the reflector. The antenna further comprises a parasitic element including a metal ring, where the metal ring of the parasitic element is arranged between a first radiating element of the first array and a first radiating element of the second array. The antenna can improve the isolation between adjacent arrays, thereby improving the radiation patterns generated by the arrays.

Abstract: A radiating element for an antenna comprises at least one radiating arm having a first electrically conductive arm segment extending in a first direction and a second electrically conductive arm segment extending in a second direction and electrically connected to the first arm segment.

Abstract: A support piece comprises: a first support section configured in the shape of a plate, and a plurality of second support sections; every second support section in the plurality of second support sections is set on the outside of the first support section and is bent relative to the first support section; every second support section comprises at least one support structure. At least a portion of the support structure of the at least one support structure is configured to support a first dipole arm, and at least a portion of the support structure of the at least one support structure is configured to support a second dipole arm; a second arm section on the outside of the first dipole arm is bent relative to the first arm section on the inside toward a first side of the first support section to support the dipole arm; a second arm section on the outside of the second dipole arm is bent relative to the first arm section on the inside toward a second side of the first support section opposite to the first side.

Abstract: The invention relates to a power divider support for a base station antenna. The power divider support is configured to be mounted on a panel assembly having a reflecting panel, the power divider support has a body, the body has a mounting area for mounting a power divider circuit board, the power divider support further has a plurality accommodation portions disposed adjacent to the mounting area, and the accommodation portions are configured to accommodate the end sections of coaxial cables. The present invention further relates to a power divider assembly for a base station antenna. The power divider assembly comprises a power divider circuit board, a plurality of coaxial cables and the power divider support, the power divider circuit board is mounted in the mounting area of the power divider support, and the end sections of the coaxial cables are accommodated in the accommodation portions of the power divider support. The power divider support is structurally simple and is easy to manufacture and mount.

Abstract: Radiating elements, antenna assemblies, and base station antennas including the same. For example, a radiating element is provided that includes a feed stalk and a radiator mounted on the feed stalk. The feed stalk includes a dielectric substrate, a first metal pattern printed on a first major surface of the dielectric substrate, and a second metal pattern printed on a second major surface of the dielectric substrate that is opposite the first major surface. The first metal pattern includes a first feed transmission line and a first feed welding region electrically connected to the first feed transmission line. The second metal pattern includes a second feed welding region electrically connected to the first feed welding region.