460 results about "Base station antennas" patented technology

Base station antennas include a reflector; a first plurality of cross-dipole radiating elements that are arranged as a first array of cross-dipole radiating elements, each cross-dipole radiating element comprising a first dipole radiator having a first dipole arm and a second dipole arm and a second dipole radiator having a third dipole arm and a fourth dipole arm; and a plurality of parasitic monopole elements that are associated with a first of the cross-dipole radiating elements, each parasitic monopole element including a monopole radiator, wherein at least half of each monopole radiator is positioned within a footprint of the first and second dipole radiators of the first of the cross-dipole radiating elements when the first of the cross-dipole radiating elements is viewed from the front.

Base station antennas include a reflector, a first linear array of radiating elements extending forwardly from the reflector, the radiating elements in the first linear array configured to operate in a first frequency band, and a second linear array of radiating elements extending forwardly from the reflector, the radiating elements in the second linear array configured to operate in the first frequency band. These antennas further include an isolation wall that is positioned in between the first linear array of radiating elements and the second linear array of radiating elements. This isolation wall comprises at least one partially reflective surface that is configured to reflect, on average as a function of frequency, between 20% and 80% of incident radiation in the first frequency band.

Radiating elements comprise a first dipole radiator that includes a first dipole arm and a second dipole arm, a second dipole radiator that includes a third dipole arm and a fourth dipole arm and first through fourth electromagnetic bandgap structures that are coupled to distal end portions of the respective first through fourth dipole arms.

The embodiment of the invention provides a dual-frequency base station antenna, and belongs to the technical field of antenna equipment, the dual-frequency base station antenna comprises a grounding plate, two dielectric substrates are laminated on the grounding plate, each dielectric substrate is correspondingly provided with a radiation unit, and the radiation signal frequency bands of the two radiation units are different; the radiation unit comprises a radiation patch and a metal through hole array which are arranged on the dielectric substrate, the radiation patch is a fan-shaped patch, the metal through hole array is arranged around the arc-shaped edge of the radiation patch, and the metal through hole array, the grounding plate, the dielectric substrate and the radiation patch jointly form a substrate integrated waveguide resonant cavity; the substrate integrated waveguide resonant cavity is configured to couple and excite the radiation patch after being externally excited so as to radiate a signal of a preset frequency band through the radiation patch. The dual-frequency base station antenna provided by the embodiment of the invention has excellent pilot frequency isolation performance, and can realize bandwidth expansion and radiation optimization effects.

The invention provides a low-cost dual-polarization electric scanning base station antenna applied to 5G communication, and provides an effective method for the design of a low-cost electric control scanning base station antenna. According to the invention, an antenna array surface is formed based on 2-bit dual-polarized microstrip antenna units, the antenna array surface and a feed network are in plug-in connection, and the feed phase of each antenna unit is controlled through an external wave control circuit board, so that phased wave beam scanning is realized. The base station antenna has the beneficial effects that compared with a traditional fixed beam base station antenna, the coverage range of the base station antenna can be effectively expanded; according to the invention, the microstrip antenna units are separated from each other and are not printed on a whole dielectric plate, so that the array scale can be flexibly controlled according to actual requirements; the antenna unit integrates two functions of radiation and phase shift, so that an external phase shifter is omitted, and the processing, assembling and maintenance costs are greatly reduced.

The present application relates to a kind of radiation elements, the radiation element includes: radiator, feed rod and parasitic element, the radiator is fed by the feed rod, wherein, the parasitic element includes conductive structure, the conductive structure includes serpentine conductive path, and coupling capacitance is formed between conductive structure and radiator, and wherein, the center frequency of the operating frequency band of the radiator is greater than the center frequency of the first operating frequency band of parasitic element.Radiation element according to some embodiments of the present application can at least reduce the coupling interference between each array, improve isolation performance.In addition, the radiation element according to some embodiments of the present application can also be used to reduce the size of radiation element itself, so that radiation element is more compact.In addition, the present application also relates to a kind of base station antennas.

The invention provides an antenna housing and a base station antenna. The radome can solve the problems that a traditional radome has obvious transmission loss and polarization mismatch during large-angle incidence, and the structural strength and the wave-transparent performance are difficult to consider at the same time. The antenna housing comprises a dielectric main body, at least one part of the dielectric main body is composed of a plurality of concave-convex units which are periodically arranged, each concave-convex unit is provided with a first surface and a second surface which are opposite to each other, and the second surface is a plane; the first surface comprises a concave area and a convex area surrounding the concave area, the thickness of the concave-convex unit in the concave area is a first thickness, the thickness of the concave-convex unit in the convex area is a second thickness, and the first thickness is half of the wavelength of the equivalent medium; the second thickness is N times of the first thickness, and N is larger than or equal to 1.2 and smaller than or equal to 1.5. According to the invention, mechanical strength and wave-transparent performance can be satisfied at the same time, and manufacturing cost can be reduced.

The invention provides an antenna unit, an antenna, an antenna system and a base station. The antenna unit comprises a metasurface radiation structure, a ground layer and a feed structure. The ground layer and the metasurface radiation structure are stacked in a first direction and are arranged at intervals. The feed structure comprises a first feed group and a second feed group. The first feed group is used for transmitting a signal of a first frequency band and is coupled with the metasurface radiation structure through the first interval to form a first antenna array. The second feed group is used for transmitting signals of a second frequency band and is coupled with the metasurface radiation structure through the second interval to form a second antenna array. Central frequency points of the first frequency band and the second frequency band are different, and at least one second feed part is arranged on the peripheral side of at least one first feed part of the first feed group. The integration level of the multi-band antenna system can be improved, and the antenna system has the advantages of miniaturization, light weight, low profile and the like.

The present application relates to the technical field of communications, and discloses a base station antenna unit, a base station antenna array, and a base station. The base station antenna unit comprises a dielectric plate, a metal ground plate, a first dielectric resonator, a second dielectric resonator, a dielectric coupling path, and a feeding structure; the metal ground plate and the feeding structure are arranged on two sides of the dielectric plate, respectively, and a cross-shaped slot is formed on the metal ground plate; the first dielectric resonator and the second dielectric resonator are of a symmetrical structure, and the first dielectric resonator and the second dielectric resonator are arranged on the dielectric plate; the dielectric coupling path is arranged on the dielectric plate, located between the first dielectric resonator and the second dielectric resonator, coupled to the first dielectric resonator and the second dielectric resonator, and located above the cross-shaped slot; and the feeding structure has two feeding ports, feeding input by means of different feeding ports excites the cross-shaped slot to generate an orthogonal electric field, and electromagnetic waves of the orthogonal electric field reach the first dielectric resonator and the second dielectric resonator by means of the dielectric coupling path.

A cellular base station antenna assembly includes: a telecommunications antenna with plurality of first communication ports mounted on a rear surface thereof; a remote radio unit mounted to the antenna having a plurality of second communication ports on a lower surface thereof; and an adapter configured to connect the remote radio unit to the antenna, the adapter including a housing, a first clustered connector that includes a plurality of individual first connectors, the first clustered connector being mounted on a lower portion of the housing, the adapter further including a plurality of second connectors mounted on an upper surface of the housing, each of the first connectors being connected with a respective second connector. Each of the second connectors is mated with a respective second communication port, and each of the first connectors is mated with a respective first communication port.

Twin-beam base station antennas are provided. A twin-beam base station antenna includes a plurality of vertical columns of radiating elements that are configured to transmit radio frequency signals in a frequency band. The radiating elements have bent metal radiator arms including tip portions that face respective center axes of the radiating elements.

Radiating elements comprise a feed column, a first dipole radiator that includes a first dipole arm and a second dipole arm that are connected to the feed column, and a second dipole radiator that includes a third dipole arm and a fourth dipole arm that are connected to the feed column. The feed column, the first dipole radiator and the second dipole radiator are formed as a monolithic structure.

A gearbox for an antenna, an antenna including the gearbox as well as a mobile communication base station including the antenna. The gearbox comprises at least two phase shift adjustment spindles that can be coupled to a respective phase shifter of the antenna and driven for electrically adjusting a radiation beam direction of the antenna. A rotary driving actuator of the gearbox is adapted to rotate a coupling element. A function selector actuator includes a movable function selector element that is fixed to the coupling element and to a coupling mechanism of the gearbox, wherein the function selector element is movable from a first position to a second position thereby actuating the coupling element and the coupling mechanism to either adjust a phase shifter or to select a phase shifter to be adjusted.

Base station antennas include an externally accessible active antenna module releasably coupled to a target mounting structure behind a rear of a base station antenna housing using active antenna module mounting brackets that attach to the active antenna module, project rearward of the active antenna module and are configured to directly attach to a target mounting structure such as a pole. The base station antenna housing has a passive antenna assembly that cooperates with the active antenna module.

The invention relates to the technical field of antennas, in particular to an antenna unit, a base station antenna and communication equipment. The antenna unit can be widely applied to various base station antenna forms, including active and passive antenna systems. The antenna unit comprises an excitation unit, a metasurface radiation structure and a reflecting surface, the metasurface radiation structure and the reflecting surface are oppositely arranged at an interval, and the excitation unit is used for exciting the metasurface radiation structure to radiate electromagnetic signals; the reflecting surface is used for reflecting signals radiated by the metasurface radiation structure, and the distance between the metasurface radiation structure and the reflecting surface changes along the first direction. The direction of the radiation beam can be changed to realize deflection of the radiation beam.

The application relates to the technical field of antennas, in particular to a radiation unit and a base station antenna. The radiation unit comprises a radiator, a feeding structure connected to one side of the radiator, and the feeding structure comprises a balun and a feeding core, a first feeding cavity is formed in the balun, the feeding core is at least partially inserted into the first feeding cavity, and the feeding core is used for feeding an external input feeding signal to the radiator; a first through hole in communication with the first feeding cavity is arranged on the side wall of the balun; a phase-shifting medium is at least partially inserted into the first feeding cavity from the first through hole along a first direction, and the first direction is arranged in parallel with the plane where the radiator is located. The phase-shifting medium is located on one side of the feeding structure, the space dimension under the radiator is fully utilized, the feeding structure and the phase-shifting medium are integrated, the phase of the radiation unit can be adjusted, and the miniaturization of the antenna is realized.

This application provides a dual-polarized differential base station antenna, relating to the field of communication technology. The dual-polarized differential base station antenna includes a dielectric substrate, a first resonant cavity, multiple second resonant cavity groups, a coupling component, and a coaxial feed conductor. The first resonant cavity is disposed inside the dielectric substrate and extends to the upper and lower surfaces of the substrate. A first radiation slot is provided on the upper surface of the first resonant cavity. Multiple second resonant cavity groups are symmetrically distributed around the first resonant cavity. Each second resonant cavity group includes at least one second resonant cavity, and a second radiation slot is provided on the upper surface of each second resonant cavity. The coupling component connects the first resonant cavity to each second resonant cavity group. The coaxial feed conductor is connected to a ground plane and penetrates the dielectric substrate to connect to the upper surface of the first resonant cavity. The dual-polarized differential base station antenna of this application achieves high gain, high isolation, and wide bandwidth performance while maintaining a low profile structure.

The utility model discloses a crawling ladder type low-altitude unmanned control tower integrally designed with a lifting type lamp panel system, the control tower comprises a tower column, the lifting type lamp panel system, lifting type maintenance platforms and a multi-section vertical crawling ladder matched with a lifting device are arranged on the tower column, so that maintenance personnel can conveniently reach each maintenance platform to maintain the control tower; two equipment mounting platforms are arranged below the maintenance platform at the top of the tower column, and an unmanned aerial vehicle detection radar, an adversarial radar, a high-power bird repelling system, a detection monitoring radar, an unmanned aerial vehicle positioning system, an aviation obstruction light, a 360-degree high-definition monitoring system and the like can be loaded on the equipment mounting platforms so as to realize the functions of air traffic control positioning, communication command and the like; a communication base station antenna, an ADS-B (Automatic Dependent Surveillance-Broadcast) antenna, an air traffic control multipoint positioning antenna, a phased array monitoring radar, a lightning rod and the like can be arranged on the equipment mounting rack on the extension rod at the top of the tower column; therefore, the unmanned control tower is reasonable in structure, rich in equipment, capable of effectively meeting the monitoring, communication and illumination requirements and convenient to maintain.

An antenna array module is provided, in which two or more antenna units are mounted on one side, which is provided with two power divider circuits from a power supply circuit board, and a filter is mounted on the other side, which is provided with two matching circuits from the same board. Each of the power divider circuits is provided with one input terminal and several output terminals. The output terminals of one power divider circuit provide -45° polarized power to the antenna units, respectively, and the output terminals of the other power divider circuit provide +45° polarized power to the antenna units, respectively.Each coupling circuit is provided with a radio frequency input terminal and an output terminal, with the output terminal of each coupling circuit connected to the input terminal of a power divider circuit, respectively. The filter is provided with at least two output terminals, each of the two filter output terminals being electrically connected to the radio frequency input terminals of the coupling circuits, respectively. A base station antenna is also provided. The present invention achieves integration and modularity, improving expandability through simple mounting and connection structures, which facilitates subsequent debugging and maintenance, thereby reducing manufacturing and operating costs.

A user equipment (UE) of a wireless communication network is configured to operate with wireless communication system Radio Access Networks (RANs) using dynamic base station antenna port adaptation and is configurable to operate under one or more of settings for: i) a plurality of active transmission configuration indicator (TCI) states; ii) a COntrol REsource SET (CORESET) index pool with a plurality of CORESET indexes; iii) channel state information (CSI) enhancement including at least one of channel measurement resource (CMR) pairs for a non-coherent joint transmission (NCJT) measurement hypothesis, and CSI report enhancement; iv) codebooks for computing CSI for reduced base station antenna configurations. The UE is configured to operate under one or more of the settings with at least one restriction, and then operated under the configured settings.

The application provides a gear shift adjusting device and a base station antenna. The gear shift adjusting device comprises a mounting seat, a mounting cavity is arranged in the mounting seat; a gear shift transmission unit, at least one gear shift transmission part is arranged in the mounting cavity, the gear shift transmission part has a plurality of gear output parts, one gear output part is used for corresponding one antenna gear; a gear shift switching unit, a position selection driving part is arranged in the mounting cavity, and a position selection part is arranged corresponding to the gear shift transmission part, the position selection driving part is drivingly connected with the position selection part, so that the position selection part selects the gear output part in the corresponding gear shift transmission part; and a gear shift driving unit, a gear shift driving part is arranged in the mounting seat and corresponding to the gear shift transmission part, the gear shift driving part is used for driving the corresponding position selection part to drive the corresponding gear output part.

Multibeam base station antennas include an antenna array that includes a plurality of columns of radiating elements and a beamforming network having at least two rows and two columns of directional couplers, where adjacent pairs of directional couplers in each row are connected to each other by respective ones of a plurality of delay lines, where at least some of the delay lines have a wave shape having multiple peaks and valleys.

The present disclosure relates to a phase shifter assembly including: a first housing including a first cavity and a second cavity, where the first cavity and the second cavity are arranged side by side with each other in a horizontal direction or the first cavity and the second cavity are arranged perpendicular to each other in a forward direction; and a first transmission line configured to feed a radiation element with a radio frequency signal in a first polarization direction, in which 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. In addition, the invention also relates to a base station antenna.

An antenna comprises first and second radiating elements that are configured to operate in respective first and second operating frequency bands, and a parasitic element that includes a overlapping first and second conductive paths. The first conductive path includes a plurality of first segments and the second conductive path includes a plurality of second segments. A subset of the first segments overlap respective ones of the second segments to form a plurality of pairs of overlapping first and second segments and at least some of these pairs are configured so that an instantaneous direction of a first current formed on the first segment in response RF radiation emitted by the second radiating element will be opposite an instantaneous direction of a second current formed on the second segment in response to the RF radiation emitted by the second radiating element.

Cellular base station antenna concealments, such as palm and tree concealments, utilize artificial branches with nonmetallic (e.g., polymeric) fasteners to avoid loose metal-to-metal connections to mitigate the generation of passive intermodulation (PIM) interference by the branches. Representative embodiments include “palm concealments” with low-PIM artificial palm fronds, and “tree concealments” with low-PIM artificial tree branches. That is, “low-PIM fronds” and “low-PIM tree branches” are two representative examples of “low-PIM branches” illustrating representative embodiments of the invention. The low-PIM palm frond includes a nonmetallic (e.g., polymeric) fasteners and sleeve positioned between a metal frond shaft and a metal frond receiver. The low-PIM tree branch includes nonmetallic (e.g., polymeric) fasteners as the only low-PIM isolators added to conventional tree branch assemblies to avoid PIM generation by the tree branch assembly.

Base station antennas include first and second RF ports, a first array of radiating elements that includes a first column of radiating elements, a first additional radiating element and a second additional radiating element, where each of the radiating elements in the first array of radiating elements are coupled to the first RF port and not to the second RF port, and a second array of radiating elements that includes a second column of radiating elements, a third additional radiating element and a fourth additional radiating element, where each of the radiating elements in the second array of radiating elements are coupled to the second RF port and not to the first RF port. The first through fourth additional radiating elements may form a third column of radiating elements that is positioned between the first column of radiating elements and the second column of radiating elements.

The invention discloses a small base station antenna, and relates to the technical field of base station antennae, and the small base station antenna comprises a housing and a radiation unit. The radiation unit comprises a dielectric bottom plate and a dielectric top plate; the dielectric bottom plate is arranged in the shell, the same surface of the dielectric bottom plate is provided with a microstrip patch oscillator and a feed microstrip line which are connected with each other, the microstrip patch oscillator is provided with an extension radiator, and the extension radiator is used for changing a current path on the microstrip patch oscillator; the dielectric bottom plate is arranged in the shell, the dielectric top plate is arranged in the shell, the dielectric top plate is connected with the dielectric bottom plate through a supporting column, the dielectric top plate is provided with a guiding sheet, and the guiding sheet is used for enhancing the directivity and gain of the small base station antenna. The invention aims to reduce the volume of the base station antenna while ensuring the performance of the base station antenna.

The application discloses a kind of based on decoupling surface and isolation plate's dual polarization and double frequency base station antenna and array, the base station antenna includes low frequency antenna array, high frequency antenna array, antenna floor and multiple first isolation plate being arranged in antenna floor, multiple second isolation plate being arranged in the middle of adjacent two first isolation plate;High frequency antenna array includes multiple columns of high frequency antenna unit column being installed in the middle of adjacent first isolation plate and second isolation plate;Low frequency antenna array includes multiple columns of low frequency antenna unit column being installed in the middle of adjacent two first isolation plate;Each column of low frequency antenna unit column includes multiple low frequency antenna units printed with decoupling surface, decoupling surface includes 8 several Chinese character shape metal strip, 180 square metal patch and 40 rectangular metal patch.Not only solve the problem of low frequency antenna to high frequency antenna's shelter, repair high frequency antenna pattern, but also can effectively improve low frequency antenna and high frequency antenna's same frequency isolation, improve decoupling effect.

The utility model relates to an intelligent following luggage barrow which comprises a barrow body, a sensing system, a power chassis system and a main controller. The trolley body is of an aluminum profile structure, has high hardness and high bearing capacity and is divided into a small luggage storage area and a large luggage storage area. The sensing system is composed of a fisheye camera, a UWB base station antenna and a laser radar, and is used for capturing and tracking users, identifying obstacles and constructing a local map. The power chassis system comprises a motor, a speed reducer, a brake and an intelligent battery chassis, an L-shaped layout structure is adopted, and slippage steering is achieved through two-wheel differential control. The main controller integrates an AI module, a Bluetooth module and a 4G module, and is responsible for operation of an autonomous following function and issuing of a driving instruction. According to the utility model, intelligence, automation and safety of luggage carrying are realized, and a convenient, efficient and safe luggage carrying solution is provided for users.

The disclosed technology relates to an antenna module comprising: at least one array of antenna elements (101); at least one layer comprising a frequency selective surface (102; 107) configured to control the transmission and reflection of electromagnetic waves; and a reflector (104), the reflector comprising an opening. In accordance with the disclosed techniques, one of the at least one layer comprising a frequency selective surface (FSS) is mounted on / to the opening in the reflector (104), and an antenna element (106) mounted on the at least one FSS layer (107) is capacitively coupled to a conductive reflector material surrounding the opening in the reflector (104).