694 results about "Base station antennas" patented technology

Base station antennas include at least one passive internal grid reflector with an array of low band radiating elements projecting forward of a front one of the at least one grid reflector. A mMIMO antenna array resides behind a back one of the at least one grid reflector and is configured to transmit signal through the grid reflector and out a front radome of the base station antenna.

The invention relates to the technical field of unmanned aerial vehicles, and particularly discloses an unmanned aerial vehicle integrating multiple operation functions, which comprises a bearing mechanism, the bearing mechanism comprises an unmanned aerial vehicle main body and a mounting frame fixedly mounted on the lower surface of the unmanned aerial vehicle main body, a bottom frame is fixedly mounted on the lower surface of the mounting frame, and a fixed base is fixedly connected to the lower surface of the bottom frame; buffer guide rails are arranged on the two side faces of the fixed base, longitudinal sliding grooves and a positioning mechanism are formed in the buffer guide rails, the positioning mechanism comprises a plurality of transverse rods fixedly connected to the mounting frame, positioning suction cups are fixedly mounted on the transverse rods, and a connecting arm and a pump are fixedly mounted on the lower surface of the fixed base; according to the device, the states of base station antennas, equipment, cables and the like can be detected in real time through the image acquisition equipment, manual tower climbing is not needed, the base station equipment is placed on the bottom frame, and the adsorption force of the positioning suction cup can be improved in combination with the blowing cleaning equipment; therefore, the installation stability of multi-carried equipment can be improved while blowing cleaning operation can be guaranteed.

A base station antenna includes a calibration circuit that has a plurality of pairs of directional couplers and an antenna array that includes a plurality of columns of radiating elements. The first polarization radiators of the radiating elements in each column are electrically connected to a first directional coupler of a respective one of the pairs, and the second polarization radiators of the radiating elements in the column are electrically connected to a second directional coupler of the respective one of the pairs. The directional couplers may be arranged in a manner that reduces in-column coupling and / or that reduces cross-column coupling between adjacent columns of radiating elements.

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.

The invention relates to a phase shifter and a base station antenna. The phase shifter comprises a circuit board (10) and a cavity (20), the circuit board (10) is located in the cavity (20), and the circuit board (10) is provided with a grounding connection end (11) and signal connection ends (12) of a plurality of phase shift circuits; the conductive part (70) is arranged in the cavity wall of the cavity (20) in a penetrating manner, and a part of structure of the conductive part (70) is electrically connected with the grounding connection end (11) of the circuit board (10); wherein the cavity (20) is provided with a cavity avoiding hole (22), and the cavity avoiding hole (22) is arranged opposite to the signal connecting end (12) and the grounding connecting end (11), so that the signal connecting end (12) and the grounding connecting end (11) are exposed from the cavity avoiding hole (22). According to the phase shifter and the base station antenna, electroplating-free effect can be realized, the occupied space is small, and the layout of the whole machine can be simplified.

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 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.

The invention provides a base station antenna and a base station. The base station antenna comprises a first antenna array, a frequency selection surface, a second antenna array and an antenna conductive part. The frequency selection surface is located between the first radiator of the radiation unit of the first antenna array and the second antenna array, and the frequency selection surface is used for reflecting a radiation signal of the first antenna array and transmitting a radiation signal of the second antenna array; the antenna conductive part and the first antenna array are positioned on the same side of the array surface of the second antenna array; the antenna conductive part comprises a conductive substrate, a first structure unit and a second structure unit. The first structure unit and the second structure unit surround the conductive substrate by one circle, and the first structure unit and the second structure unit are arranged adjacently at intervals and form a capacitor. The base station comprises a holding pole and the base station antenna, and the base station antenna is fixed on the holding pole. According to the invention, the problem of electromagnetic shadow caused by shielding of the metal part can be improved.

A base station antenna includes a first radio frequency (“RF”) port; a second RF port; a first array of radiating elements that includes a first radiating element, the first radiating element including first and second radiators each having the first polarization direction, wherein the first radiator is coupled to the first RF port; a second array of radiating elements that includes a second radiating element, the second radiating element including a third radiator having the first polarization direction; and a first power divider having a first input that is coupled to the second RF port, and first and second outputs that are respectively coupled to the second and third radiators.

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 discloses an automatic fault prediction method and system for operation and maintenance of a base station, and relates to the technical field of operation and maintenance of the base station, and the method comprises the steps: collecting a plurality of signal features at a plurality of monitoring positions of a communication base station, carrying out the change analysis of the signal features of a base station antenna, and obtaining a plurality of signal change parameters; performing base station antenna offset analysis according to the plurality of signal change parameters to obtain a plurality of antenna offset parameters, and performing offset credibility analysis to obtain a plurality of offset credibility; acquiring environment parameters in an environment where the communication base station is located, and performing base station antenna influence offset analysis in combination with the plurality of antenna offset parameters to obtain a plurality of antenna influence offset parameters; and according to the plurality of offset credibility and in combination with the plurality of antenna influence offset parameters, calculating to obtain an antenna fault scale, and taking the antenna fault scale as a base station operation and maintenance fault prediction result. According to the invention, the technical problem of poor fault prediction accuracy in operation and maintenance of the base station in the prior art is solved.

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.

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.

The invention discloses a metasurface luneberg lens and a base station antenna. The metasurface luneberg lens comprises a transmission array composed of multiple layers of artificial electromagnetic metasurfaces which are arranged in parallel and arranged at equal intervals. The artificial electromagnetic metasurface comprises a printed circuit board and a plurality of metal patterns which are arranged on the plane of the printed circuit board and are arranged in rows and columns; the transmission array is provided with an effective dielectric constant adjusting area which is a plane area where two adjacent rows of metal patterns in the center of each layer of artificial electromagnetic metasurface of the transmission array are located. And the metal patterns of the effective dielectric constant adjusting region and the rest metal patterns of the artificial electromagnetic metasurface have different sizes and / or different arrangement densities. According to the embodiment of the invention, the vertical half-power angle can be flexibly adjusted while the horizontal half-power angle is kept unchanged, and the directional diagrams of different beams are kept consistent, so that the adaptability of the luneberg lens antenna is improved.

The invention discloses a base station antenna, a radiating element and a phase shifter assembly. A base station antenna includes: a radiating element including a feed rod and a radiator mounted on the feed rod; the phase shifter assembly comprises a phase shifter cavity, and the wall, close to the feed rod, of the phase shifter cavity is provided with a through hole corresponding to the feed rod; and a phase shift circuit mounted within the phase shifter cavity wherein the feed pole is configured to be fixed relative to the phase shift circuit and the first conductor feature of the feed pole is directly electrically connected through the through-hole with the second conductor feature of the phase shift circuit.

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.

This application provides a base station antenna and a base station system. The base station antenna includes a reflection panel, a dielectric body, a metal strip, a sliding dielectric, and an antenna element. The reflection panel is provided with a metal cavity, the metal cavity has an opening, and the opening faces a front side of the reflection panel. The metal strip is disposed on the dielectric body, one end of the metal strip is disposed in the metal cavity, and the other end of the metal strip extends out of the metal cavity. At least a part of the sliding dielectric is slidably disposed in the metal cavity. The antenna element is connected to the end of the metal strip that extends out of the metal cavity.

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.

The invention relates to a mounting device for mounting a radio remote unit (2) to a base station antenna (1) and to a base station antenna system formed thereby. The mounting device comprises a support base (6) configured for mounting to the base station antenna and for supporting the radio remote unit, a support element configured for mounting to the radio remote unit and movable in the mounted state together with the radio remote unit between a first position in which the support element is lifted from the support base and a second position in which the support element is supported on the support base, a plug-in structure comprising a plug-in element and a socket element, one of the plug-in element and the socket element being configured for mounting to the base station antenna and the other of the plug-in element and the socket element being configured for mounting to the radio remote unit, the plug-in element and the socket element being separated from each other in the first position and being engaged with each other in the second position.

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.

The invention discloses a method for acquiring passive intermodulation interference caused by oxidation corrosion of a base station antenna, and aims to further supplement and improve the existing research so as to quantitatively evaluate the passive intermodulation interference generated after the oxidation corrosion of the base station antenna. An analysis object is set as the side surface of a microstrip line conductor, firstly, the amplitude coefficient AD2 of voltage of each point in the lower edge area of the side surface of an unoxidized and corroded microstrip line under the action of a single carrier signal is determined, and then after it is determined that the microstrip line is oxidized and corroded, the amplitude coefficient AD2 of voltage of each point is determined. According to the method, the tunneling current density JMIM and the total tunneling current IMIM of the oxidation corrosion areas are obtained according to the average voltage value of the oxidation corrosion areas, and on the basis, the third-order passive intermodulation voltage V3rd-PIM (t) is calculated, so that the passive intermodulation interference generated after oxidation corrosion of the base station antenna is quantitatively evaluated.

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.

The invention provides a millimeter wave antenna, a millimeter wave base station antenna and a millimeter wave isolation structure. The antenna comprises a parasitic radiation layer, a main radiation layer and a grounding layer which are sequentially stacked from top to bottom, the parasitic patch on the parasitic radiation layer and the main radiation patch on the main radiation layer can respectively form resonance points and are coupled, so that the bandwidth expansion of the antenna is realized; the upper surface of the grounding layer is provided with a coupling structure, and the lower surface is provided with a feed structure. The feed structure and the coupling structure achieve a dual-polarization mode through two vertically-arranged microstrip gaps, feed signals can be transmitted and coupled to the main radiation layer more effectively, and the wide-beam antenna performance is achieved. Therefore, the antenna has good radiation efficiency in the frequency bands of N257, N258 and N261, and better meets the application requirements of 5G millimeter wave base station antennas. Meanwhile, excellent isolation performance is also realized; in addition, the base station antenna has the advantages of being simple in design and process.

The present invention relates to a mounting assembly for a base station antenna and a mounting kit including the mounting assembly. The mounting assembly has a first and a second connection portion, the effective length between which is related to the mechanical tilt angle of the base station antenna, and the effective length is continuously adjustable. The mounting assembly includes a linkage mechanism having a first pair of links, a second pair of links, and a threaded connection device. The threaded connection device connects two relatively movable hinged connection portions of the linkage mechanism. By screwing the threaded connection device, the distance between the two relatively movable hinged connection portions and, therefore, the effective length can be continuously adjusted, so that the mechanical tilt angle of the base station antenna can be simply and continuously adjusted. The first and second connection portions have mutually parallel first rotation axes, and the multiple hinged connection portions of the linkage mechanism have mutually parallel second rotation axes, with the first rotation axis and the second rotation axis being perpendicular to each other.

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.