71 results about "Parabolic antenna" patented technology

The invention relates to the field of satellite communication, and discloses a parabolic antenna pointing tracking method in an inter-satellite communication scene, and the method comprises the following steps: carrying out the attitude initialization, dynamic prediction, error compensation and closed-loop control, and achieving the high-precision satellite tracking of an antenna. The method adapts to large dynamic changes of target satellites and ensures stable and reliable communication; the invention discloses a parabolic antenna pointing tracking system in an inter-satellite communication scene. The system comprises an antenna angle sensor module, a signal receiving module, a prediction module, an error compensation module and a closed-loop control module. According to the method, orbit prediction, an extrapolation algorithm, adaptive control and a closed-loop feedback mechanism are fused, and high-precision and high-robustness antenna satellite tracking is realized. The method can adapt to large dynamic change of a target satellite, reduces dependence on real-time position information, still keeps stable communication under the condition of orbit sudden change or data missing, and improves system reliability and engineering practicability.

This invention introduces a suspended telecommunications system utilizing gas-lift hydrogen-filled balloons for global internet access and secure encrypted communication analysis. Utilizing this gas-lift technology, it deploys an airborne antenna platform stabilized by lightweight carbon fiber structures and secured by ground-based cables. The system integrates various antennas, including parabolic and Starlink dishes, dynamically adjusting for optimal signal reception from terrestrial and satellite sources. a high-frequency amplifier-dissipator and an AI-enhanced ground processing center facilitate the interception and decryption of encrypted communications, filtering potential security threats. The platform features motorized rotating plates, efficient power management, and GSM / Wi-Fi modules for enhanced connectivity. Constructed with composite materials for durability and minimal weight, it includes built-in lighting for visibility and emergency signaling. The system presents an innovative, cost-effective, and scalable solution for global telecommunication coverage and secure communication monitoring, addressing national and social security concerns while ensuring reliable access to digital information worldwide.

The invention relates to the technical field of satellite communication, and discloses a parabolic antenna pointing prediction and tracking method of an inter-satellite communication antenna servo system, which comprises the following steps of: acquiring current attitude measurement data of an antenna and a signal quality parameter of a communication link; calculating a link health degree index according to the signal quality parameter of the communication link; dynamically adjusting a process noise covariance matrix in an extended Kalman filtering model for state prediction based on the link health degree index; performing optimal state estimation on the pointing state of the antenna at the future moment by using an extended Kalman filtering model of the dynamically adjusted process noise covariance matrix; and generating and executing a servo control instruction according to the optimal state estimation. According to the method, the actual quality parameter of the communication link is quantified into the health degree index to dynamically adjust the process noise covariance of the prediction filtering model, and the robustness and tracking precision of the system under complex disturbance are improved.

The invention discloses an automatic unfolding parabolic antenna with a flexible surface and a fixed surface combined, and belongs to the field of antennas. The antenna comprises a center body, a reflecting surface, a folding driving mechanism, an annular adjusting mechanism, an auxiliary surface, an auxiliary surface supporting structure and a feed source, wherein a feed source supporting cylinder plays a role in overall supporting. Wherein the fixed surfaces and the flexible surfaces are arranged at intervals to form an antenna reflecting surface, when the system works, the folding driving mechanism adopts an electric unfolding and folding mode to realize full-automatic unfolding and folding actions of the reflecting surface, and after the antenna is unfolded, the surface shape precision of the flexible surfaces can be adjusted through the annular adjusting mechanism. The invention provides a flexible and fixed surface combined reflecting surface structure form for the first time, and full-automatic unfolding and folding of the whole reflecting surface are realized. A traditional manual assembly mode is broken through, the maneuvering performance of the large-diameter vehicle-mounted antenna is effectively improved, the antenna opening time is shortened to be within 15 minutes, and the position precision of the antenna when the antenna is unfolded again is guaranteed while the maneuvering performance is improved.

A radio communication route enables communication from an originating ground station to a destination ground station via one of multiple randomly orbiting satellites with no active attitude control. The ground stations and satellites include multi-feed parabolic antennas for receiving radio signals from and transmitting radio signals in multiple directions. The satellites store an address of a destination ground station from which an initial information signal is transmitted and antenna information identifying the satellite antenna feed on which the initial information signal was received. Plural satellite antennas transmit linking information identifying the satellite to the originating ground station. Data transmissions received at the originating ground station that designate a particular destination are transmitted by the originating ground station using the antenna on which the linking information was received and the satellite retransmits the data transmission using the satellite antenna feed identified by the stored antenna information.

The invention discloses a photovoltaic power generation antenna with a microwave receiving function, and relates to the technical field of antennae, the photovoltaic power generation antenna comprises an antenna main body and an antenna mounting bracket, the antenna main body is of a paraboloid structure, and a photovoltaic power generation assembly and a microwave receiving assembly are arranged on the paraboloid of the antenna main body. The antenna perfectly inherits the advantages of high gain and strong directivity of a parabolic antenna, directly faces high-performance application scenes such as satellite signal receiving, creatively provides a layered coplanar structure in which a metal net covers a photovoltaic battery piece, the metal net serves as a reflecting surface of microwave signals, and the metal net serves as a reflecting surface of the microwave signals. Meanwhile, the net structure allows sunlight to be transmitted to the photovoltaic battery piece on the lower layer, physical integration is achieved, one-face double-work is further achieved, the same paraboloid is an efficient light energy collecting face and a high-performance microwave signal reflecting face, and the possible defects of a planar integrated antenna in gain are overcome.

A reflector panel (1) of a parabolic antenna (4) has a front reflector surface (2) and a rear rib-like structure (3) connected thereto, the reflector surface (2) being integrally formed with the rib-like structure (3) and the rib-like structure (3) being fixedly assigned a reinforcing structure (12).

This invention introduces a suspended telecommunications system utilizing gas-lift hydrogen-filled balloons for global internet access and secure encrypted communication analysis. Utilizing this gas-lift technology, it deploys an airborne antenna platform stabilized by lightweight carbon fiber structures and secured by ground-based cables. The system integrates various antennas, including parabolic and Starlink dishes, dynamically adjusting for optimal signal reception from terrestrial and satellite sources. a high-frequency amplifier-dissipator and an AI-enhanced ground processing center facilitate the interception and decryption of encrypted communications, filtering potential security threats. The platform features motorized rotating plates, efficient power management, and GSM / Wi-Fi modules for enhanced connectivity. Constructed with composite materials for durability and minimal weight, it includes built-in lighting for visibility and emergency signaling. The system presents an innovative, cost-effective, and scalable solution for global telecommunication coverage and secure communication monitoring, addressing national and social security concerns while ensuring reliable access to digital information worldwide.

A method for manufacturing a mirror surface plate for a parabolic antenna according to the present disclosure is characterized by comprising: a step in which an original form (29) of a mirror surface plate for a parabolic antenna is fabricated through additive manufacturing in a directed energy deposition (DED) method using, as a filler material, a material for forming an intermetallic compound (16) at an interface with a mold material (9, 10, 11) serving as a mold of the mirror surface plate for a parabolic antenna when the material is dissolved in or mixed with the mold material (9, 10, 11), said material being different from the mold material (9, 10, 11); a step in which the original form (29) of the mirror surface plate for a parabolic antenna is peeled from the mold material (9, 10, 11) and released therefrom; and a step in which the original form (29) of the mirror surface plate for a parabolic antenna is subjected to mirror finishing.

The invention relates to the technical field of satellite signal receivers, in particular to a computer signal safety receiving device which comprises a rotating seat, a base plate, a rack, a parabolic antenna, a first hydraulic oil cylinder and a receiver, the base plate is horizontally installed at the top of the rotating seat, and the rack is installed at the right end of the upper surface of the base plate; the parabolic antenna is installed at the left end of the rack through a pin shaft, and the parabolic antenna can be driven by the rotating base to rotate so as to transmit satellite signals. The parabolic antenna is prevented from physical deformation fundamentally, the problems of electromagnetic wave reflection direction deviation, feed source receiving semaphore reduction and the like caused by antenna deformation are solved, mechanical loss caused by antenna deformation is reduced, the service life of the parabolic antenna is remarkably prolonged, the full-coverage bird repelling effect of day-time CD-ROM drive and day-night sound drive is achieved, and the bird repelling effect is improved. Energy is saved, the fault risk of complex electronic bird repelling components is avoided, and the bird repelling success rate is greatly increased through a double threatening mode.

The invention discloses a multi-band multi-feed source focus shifting device and method for a GSO satellite parabolic antenna, and the device comprises a focus shifting fixed ring body which is provided with a plurality of feed sources, a transmission gear is engaged with an outer ring gear of the focus shifting fixed ring, and a control motor drives the focus shifting fixed ring to rotate through the transmission gear; wherein the ring surface of the focus-shifting fixing ring is perpendicular to the axial direction of the antenna, and when the feed source rotates along with the focus-shifting fixing ring, the center rotation path of the feed source passes through the focus of the antenna. According to the invention, through a mode of rotation control of the receiving feed source, measurement with highest gain at different frequency bands can be realized, measurement of ground weak electronic signals by a GSO satellite can be satisfied, results of non-specific targets, rapid discovery and positioning monitoring can be solved, and debugging of each frequency band and debugging of other frequency bands are ensured not to influence each other. The method has the advantages of rapidness, accuracy, convenience in assembly, easiness in expansion and the like.

The application discloses a kind of multi-ring periphery parallel networking antenna based on double shear fork unit, it is related to aerospace technology field, by nineteen configurations, size identical six-prism module unit is formed, each six-prism module unit is regarded as a ring periphery type antenna, and entire antenna is formed by each module unit parallelly, each module unit is connected by connecting unit, each six-prism module unit is formed by six groups configuration, size identical double shear fork unit, the drive of double shear fork unit is located on each module six corners.The technical scheme of the application can provide reference value for the design of super-large aperture parabolic load antenna, and is beneficial to decoupling in the deployment process, expanding simple parabolic antenna design, so that the antenna can adapt to higher working frequency and has a wider frequency band, and then the anti-reconnaissance of the antenna is enhanced through frequency hopping communication technology and spread spectrum communication technology.

The invention belongs to the technical field of communication devices, and particularly relates to a communication device for a communication vehicle, which comprises a mounting plate, a controller is fixedly connected to the upper side wall of the mounting plate, a mounting ring is fixedly connected to the upper side wall of the mounting plate, and a rotating table is rotatably connected to the outer wall of the mounting ring through a bearing. And the upper side wall of the mounting plate is fixedly connected with an adjusting motor. When the middle area of the parabolic antenna carried on the communication vehicle is locally sunken, the reflecting surface and accurate paraboloid form can be quickly recovered, gain attenuation, sidelobe level rise and noise coefficient rise caused by damage of a core area are avoided, and communication continuity and stability of scenes such as emergency communication and on-site command are guaranteed; and the service life of the antenna is prolonged, the equipment utilization rate is increased, repair can be completed without parking and dismounting, and the task reliability and the operation and maintenance efficiency of the communication vehicle in a complex environment are greatly improved.

The invention discloses a structure and a preparation method of a self-dimensional pure flexible fabric parabolic antenna, and belongs to the technical field of spherical inflatable antennas. The structure comprises a flexible fabric, a conductive silica gel layer and a plurality of silica gel ribs, criss-cross gradient thickness silica gel ribs are arranged on the back of the flexible fabric, non-uniform tension is induced during inflation expansion through the hyperelasticity and strain hardening effect of silica gel, the spherical surface of the flexible fabric is forced to spontaneously converge to a target paraboloid equation, and the outer surface of the flexible fabric is covered with a conductive silica gel layer. The method comprises the following steps: S1, laminating the flexible fabric and the conductive silica gel layer by adopting a vacuum laminating process; s2, manufacturing silica gel ribs on the non-reflecting surface of the flexible fabric; and S3, manufacturing silica gel ribs on the reflecting surface of the flexible fabric. According to the invention, the flexible silica gel is used as a reinforcing strip to realize the structural form of the self-dimensional effect of the antenna. The defect that deformation depends on single pneumatic control is overcome, folding resistance and high and low temperature resistance are achieved, and meanwhile good conductivity is achieved.

The utility model provides a feed source assembly and a parabolic antenna, and the feed source assembly comprises a housing which is provided with an accommodation cavity; the reflecting plate is arranged on the shell and is accommodated in the accommodating cavity; the vibrator is arranged on the reflecting plate and is accommodated in the accommodating cavity; the supporting tube is arranged on the shell, the supporting tube and the vibrator are distributed at intervals, the supporting tube is provided with a wire passing channel communicated with the containing cavity, and the wire passing channel is used for a coaxial cable to penetrate through so that the two ends of the coaxial cable can be connected with the vibrator and the signal source respectively; the connecting disc is arranged at one end, far away from the shell, of the supporting pipe, and the connecting disc is used for being connected with a supporting frame of the parabolic antenna; and the coaxial cable penetrates through the wire passing channel and is connected with the vibrator, and the coaxial cable is used for being connected with a signal source. Signals of the feed source assembly are transmitted through a coaxial cable instead of a circular waveguide, so that the diameter of the supporting tube is smaller than that of the circular waveguide. Moreover, the diameter of the supporting tube is far smaller than the diameter of a circular waveguide which has the same frequency and is used for transmitting microwave signals, so that the size of the feed source assembly is greatly reduced, the loss of electrical performance can be reduced, and the weight of the parabolic antenna is reduced.

The utility model provides an antenna device. The antenna device comprises a phase array antenna and a waveform adjusting accessory. The phased array antenna transmits a radio frequency signal. The waveform adjustment accessory is configured to reflect or refract a radio frequency signal to form a beam. The antenna device provided by the utility model can be configured into a parabolic antenna or a lens antenna with a beam forming function.

The utility model belongs to the field of antennas, and particularly relates to a positionable rotary support for a parabolic antenna, which comprises a mounting part and a base, one side of the mounting part is provided with a mounting position for mounting the parabolic antenna, and the base is rotatably and movably connected with the other side of the mounting part. A locking assembly used for locking or unlocking the positions of the installation piece and the base is further arranged between the installation piece and the base. According to the utility model, after the base is installed at the installation position, the parabolic antenna can be installed through the installation piece, when the angle of the parabolic antenna is adjusted in a rotating mode, the parabolic antenna does not need to be detached from the installation piece, the position between the base and the installation piece can be unlocked by controlling the locking assembly, and the base and the installation piece can rotate relatively, so that the angle of the parabolic antenna can be adjusted. The angle of the parabolic antenna on the mounting piece is adjusted through relative rotation of the parabolic antenna and the mounting piece; a large amount of workload is reduced in the process, and operation is more convenient; and the danger during high-altitude disassembly and assembly operation can be avoided.

A parabolic antenna made up of solar cell element panels in a honeycomb mesh (regular hexagonal lattice) pattern

This invention relates to a method for manufacturing a high-precision, low-stress machining support device for a parabolic antenna reflector, belonging to the field of carbon fiber composite material machining. The method involves manufacturing a machining support; the machining support is a right-angled triangular frame structure; the machining support includes a horizontal plate, a vertical plate, and diagonal ribs; mounting through holes are made in the vertical plate; four positioning connection holes and three countersunk pin holes are provided around the mounting through holes on the vertical plate surface; a machining ring is manufactured; threaded holes are provided circumferentially on the machining ring; the machining ring is installed on the vertical plate of the machining support; the reflector body is overlapped onto the machining ring and fixedly connected. This invention solves the problem of high-precision, low-stress machining of parabolic antenna reflectors, and the device can be used for high-precision, low-stress machining of parabolic antenna reflectors.

This antenna device is provided with a first array antenna provided with a plurality of antenna elements, a first horn antenna for performing at least one of transmission to and reception from the first array antenna, a second horn antenna being a primary radiator, a transfer path for transferring a signal between the first horn antenna and the second horn antenna, and an adjustment mechanism for adjusting directivity of at least one of an output signal from the second horn antenna and an input signal to the second horn antenna. The adjustment mechanism is at least one of a parabolic antenna and a lens.

The present invention provides a processing device and a manufacturing method for a parabolic antenna, including a conveying mechanism, a clamping mechanism, a processing mechanism, and a flipping mechanism; the conveying mechanism is used for conveying the antenna panel and includes a first conveyor belt and a second conveyor belt; the flipping mechanism is arranged between the first conveyor belt and the second conveyor belt and is used for flipping the antenna panel. The flipping mechanism is slidably arranged on a fixed base, and the antenna panel is flipped to the second conveyor belt after being conveyed by the flipping mechanism on the first conveyor belt; there are two pairs of clamping mechanisms, which are respectively arranged on both sides of the first conveyor belt and the second conveyor belt and are used for clamping the antenna panel; there are two processing mechanisms, which are respectively arranged above the first conveyor belt and the second conveyor belt, and include a rotating component, an inclined component, and a processing component that are connected in sequence. Through the above structure, the antenna panel can be processed on both sides by the same device, and through the assembly line processing of the conveyor belt, the antenna panel can be processed in batches, improving the processing efficiency.

The application relates to an antenna tracking method, device, system, storage medium and computer program product. The method comprises the following steps: acquiring a target beam width corresponding to a multi-satellite system, the radiation range of the target beam width being capable of covering the multi-satellite system, and the multi-satellite system comprising a plurality of satellites; determining defocusing information corresponding to a feed according to the target beam width and the position of the feed at the current moment, the defocusing information comprising position information of the position of the feed deviating from the focal position of a parabolic antenna; and moving the feed based on the defocusing information, so that the width of an antenna beam radiated by the parabolic antenna matches the target beam width. The method can realize stable tracking and communication of the multi-satellite system.

The utility model discloses a kind of bipolarity radiating antennas, including antenna mast and parabolic antenna being set on antenna mast, including the assembly component being set between antenna mast and parabolic antenna, assembly component includes connecting frame, right-angle frame, fixed part and arc piece;Connecting frame and right-angle frame are set between antenna mast and parabolic antenna, for assembling and fixing to parabolic antenna, fixed part and arc piece are clamped in the outer wall of antenna mast, the utility model is installed in the top side of antenna mast by connecting frame and right-angle frame on assembly component, then fixed part and arc piece clamped installation in the outer wall of antenna mast, twice stable installation can be carried out to parabolic antenna;While adjustable fixed part and arc piece, according to the size of different antenna mast, flexible matching corresponding radian accessory, to increase the contact area when clamping and fixing, further strengthen the stable effect after installation.

The invention provides a small-size double-parabolic antenna low-orbit terminal tracking method. The method comprises the following steps: calculating a target geographic azimuth angle and a pitch angle of a target in a geographic coordinate system; measuring a course angle, a pitch angle and a roll angle of a carrier and a current azimuth angle, a pitch angle and a third axis angle of an antenna; calculating a target carrier azimuth angle and a pitch angle of the target under the carrier coordinate system; according to the obtained target geographic azimuth angle and pitch angle, the carrier course angle, pitch angle and roll angle and the current azimuth angle of the antenna, an azimuth pitch type control strategy is adopted to solve the control azimuth angle of the antenna, and the current angle of the azimuth axis of the antenna is adopted as a coordinate rotation constraint condition to solve the control pitch angle of the antenna and the angle of the third control axis of the antenna; and each axis of the antenna is controlled to rotate to a target angle, so that the beam of the terminal antenna points to the target. The problems of antenna elevation angle threshold setting, tracking mode switching, recalculation and the like do not need to be considered, and the tracking algorithm is simple.

We generally describe an antenna, in particular a parabolic antenna, comprising: a primary reflector, in particular a parabolic dish, a feed antenna and / or a secondary reflector 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 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, and an actuator unit 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 present invention relates to a multi-beam feed structure with multiple frequency bands and a design method thereof. The multi-beam feed structure with multiple frequency bands comprises: a rotating mechanism and a plurality of feed arrays, wherein the plurality of feed arrays are arranged on the periphery of the rotating mechanism along the circumference of the rotating mechanism, and the frequency bands of at least two feed arrays are different; the distances from the focal plane of each feed array in the plurality of feed arrays to the axis of the rotating mechanism are the same; the rotating mechanism can rotate under the drive of a driving mechanism, and drive the plurality of feed arrays to rotate. By arranging a plurality of feed arrays on the periphery of the rotating mechanism, and driving the feed arrays to rotate by rotating the rotating mechanism, the focal plane of the feed array with the required frequency band coincides with the focal plane of the reflector, so as to realize the replacement of the antenna frequency band and meet the multi-band working requirements of the parabolic antenna.

Corrective meta surface lens is used to reduce the illumination and spill-over losses and improve the overall efficiency of a parabolic antenna when is horn-mounted, and / or top-mounted, and / or deposited directly on the frontal reflector surface of the parabolic antenna. For the horn-mounted model, a meta surface lens is placed in front of or in the aperture of the feed horn to reduce side lobe level, which results in lower parabolic antenna spill-over losses and overall efficiency improvement by more than 40% (1.5 dB). For the top-mounted model, the meta surface lens is mounted on top of (or above) the parabolic reflector, which results in reduction in illumination losses, and greater than 70% (2.5 dB) efficiency. The meta surface lens has a wideband response, is lightweight and has a lattice structure which makes it a great candidate for withstanding wind forces.

The invention relates to the technical field of communication equipment, and provides a high-precision feed source height adjusting device based on thread rotation adjustment, which comprises a parabolic antenna, a feed source arranged in the middle of the parabolic antenna and a mounting mechanism for mounting the feed source on the parabolic antenna, the mounting mechanism comprises a mounting base and a supporting assembly connected to the mounting base and the parabolic antenna, a mounting screw protrudes from the lower surface of the feed source, a first threaded hole for threaded connection of the mounting screw is formed in the upper surface of the mounting base, and the length of the first threaded hole is larger than or equal to that of the mounting screw; and a limiting mechanism for limiting the rotation of the feed source is arranged on the mounting base. The feed source is in threaded connection with the first threaded hole of the mounting base through the mounting screw, fine adjustment of the height of the feed source is achieved, the height adjustment precision of the feed source is guaranteed, the problems that an original design scheme excessively depends on the thickness of a gasket, and the adjustment precision is insufficient are solved, and micron-level height adjustment can be achieved.