275results about "Wind-induced force reduction" patented technology

A method for compensating a movement of an antenna structure having a directive antenna mounted thereto is disclosed. The method comprises obtaining sensor data from a motion sensor, where the sensor data is indicative of the movement of the antenna structure relative to a reference orientation. Moreover, the motion sensor is associated with a set of calibration parameters such that when applied to the obtained sensor data, calibrated sensor data is formed. Further, the method comprises generating a compensation signal at an output for controlling a beam direction of the directive antenna based on the formed calibrated sensor data such that the beam direction is an intended direction of the directive antenna and such that the (unwanted) movement of the antenna structure is compensated. The method further comprises re-calibrating the motion sensor in order to generate a set of calibration coefficients upon either one of an expiry of a predefined time period, a counter reaching a counter threshold, or upon a measured antenna parameter or signal parameter diverging from a parameter range. Once, one of these conditions are fulfilled, the re-calibration is performed by obtaining a received signal strength indication (RSSI) while the beam direction is controlled based on the generated compensation signal, generating the set of calibration coefficients based on the obtained RSSI, and updating the set of calibration parameters for the motion sensor with the determined set of calibration coefficients.

An antenna, an antenna assembly, and a base station includes a radome, a first antenna portion, and a second antenna portion. The first antenna portion is disposed inside the radome, and the second antenna portion is coupled to the first antenna portion, disposed outside the radome, and exposed to a surrounding environment. In this way, the radome does not need to cover the entire antenna, but covers only a portion of the antenna. Therefore, a wind load acting on a support structure by using the radome can be reduced. In addition, a cavity is provided to accommodate transmission lines of the antenna together, so that use of a connecting device such as a jumper can be reduced or even avoided, to reduce a transmission loss of the antenna.

The present disclosure provides an antenna, an antenna system and an automobile, belonging to the field of wireless communication technologies. The antenna includes a main antenna, a parasitic antenna and a main board; the main antenna and the parasitic antenna are both located on the surface of the main board, and the plane where the main antenna is located is parallel to the plane where the parasitic antenna is located and the positions are opposite; the feeding point of the main antenna is connected to the feeding transmission line of the main board, and the parasitic antenna is connected to the second grounding end of the main board; wherein, the difference between the resonant frequency point of the main antenna and the resonant frequency point of the parasitic antenna is less than a target threshold. When this antenna is applied in an automobile as a communication antenna of the automobile, such as a 4G communication antenna or a 5G communication antenna, it can achieve 4G or 5G wide-bandwidth coverage, such as full-bandwidth coverage. In addition, this antenna can also improve the out-of-band suppression ratio and enhance the anti-foreign frequency interference characteristics.

The invention discloses a high-stability detachable inflatable antenna base supporting structure which comprises a fixed base, a movable square box, a supporting rod and a lateral thrust structure. The fixed base is arranged on the ground, a movable square box is installed at the top of the fixed base, a supporting rod is horizontally installed on the movable square box, and the lateral thrust structure is fixed to the supporting rod and used for laterally supporting an antenna body. According to the invention, by introducing a plurality of lateral thrust structures, the lateral force resistance and stability of the supporting structure are obviously enhanced; particularly, the performance is excellent in a strong wind or vibration environment, and the shaking risk is reduced.

The invention relates to the technical field of vehicle-mounted antennas, in particular to a combined ultra-short-wave high-power center-fed vehicle-mounted antenna which comprises an antenna base, an antenna whip rod, a row of curved section units, a long metal curved sheet, a whip head spring assembly and a whip root plate, the antenna base comprises an integrated shell fixedly connected with the whip root plate, and a wind box device installed in the integrated shell; when a vehicle runs normally, a row of curved section units form a hard straight frame, the curved section units bind the antenna whip rod, the antenna whip rod cannot be bent and swung, vibration impact on the vehicle has small influence on the hard antenna, the hard antenna can stably receive signals, and when the vehicle runs at a high speed, the antenna whip rod cannot be damaged. When the vehicle runs at a high speed, the hard straight frame formed by the row of curved section units is disassembled, the antenna pole loses constraint, airflow blows the antenna pole, and the antenna pole bends following the wind, so that the soft antenna can reduce the wind resistance of the vehicle in the high-speed running process.

The present invention discloses a general-purpose low-profile active array antenna system, which includes an antenna module, a multi-functional structural frame, a power divider module, a beam control module, a radio frequency connector, and a low-frequency connector. The multi-functional structural frame includes at least two cavities, and the partition between the two cavities includes a plurality of radio frequency connection holes and a plurality of low-frequency connection holes. The antenna module is connected to one of the cavities, the power divider module and the beam control module are connected to the other cavity. The radio frequency connector is located in the radio frequency connection hole, and the radio frequency connector connects the antenna module and the power divider module. The low-frequency connector is located in the low-frequency connection hole, and the low-frequency connector connects the antenna module and the beam control module. The beneficial effects of the present invention are as follows: the system composition is simplified, which is beneficial to the generalization, serialization, and standardization design of modules, and is more conducive to the realization of low-cost design of active array antennas.

The invention is suitable for the technical field of communication antenna installation, and provides a device for adjusting the declination angle of a communication antenna, which comprises a main shaft and a bottom bracket fixed on the main shaft, a plurality of installation shafts are annularly and uniformly fixed at the upper end of the bottom bracket, and the side walls of the plurality of installation shafts are rotatably connected with screw rods; the communication antennas are rotationally connected to the multiple mounting shafts, and the sliding sleeves are slidably connected to the multiple mounting shafts; and the multiple sliding sleeves are rotationally connected with connecting rods. When the threaded sleeve moves to the tail end of the screw rod and the screw rod continues to rotate, the screw rod can overcome the friction force of the friction assembly and drive the threaded sleeve to rotate, so that the threaded sleeve is prevented from rigidly colliding with the screw rod and being damaged; the downward inclination angles of the plurality of communication antennas can be respectively adjusted in a manner that the pushing mechanism pushes the different lifting sliding plates to move upwards and the driving shaft rotates, so that the steps of adjusting the downward inclination angles of the plurality of communication antennas are simplified, and the operation is simple.

The invention provides an unfolding device of a satellite-borne phased-array antenna and an assembling and working method of the unfolding device, and belongs to the technical field of space product structure and mechanism design. The problem that the unfolding capacity of an existing unfolding type phased-array antenna is limited is solved. The unfolding device comprises a phased-array antenna unfolding part, unfolding locking mechanisms and a pressing releasing mechanism, in a pressing state, the phased-array antenna unfolding part is located below a satellite bottom plate, and the side edge of the phased-array antenna unfolding part is connected with a main frame of a satellite through the unfolding locking mechanisms which are symmetrically arranged; a plurality of pressing points are arranged on the phased-array antenna unfolding part, each pressing point is connected with a satellite through a pressing releasing mechanism, phased-array antenna sub-arrays are arranged on the phased-array antenna unfolding part and a satellite bottom plate, and the unfolding locking mechanism comprises an unfolding arm, an unfolding arm support, a torsion spring and a locking hook. The two ends of the two unfolding arms are rotationally connected with the two ends of the two unfolding arm supports. The satellite-borne phased-array antenna unfolding device is mainly used for unfolding satellite-borne phased-array antennas.

The invention provides an antenna, an antenna feed system and a base station, relates to the technical field of communication, and aims to provide an antenna capable of giving consideration to both beamforming capability and safety. The antenna comprises a first antenna array and a second antenna array, and the first antenna array and the second antenna array can rotate relatively. Therefore, according to the antenna provided by the invention, the beamforming capability and the safety can be considered by reducing the antenna surface area of the antenna under different wind power conditions.

The invention discloses an automobile shark fin antenna, which comprises a shell, the top of the shell is in a double-shark fin shape, and a cavity is formed in the shell; the antenna is arranged between the two fins at the top of the shell, the bottom of the antenna is fixedly connected with a rotating shell, and the rotating shell is rotationally connected with the shell; the bistable mechanism is arranged in the shell, the bistable mechanism comprises a telescopic rod, the top end of the telescopic rod is fixedly connected with the outer wall of the rotating shell, and the bottom end of the telescopic rod is fixedly connected with a round rod; the top of the connecting plate is fixedly connected with the inner wall of the shell, an arc-shaped groove sliding with the round rod is formed in the connecting plate, a first cylinder is rotationally connected to the round rod, a second cylinder is rotationally connected to the position, under the rotating shell, of the shell, and a first spring piece is connected between the first cylinder and the second cylinder; the driving assembly is arranged in the shell, and the driving assembly is used for driving the rotating shell to move in the arc-shaped groove; and the damping device is arranged on the shell, and the damping device is used for reducing transverse low-frequency swing of the antenna.

The invention discloses a connecting piece of a communication iron tower, and belongs to the field of connecting pieces, the connecting piece comprises a tower body, a maintenance platform is installed on the tower body, a plurality of annularly distributed mounting racks are installed on the maintenance platform, each mounting rack is connected with a communication antenna through a plurality of connecting piece main bodies, each connecting piece main body comprises an upper connecting plate, and a lower connecting plate is installed on the upper connecting plate. A rotating shell is fixedly installed on the lower surface of one end of the upper connecting plate, by arranging a locking piece and a matching sleeve piece, when a second rotating piece is driven to rotate, the second rotating piece can descend along a sliding sleeve at the same time, and then the second rotating piece can push the locking piece; when the locking piece is pushed, the locking piece can be matched with the matching sleeve piece to clamp the surface of the mounting frame so as to achieve fastening, when the communication antenna is blown by wind to swing back and forth, self-locking can be achieved, the faster the airflow changes, the larger the wind power is, connection can be firmer, the loosening probability is reduced, the overhaul frequency is reduced, and the workload of workers is reduced. The use is convenient.

The invention relates to the technical field of antennas, in particular to a mounting bracket for a communication antenna, which comprises a support rod, a fixed seat, a clamping mechanism and an angle adjusting mechanism, the antenna body is connected to the supporting rod through the fixing base and the clamping mechanism, and the included angle between the antenna body and the supporting rod is adjusted through the angle adjusting mechanism. The clamping mechanism comprises a clamping piece capable of generating elastic deformation, a pre-pressing piston and a pre-pressing spring, the pre-pressing piston and the pre-pressing spring are used for relieving the problem that the clamping force is changed due to thermal expansion and cold contraction, and the stability is improved; and by arranging the pressure adjusting mechanism, the wind speed detection assembly and the control system, the clamping force can be automatically adjusted according to the wind speed, and the stability is improved. By arranging a plurality of clamping pieces, the antenna body can be fixed on the supporting rod more firmly; through the control system, the switching assembly continuously switches the application position of the clamping force and adjusts the clamping force of the clamping piece, and the situation that the communication effect is affected due to loosening is avoided.

The invention discloses an antenna pointing active regulation and control method, device and equipment under the influence of environmental factors, and relates to the technical field of antenna performance regulation and control. Corresponding relations between wind power information and a wind field and between temperature information and a temperature field of a preset point location of an antenna are established in advance, so that after the wind power information and the temperature information of the preset point location of the antenna in a current preset time period are acquired, matching is directly performed based on the corresponding relations, and sensing of the wind field and the temperature field in the current preset time period is completed in real time. And then predicting the pointing deviation of the antenna at the next moment based on a second prediction model which learns the evolution relationship between the wind field and the temperature field in advance for the temperature field and the wind field of the antenna at the next moment and an antenna pointing deviation prediction model which learns the correlation between the wind field and the temperature field and the antenna pointing deviation in advance. The antenna pointing deviation is predicted in advance, so that the antenna pointing is actively regulated and controlled, the antenna is enabled to timely point to a detection target at the next moment, and the precision and the performance of the antenna are improved.

The present application relates to the technical field of communications, and provides an antenna, an antenna feeder system and a base station, for providing an antenna capable of considering beamforming capability and safety. The antenna comprises a first antenna array and a second antenna array, and the first antenna array and the second antenna array can rotate relative to each other. Therefore, according to the antenna provided by the present application, under different wind conditions, the beamforming capability and safety are considered by reducing the surface area of the antenna.

Assemblies, apparatuses, and methods are presented herein for coupling elements of an antenna assembly. A coupling apparatus for coupling antennas of an antenna assembly includes a spacer. A first end of the spacer is configured to interface with a first antenna. A second end of the spacer is configured to interface with a second antenna. An internal passageway extends from an end opening in the first end. The internal passageway also extends from a side opening between the first end and the second end.

The invention provides an antenna housing, an antenna and an antenna system, the antenna housing is installed on a holding pole, the antenna housing comprises a first area, the first area is an area enclosed by a critical point of simultaneous windward of the antenna housing and the holding pole on the antenna housing, and the first area comprises a first concave part. According to the antenna housing, the antenna and the antenna system provided by the embodiment of the invention, the overall wind load of the antenna system can be reduced.

A vehicle antenna module including a first main printed circuit board seated horizontally in a housing, at least one second printed circuit board including a radio frequency antenna mounted vertically on the first printed circuit board and projecting from an upper face of the housing, a cover mounted on the housing and designed to cover at least the second printed circuit board. The antenna module being such that the cover includes a shell and an elastic element. The elastic element being designed to exert a pressure on the upper edge of the second board when the cover is in place on the housing in order to provide an electrical contact between the lower edge of the second board and at least one flexible contact element on the surface of the first board.

The invention relates to the technical field of antenna protection, in particular to an antenna protection cover convenient to install. Comprising a base, a rubber pad is embedded in the lower portion of the base, a protective shell is rotationally connected to the base, first ventilation openings which are symmetrically distributed are formed in the lower portion of the protective shell, a guide rod is fixedly connected into the protective shell, and first baffles which are symmetrically distributed and second baffles which are symmetrically distributed are slidably connected to the guide rod; the winding frame is rotationally connected into the protective shell; and the winding wheel is arranged on the lower side of the winding frame, and a connecting rope is arranged between the first baffle and the winding frame and a connecting rope is arranged between the second baffle and the winding wheel. By adjusting the positions of the first baffle and the second baffle, gas in the protective shell can be exchanged with the outside under the condition that the external wind speed is low, so that the flowing gas takes away heat generated by the antenna, and the normal working state of the antenna is ensured.

The invention discloses a base station antenna with a work parameter measurement module, the base station antenna is provided with an antenna housing, the antenna housing comprises a main body, a first end cover and a second end cover, the first end cover and the second end cover are located at two ends of the main body, and the antenna housing is provided with an opening for plugging the work parameter measurement module. According to the base station antenna with the work parameter measurement module provided by the invention, the antenna housing is provided with the opening for plugging the work parameter measurement module, so that on one hand, the work parameter measurement module arranged in the antenna housing can be better protected; and on the other hand, the installation convenience of the work parameter measurement module can be improved in a pluggable mode.

The invention provides a V-shaped antenna and a communication system. The communication system comprises a mounting rack and at least two antennas, wherein the at least two antennas are mounted on the mounting rack around the peripheral side of the mounting rack. The at least two antennas comprise a V-shaped antenna. The V-shaped antenna comprises two mounting plates, a radiation unit array is mounted on the surface of the side, away from the mounting frame, of each mounting plate, and planes where the two mounting plates are located intersect to form a V-shaped structure. One of the two mounting plates is provided with a first axis, the other mounting plate is provided with a second axis, and the first axis and the second axis are perpendicular to the center line, extending along the axis, of the mounting frame. A first included angle beta is formed between the first axis and the second axis and is smaller than or equal to 150 degrees. The relation between the windward side and the radiation area is optimized, the adjacent V-shaped antenna supports are not prone to signal shielding, and gain of a communication system can be improved.

The present invention relates to a clamping apparatus for an antenna, the clamping apparatus including a rotation unit configured to rotate an antenna in a horizontal direction, a tilting unit configured to rotate the antenna in a vertical direction, and a rotation / vibration prevention unit configured to adjust a direction of the antenna by rotating at least one of the rotation unit and the tilting unit and prevent the antenna from arbitrarily rotating after the direction of the antenna is adjusted, in which the rotation / vibration prevention unit includes a rotation motor, a worm gear configured to be rotated by the rotation motor, a shaft configured to define at least one rotation center, and a worm wheel gear installed on an outer peripheral surface of the shaft and configured to rotate at least one of the rotation unit and the tilting unit while being rotated by the worm gear, thereby easily adjusting the direction of the antenna by controlling the rotation motor and preventing the antenna with the adjusted direction from arbitrarily rotating.

Provided is an antenna integrated structure in which an antenna is inserted into ground vehicle, marine ship and aircraft structure, and more particularly, a sandwich panel type antenna integrated latticecore having a structure for improving communication performance of an antenna module.

The present invention provides a bidirectional lens antenna and a multi-channel implementation method thereof, the antenna comprising antenna group 1, antenna group 2, a fixing mechanism and a waveguide, the antenna group 1 and the antenna group 2 are centrally symmetrically arranged, and both include a lens and a feed source, the lens is a spindle-shaped structure with a small diameter at both ends and a large diameter in the middle, the feed sources of the antenna group 1 and the antenna group 2 are arranged between the lenses of the antenna group 1 and the antenna group 2, and the signal transmission directions of the two feed sources are opposite; the fixing mechanism is used to install the lens, the feed source and connect the antenna group 1 and the antenna group 2; the waveguide sleeve is arranged outside the lens of the antenna group 1 and the antenna group 2, and is arranged with a gap between the lenses, and shields covering the lenses are also provided at both ends of the waveguide. The present invention can achieve multi-channel bidirectional coverage, and has the performance of low wind resistance, high gain, high directional pattern consistency, high aperture surface efficiency, etc.; and has low material requirements and is easy to implement; it is easy to assemble, low cost, and easy to mass produce.

The present disclosure belongs to the technical field of wireless communications, and provides an antenna, an antenna system and an automobile. The antenna comprises a main antenna, a parasitic antenna and a main board, the main antenna and the parasitic antenna both being located on the surface of the main board, and the plane where the main antenna is located and the plane where the parasitic antenna is located being in parallel and opposite to each other. A feed point of the main antenna is connected to a feed transmission line of the main board, and the parasitic antenna is connected to a second ground end of the main board, the difference value between the resonance frequency point of the main antenna and the resonance frequency point of the parasitic antenna being lower than a target threshold value. The antenna is applied to an automobile and serves as a communication antenna, such as a 4G communication antenna or a 5G communication antenna, of the automobile so as to achieve 4G or 5G broad bandwidth coverage, such as full-bandwidth coverage. In addition, the antenna can also improve the degree of out-of-band rejection and the anti-pilot-frequency interference characteristic.

The invention belongs to the technical field of base station antennas, and particularly relates to a base station antenna multi-angle self-adaptive adjustment mechanical transmission device which comprises an angle grinding frame, a control unit is arranged in a space on one side of the angle grinding frame, and a cleaning unit is arranged in a space on the other side of the angle grinding frame. The cable is additionally arranged between the base station antenna and the angle rod, when the base station antenna carries out inclination angle adjustment, the connection rigidity between the base station antenna and the angle rod is enhanced through the cable, and meanwhile the actual hoisting position of the arc light plate on the outer wall of the angle rod is dynamically adjusted; the traction force of the cable can be linearly changed along with the change of the inclination angle of the base station antenna synchronously, the system rigidity is dynamically adjusted in real time, the vibration amplitude is reduced, the coincidence between the vibration frequency and the inherent frequency of the system is changed to a certain extent, resonance damage is avoided, and fatigue accumulation of the movable connection point of the base station antenna is reduced.

The invention relates to a vehicle antenna module (100) comprising a main first printed circuit board (201) housed horizontally in a casing, at least a second printed circuit board (205a) comprising a radiofrequency antenna, mounted vertically on the first printed circuit board (201) and protruding from an upper face of the casing, and a cover (101), mounted on said casing, and configured to cover at least the second printed circuit board (205a), the antenna module (100) being such that the cover (101) comprises a shell (206) and an elastic element (207), the elastic element (207) being configured to exert pressure on the upper edge face of the second board (205a) when the cover is in place on the casing in order to ensure electrical contact between the lower edge face of the second board (205a) and at least one flexible contact element (300) on the surface of the first board (201).

The invention discloses a mobile platform stable tracking satellite antenna, and belongs to the field of satellite antennas. A mobile platform stable tracking satellite antenna comprises a mobile platform mounting plate, a satellite antenna body and guide plates symmetrically arranged on one side of the satellite antenna body are mounted at the bottom of the mobile platform mounting plate, and when the guide plates are rotationally adjusted, the guide plates are used for optimizing guidance of air flow to the satellite antenna body; a reflecting plate; through mutual cooperation of the guide plates and the reflecting plates, on one hand, airflow generated in the advancing direction of the mobile platform can be blocked, guided and dispersed and is prevented from being directly blown to the satellite antenna body, and on the other hand, the position between the two guide plates can be adjusted, so that wind resistance is reduced when a vehicle advances; the stability of the satellite antenna body during working is improved, and a part of airflow is intercepted by the dredging part to directly dissipate heat and cool the satellite antenna body, so that the occurrence of a fault phenomenon of the satellite antenna body is reduced.

The application discloses a vehicle-mounted multi-type antenna overturning and lifting device, which comprises a lodging overturning device, a lifting device and a vehicle carrying device. The lodging overturning device comprises an antenna, an antenna servo platform and a lodging overturning mechanism. The antenna servo platform is combined by vertically installing a servo control unit below one end of a lodging platform plate. The lodging overturning mechanism is installed at the other end of the lodging platform plate. The antenna is installed directly above the lodging overturning mechanism. A pitching mechanism is horizontally installed at the right side of the lodging overturning mechanism. The lifting device comprises a spring cable, an electric lifting rod, a lightning arrester and a speed reducer. The spring cable wraps the electric lifting rod. The lightning arrester is installed on the electric lifting rod and passes through the antenna servo platform to be located at the highest position. The speed reducer and the electric lifting rod are installed in parallel in a vehicle compartment. The vehicle carrying device comprises a control box and a vehicle compartment. The device can improve the working efficiency and the wind resistance, and meet the working information propagation distance of the antenna and the driving passability of the vehicle.

The application discloses a thin film circularly polarized antenna and belongs to the technical field of phased array antennas. The thin film circularly polarized antenna comprises an upper layer radiation thin film antenna, the bottom of the upper layer radiation thin film antenna is provided with an intermediate hollow structure, the side, away from the upper layer radiation thin film antenna, of the intermediate hollow structure is provided with a lower layer radiation thin film antenna, and the side, away from the intermediate hollow structure, of the lower layer radiation thin film antenna is provided with a bottom layer radio frequency printed board. The hollow region of the intermediate hollow structure forms an air medium layer, and air is used as an antenna radiation medium. The upper layer radiation thin film antenna, the intermediate hollow structure and the lower layer radiation thin film antenna are fixed and assembled into an integrated whole through a mechanical connection mode. The thin film circularly polarized antenna of the application omits the processes such as exposure, development, etching and multiple pressing of the conventional PCB process, greatly simplifies the manufacturing process, greatly reduces the manufacturing cost, is suitable for quick mass production with low cost, and has the advantage of not being easy to break compared with the conventional PCB process antenna.