47results about "Wind-induced force reduction" patented technology

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.

We generally describe an antenna (100, 200, 300, 400, 500), in particular a parabolic antenna, comprising: a primary reflector (102), in particular a parabolic dish, a feed antenna and / or a secondary reflector (104) for transmitting and / or reflecting an electromagnetic wave towards the primary reflector and / or receiving a said electromagnetic wave reflected from the primary reflector, a feed (106) coupled to the feed antenna and / or secondary reflector, wherein the feed antenna and / or secondary reflector is coupleable, via the feed, to a radio-frequency transmission and / or reception device (108), and an actuator unit (114, 116) coupled to one or more of the feed antenna, the secondary reflector and the feed, wherein the actuator unit is configured to move the feed antenna and / or the secondary reflector, by exerting a mechanical force on the feed antenna and / or the secondary reflector and / or the feed, relative to the primary reflector.

The invention relates to the technical field of antennas, in particular to a large-scale MIMO array antenna which comprises a mounting rod, a mounting plate and a signal unit, two clamping claws are arranged on the outer side of the mounting rod, an upper folding plate is arranged on the outer side of the mounting plate, a horizontal reset assembly is arranged between one clamping claw and the upper folding plate, and the signal unit is arranged on the mounting plate. The large-scale MIMO array antenna has the function that the mounting plate and the signal unit borne by the mounting plate can be automatically reset in the horizontal direction, the large-scale MIMO array antenna is provided with the horizontal reset assembly and the transverse reset assembly, the reset functions of the mounting plate and the signal unit in the horizontal direction and the transverse direction are achieved respectively, the continuous concentrated load of strong wind on the mounting rigid structure can be buffered, and the mounting reliability is improved. The large-scale MIMO array antenna has the advantages that the support, the connecting piece and the like are prevented from being fractured due to the fact that load exceeds tolerance limit, equipment damage probability is reduced, operation and maintenance stability of a base station is guaranteed, potential safety hazards caused by structural fracture are reduced, and the overall service life of the large-scale MIMO array antenna is prolonged.

The invention relates to the technical field of communication equipment, in particular to a communication base station which comprises a baseband processing unit, a radio frequency processing unit and an antenna feeder system which are installed on a stand column, the antenna feeder system is movably installed on the side portion of the stand column through a stretching component, and a movable frame of a stretching component body is installed on the side portion of the stand column in a sliding mode; the working angle and position of the antenna feeder system are adjusted by controlling the extension amplitude of the antenna feeder system on the side part of the stand column, so that the capability of resisting severe weather of the antenna equipment is improved; under the condition of hail weather, the antenna feeder system is erected, and the hail impact area is reduced; under the condition of storm weather, the antenna feeder system is folded towards the position close to the stand column, the extending distance of the antenna feeder system is shortened, the pressure borne by the connecting component is reduced, and the connecting component is prevented from being broken and damaged.

An antenna system, a communication device, and a communication system. The antenna system includes an antenna apparatus. The antenna apparatus includes a radiating element array and a reflection plate. The radiating element array is disposed on a first side of the reflection plate. The reflection plate further has a second side opposite to the first side. The reflection plate includes a plurality of reflection plate through holes. Space on the two sides of the reflection plate is connected through the plurality of reflection plate through holes. The antenna system further includes a blade. The blade is located on one side of the antenna apparatus, and is disposed opposite to the plurality of reflection plate through holes. The solutions provided help reduce impact of wind load on the antenna system, and improve performance of the antenna system.

Embodiments of this application disclose an antenna apparatus, to reduce windload. The antenna apparatus in embodiments of this application includes a radome. An interference structure is disposed on a surface of the radome, and the interference structure is configured to change flowing of an airflow at a surface boundary layer when the airflow passes through the surface of the radome. The interference structure is disposed on the antenna apparatus to change the flowing of the airflow at the surface boundary layer. This reduces windload on the antenna apparatus.

A reduced wind load antenna includes: a radome having front, rear, and side surfaces; upper and lower end caps attached to upper and lower ends of the radome to define an internal cavity; and radiating elements positioned within the internal cavity and configured to transmit and receive radio frequency (RF) signals. The antenna includes at least one airflow separation delaying feature selected from the group consisting of: large radiused corners on the lower end cap; a domed upper end cap; a domed lower end cap; a plurality of protuberances on the front surface; a plurality of protuberances on each of the side surfaces; spiral ridges on the front surface; and a continuous protuberance on each of the side surfaces.

The invention relates to a base station antenna capable of reducing wind load. The base station antenna comprises an antenna housing with a front surface, a rear surface, a first side surface and a second side surface; a top end cap and a bottom end cap disposed to an upper end and a lower end of the radome to define an inner cavity; and a radiating element located within the inner cavity and configured to transmit and receive radio frequency signals wherein the front surface has a recessed profile feature at a middle section and the rear surface has a rib profile feature at a middle section.

This application relates to the field of communication technologies, and provides an antenna, an antenna feeder system, and a base station, to provide an antenna that can balance a beamforming capability and safety. The antenna includes a first antenna array and a second antenna array. The first antenna array and the second antenna array can rotate relative to each other. Therefore, the antenna provided in this application can balance the beamforming capability and safety in different wind force conditions by reducing an antenna surface area of the antenna.

A satellite communication signal receiver disclosed by the present invention comprises a fixed base fixedly installed by using a bolt, an installation seat is fixedly installed on the upper surface of the fixed base, a first antenna and a second antenna are arranged at the upper end of the installation seat, and the first antenna and the second antenna are fixed by using a connecting rod. A receiving device used for receiving satellite signals is fixedly installed on the outer surface of the first antenna, the first antenna and the second antenna are of a parabola structure, reflection focuses are located on the receiving device, and a gap is reserved between the first antenna and the second antenna. According to the signal receiver for satellite communication, a novel structural design is adopted, the antenna structure of the device is divided into the first antenna and the second antenna, the first antenna and the second antenna are fixed through the connecting rod, airflow rapidly overflows through a gap between the first antenna and the second antenna when the front face is subjected to wind, the impact force on the whole device is reduced, and the service life of the device is prolonged. Therefore, a better wind-resistant effect is achieved, and the overall stability of the device is improved.

The invention belongs to the technical field of logging while drilling, and provides a full-component minimum symmetry compensation antenna system and a logging while drilling electromagnetic wave resistivity logging method.The full-component minimum symmetry compensation antenna system comprises a drill collar body, a first transmitting antenna, a second transmitting antenna, a first receiving antenna, a second receiving antenna, a third receiving antenna and a fourth receiving antenna; the first transmitting antenna and the second transmitting antenna are obliquely orthogonal in space, and magnetic moment vectors are respectively arranged on an XZ plane and a YZ plane and form a first inclination angle with a Z axis; the first receiving antenna, the second receiving antenna, the third receiving antenna and the fourth receiving antenna are arranged in a mirror image mode along the midpoint of the first transmitting antenna and the midpoint of the second transmitting antenna, and magnetic moment vectors of the first receiving antenna and the fourth receiving antenna are arranged on the XZ plane and form a second inclination angle and a negative second inclination angle with the Z axis respectively. And the magnetic moment vectors of the second receiving antenna and the third receiving antenna are arranged on the YZ plane and respectively form a second inclination angle and a negative second inclination angle with the Z axis.

A high-precision temperature control radar antenna array plane disclosed by the present invention comprises a radar cabin, a radio frequency module installed in the radar cabin, and an antenna unit installed outside the radar cabin, the radar cabin is internally provided with a first area, a second area, a fluid circulation path and a temperature control device, and the fluid circulation path is communicated with the first area, the second area and the temperature control device. The first fluid processed by the temperature control equipment is conveyed into the first area through the fluid circulation channel to exchange heat with the radio frequency module to form second fluid, then the second fluid is guided to enter the second area to exchange heat with the second area to form third fluid, and finally the third fluid is guided to flow back to the temperature control equipment to form circulation. The temperature control device is used for adjusting the temperature and the air volume of the fluid medium flowing through the first area, so that the environment temperature of the first area is accurately adjusted and controlled, it is ensured that the temperature field around the radio frequency module in the first area is uniform and consistent, and it is ensured that the system can meet the telecommunication requirements under various working conditions.

This application provides a wireless access device and a communication system, and relates to the field of communication device technologies, to resolve a problem of how to increase a coverage area of a high-gain antenna, improve a response speed, and enhance operation stability while ensuring a high gain of the wireless access device. The wireless access device includes a housing, a plurality of directional antennas, and a driving apparatus. The plurality of directional antennas are disposed in the housing and are distributed along a ring array, and a central axis of the ring array of the plurality of directional antennas is a first axis. Each directional antenna radiates a signal in a direction away from the first axis. Beams of the plurality of directional antennas are respectively located in a plurality of sectors, the plurality of sectors are disposed around the first axis, and vertices of the plurality of sectors are located on the first axis. The driving apparatus is disposed in the housing, and the driving apparatus is configured to drive the plurality of directional antennas to rotate relative to the housing, to respectively adjust beam directions of the plurality of directional antennas in the plurality of sectors. The wireless access device provided in this application is used for home wireless coverage.

The invention discloses a portable transportable antenna capable of being rapidly deployed. The portable transportable antenna comprises a reflecting surface assembly, a back frame assembly, a rotary table assembly and a supporting assembly. The supporting assembly is connected with the orientation rotating end of the rotary table assembly through a stand column, and the pitching rotating end of the rotary table assembly drives the back frame assembly and the reflecting surface assembly to move. The core of the device is that the supporting assembly adopts a unique quick disassembly and assembly structure: the supporting legs are quickly connected with the stand columns through ball head positioning pins and manual locking handles; a side pull rod for connecting the upright post and the supporting leg is formed by quickly screwing an upright post side pull rod and a supporting leg side pull rod through a multi-head thread joint; manual leveling devices are arranged at the bottoms of the supporting legs, and it is ensured that erecting is horizontal. The rotary table assembly integrates azimuth and pitching double-axis movement, is driven by a low-voltage direct-current servo motor, is transmitted through reducing mechanisms such as a worm gear and a worm, operates stably and can be self-locked. The reflecting surface assembly is designed in a split mode, and quick assembly is achieved through spigot positioning and quick lock catches. According to the invention, the portability, the erection speed and the operation convenience of the antenna are obviously improved, and the antenna is especially suitable for emergency communication and other occasions needing rapid deployment.

The application provides an antenna system and a communication device, relates to the technical field of communication, and aims to solve the problem of large windward area of the antenna system. The antenna system provided by the application comprises a first antenna and a second antenna; the first antenna comprises a first antenna cover, a first radiation component and a feed network, and the second antenna comprises a second antenna cover and a second radiation component; the first antenna cover has a first outer surface, the first outer surface has a groove; the first radiation component is arranged at the side of the groove, and the feed network is arranged in the first antenna cover and connected with the first radiation component; the second antenna cover has a second outer surface, the second radiation component is arranged in the second antenna cover, and at least part of the second outer surface extends into the groove. In the antenna system provided by the application, the first antenna and the second antenna are two independent antennas, and when the two antennas are used in combination, the thickness size is not obviously increased, so that the windward area is reduced.

The invention discloses an intelligent control system and method for a spherical inflatable antenna. The system comprises a man-machine interaction module, a control module, a data storage module, a sensor sensing module, a motor driving module, a high-stability antenna base supporting module, an air pressure adjusting module and an intelligent early warning module. The man-machine interaction module is used for scene selection, parameter configuration and state display and issuing an instruction to the control module; the sensor sensing module is used for collecting information and uploading the information to the control module; the control module is used for trajectory planning, cooperative inverse kinematics solution, pose control and stability judgment; the motor driving module drives the high-stability antenna base supporting module to complete azimuth and pitching motion; the air pressure driving module executes air supply, pressure relief and pressure stabilization to regulate and control the air pressure of the cavity; the data storage module is used for recording information; the intelligent early warning module is used for outputting an alarm and triggering protection control when the air pressure is abnormal, the posture is abnormal or the execution mechanism is abnormal. The communication stability can be improved, and the operation difficulty is reduced.

The application belongs to the technical field of antennas, and particularly relates to a bias-fed microwave antenna, which comprises a base, a pot surface antenna is arranged on the top of the base in an inclined mode, a supporting plate is arranged between the rear side of the pot surface antenna and the base, the bottom of the supporting plate is hinged to the base, a connecting column is fixedly connected to the position close to the top on the front side of the supporting plate, the connecting column is vertically rotatably connected to the rear side of the pot surface antenna, and the rear side of the supporting plate is hingedly connected to the base in an inclined mode. In the process of use, when an object hits the high-frequency head, the fixing device can convert part of the impact force of the object on the high-frequency head into the internal energy of the buffer device, so that the high-frequency head is prevented from being damaged due to the impact, and after the object is separated from the high-frequency head, the buffer device can automatically restore the high-frequency head to the original position through the fixing device, so that the normal signal receiving of the high-frequency head is not affected.

This invention relates to the field of antenna protection technology, and more particularly to an easy-to-install antenna protective cover. It includes: a base with a rubber pad embedded in its lower part; a protective shell rotatably connected to the base; symmetrically distributed first ventilation openings on the lower part of the protective shell; a guide rod fixed inside the protective shell; and symmetrically distributed first and second baffles slidably connected to the guide rod; a winding frame rotatably connected inside the protective shell; and a winding wheel located below the winding frame. Connecting ropes are provided between the first baffles and the winding frame, and between the second baffle and the winding wheel. This invention, by adjusting the positions of the first and second baffles, allows the gas inside the protective shell to exchange with the outside environment when the external wind speed is low. This allows the flowing gas to carry away the heat generated by the antenna, ensuring the normal operation of the antenna.

The invention relates to the technical field of satellite signals, and discloses a satellite signal receiving device for outdoor mobile communication, which comprises a turbulent flow assembly arranged on one side of a bottom plate and an adjusting assembly arranged on one side of the bottom plate, the turbulent flow assembly comprises two sets of sliding grooves, sliding blocks are slidably embedded in the two sets of sliding grooves in the horizontal direction, supporting rods are fixedly connected to one sides of the outer surfaces of the two sets of sliding blocks, and flow guide plates are fixedly connected to one sides of the outer surfaces of the multiple supporting rods; the invention aims to solve the problems of signal intensity fluctuation, transmission interruption, signal loss and the like caused by high-frequency jittering of an antenna and damage to the alignment precision of a signal tracking mechanism due to direct action of head-on airflow on an antenna body and a mounting base and easy formation of eddy current on the surface of the antenna when a vehicle runs. And meanwhile, continuous load generated by airflow impact can intensively act on a base connecting part, so that bolts are easy to loosen, the base deforms, and the service life of equipment is shortened.

The application relates to an antenna networking device, wherein a lateral reflecting plate of one multi-frequency antenna is arranged in parallel with a forward reflecting plate of another multi-frequency antenna, that is, lateral radiation units on the lateral reflecting plate of one multi-frequency antenna are networked with forward radiation units on the forward reflecting plate of another multi-frequency antenna, super multi-frequency networking is realized, that is, multiple radiation units of one operator can be arranged on different multi-frequency antennas, the height size of the antenna networking device is reduced, aperture coupling is reduced, and the antenna performance is improved; in addition, the lateral reflecting plate and the forward reflecting plate are arranged at an acute angle, and when multiple multi-frequency antennas are arranged in sequence and at intervals around the circumference of a site, the overall size is reduced, the wind load is reduced, the antennas can be arranged in a compact space, the requirements of multiple operators for antenna co-construction and sharing are met, and the construction, operation and maintenance costs are greatly reduced.

This application relates to the field of communication technologies, and provides an antenna, an antenna feeder system, and a base station, to provide an antenna that can balance a beamforming capability and safety. The antenna includes a first antenna array and a second antenna array. The first antenna array and the second antenna array can rotate relative to each other. Therefore, the antenna provided in this application can balance the beamforming capability and safety in different wind force conditions by reducing an antenna surface area of the antenna.

An aircraft through-the-rotor beyond line of sight (BLOS) satellite communication (SATCOM) system may include a access panel frame. An aircraft through-the-rotor beyond line of sight (BLOS) satellite communication (SATCOM) system may include at least one removable antenna mounting plate. An aircraft through-the-rotor beyond line of sight (BLOS) satellite communication (SATCOM) system may include an access panel door. An aircraft through-the-rotor beyond line of sight (BLOS) satellite communication (SATCOM) system may include a circumferential base connected to the access panel frame. An aircraft through-the-rotor beyond line of sight (BLOS) satellite communication (SATCOM) system may include an antenna compartment positioned on top of the circumferential base. An aircraft through-the-rotor beyond line of sight (BLOS) satellite communication (SATCOM) system may include a terminal mounting plate positioned proximal, and connected to, a modem mount.

The invention provides an antenna system and communication equipment, relates to the technical field of communication, and aims to solve the problems of large windward area and the like of the antenna system. The antenna system provided by the invention comprises a first antenna and a second antenna, the first antenna comprises a first radome, a first radiation assembly and a feed network, and the second antenna comprises a second radome and a second radiation assembly; the first antenna housing is provided with a first outer surface, and the first outer surface is provided with a groove; the first radiation assembly is arranged in the groove, and the feed network is arranged in the first antenna housing and is connected with the first radiation assembly; the second antenna housing is provided with a second outer surface, and at least one part of the second outer surface extends into the groove. In the antenna system provided by the invention, the first antenna and the second antenna are two mutually independent antennas, and when the two antennas are combined for use, the thickness size is not obviously increased, so that the windward area is favorably reduced.

The present invention relates to a base station antenna for lowering wind loads, the base station antenna comprising: an antenna housing having a front surface, a rear surface, a first side surface, and a second side surface; a top end cover and a bottom end cover, the top end cover and bottom end cover being arranged at an upper end and a lower end of the antenna housing to define an interior cavity; and a radiating element located within the interior cavity and configured to transmit and receive radio frequency signals, wherein the front surface has a recessed profile feature in an intermediate section, and the rear surface has a rib profile feature in an intermediate section.

This disclosure provides an antenna, an antenna system, and a vehicle, and pertains to the field of wireless communication technologies. The antenna includes a main antenna, a parasitic antenna, and a mainboard, where the main antenna and the parasitic antenna are both located on a surface of the mainboard, and a plane on which the main antenna is located and a plane on which the parasitic antenna is located are parallel, and are opposite to each other. A feeding point of the main antenna is connected to a feeding transmission line of the mainboard, and the parasitic antenna is connected to a second ground end of the mainboard. A difference between a resonance frequency point of the main antenna and a resonance frequency point of the parasitic antenna is less than a target threshold. The antenna is used in a vehicle and is used as a communication antenna of the vehicle, for example, is used as a 4G communication antenna or a 5G communication antenna, to implement 4G or 5G wide bandwidth coverage, for example, full bandwidth coverage. In addition, the antenna can further improve an out-of-band suppression degree and improve an anti-inter-frequency interference feature.

The invention discloses a protection device for a radar antenna, which is arranged on the outer side of a radar rotating part and a radar driving part, and comprises a brake supporting seat, a brake main body structure and a brake power structure, and the brake supporting seat is used for supporting the radar rotating part, the radar driving part and the protection device; the braking main body structure comprises a first braking mechanism and a second braking mechanism, the first braking mechanism is movably connected to the braking supporting seat, and the second braking mechanism is fixedly connected to the radar rotating part; the brake power structure is arranged on the brake supporting seat and is movably connected with the first brake mechanism; when the radar rotating part enters a braking state, the braking power structure drives the first braking mechanism to press the second braking mechanism for braking; when the radar rotating piece enters the rotating state, the braking power structure drives the first braking mechanism to break away from the second braking mechanism to release the braking state. By adopting the structural design of friction braking and mechanical limiting, the protection capability and the operation reliability of the radar station are improved.

The application provides a kind of folded dipole base station antenna with extremely low profile, belongs to mobile communication technical field, is related to the structure of base station antenna, solves the various limitations problems existing in the structure of existing base station antenna;Including main radiator, secondary radiator, dielectric plate and metal ground plane;Main radiator is arranged on the upper surface of dielectric plate, secondary radiator is arranged on the lower surface of dielectric plate, and metal ground plane is arranged below dielectric plate;Feed port is arranged between main radiator and secondary radiator, feed port passes through dielectric plate, and is connected with main radiator and secondary radiator respectively, and feed port is used to provide feed for main radiator and secondary radiator in differential feed mode;The application provides feed in differential feed mode, so that the base station antenna has good radiation performance, and also has the advantages of extremely low profile, high gain and good directivity, reduces the antenna volume, realizes the miniaturization of antenna, reduces wind resistance and reduces the cost of antenna installation and future maintenance.

The invention discloses an X-band unmanned aerial vehicle omnidirectional broadband antenna, and relates to the technical field of antennae, three layers of metal radiation patch lamination and coaxial line feeding are adopted, a gradient hollow metal column inner wall spiral channel is filled with ceramic microbeads, the middle layer is provided with an opening annular coupling ring, and a miniature salient point is fixedly matched with an elastic sheet to adjust the angle. The antenna has the advantages that the upper, middle and lower layers of metal radiation patches are designed, rectangular and hexagonal combined branches are integrated on each layer and are distributed in a central symmetry manner, and frequency division is realized in combination with differential design of the number, the size and the rotation angle of the multiple layers of branches; the upper layer resonance high frequency band, the lower layer resonance low frequency band and the middle layer are connected and transited, and meanwhile, the superimposed effect of three layers of patch radiation fields is utilized to counteract a directional diagram depression, so that the effect of cooperative implementation of broadband coverage and H-plane 360-degree omnidirectional radiation is achieved, and the problems of narrow band limitation and uneven radiation direction of a traditional patch antenna are effectively broken through.

An antenna arrangement is provided for radiating a tilted beam in a preferred direction with minimal beam distortion. The apparatus includes one or more radiating elements, each radiating element including a dielectric block, and a differential feed leaky-wave antenna and a set of conductive tracks disposed on a top surface of the dielectric block. The conductive track is arranged to guide radio waves radiated by the antenna along a radiation direction. The antenna device further comprises a transverse magnetic (TM) mode reflection structure, a first transverse electric (TE) mode reflection structure, and a second TE mode reflection structure, and the antenna device further comprises a second transverse magnetic (TE) mode reflection structure, a second transverse electric (TE) mode reflection structure, a third transverse electric (TE) mode reflection structure, a fourth transverse electric (TE) mode reflection structure and a fourth transverse electric (TE) mode reflection structure. The TM mode reflection structure is disposed below a bottom surface of the dielectric block of each radiating element for reflecting a TM mode of the radio wave toward the conductive track. The first TE mode reflective structure is arranged such that, in each radiating element, the antenna is arranged between the first TE mode reflective structure and the conductive track. The first TE mode reflection structure is configured to reflect the TE mode of the radio wave toward the conductive track. The second TE mode reflecting structure is arranged behind the conductive track in each radiating element in the radiating direction, and is used for reflecting the TE mode of the radio wave towards the conductive track.