207results about "Collapsable antennas means" patented technology

The embodiment of the invention provides an antenna, a spring bar assembly, a head particle assembly and wearable equipment. The antenna comprises a sleeve and an inner rod, and the inner rod is used for sliding in the sleeve to fold or unfold the antenna; the antenna further comprises an electric connection structure which is used for connecting the sleeve and the inner rod. The spring bar assembly comprises an operating piece, two spring bars and a second elastic piece; each spring bar comprises a connecting part and a spring bar stud which are connected, the second elastic piece is connected between the two connecting parts, the axes of the two spring bar studs and the center line of the second elastic piece are collinear, and the two connecting parts are symmetrical about the center line; and the operating piece is connected with the at least one connecting part and is used for driving the at least one spring bar stud to move along the direction of compressing the second elastic piece. According to the embodiment of the invention, the product performance can be improved, and the ever-increasing requirements of users are met.

The invention discloses a low-profile dual-circularly polarized wave beam scanning folding reflection array antenna. The low-profile dual-circularly polarized wave beam scanning folding reflective array antenna comprises a lower reflective array antenna and an upper circularly polarized selection metasurface. A circular polarization plane feed source is integrated in the middle of the reflective array antenna, and beam deflection is achieved. The circular polarization selection metasurface introduces opposite phase gradients to a left-hand circular polarization wave beam and a right-hand circular polarization wave beam through spin decoupling, and then introduces opposite wave beam deflection angles. Meanwhile, due to the polarization selection function of the circular polarization selection metasurface, the profile height of the antenna is half of the focal length of a traditional reflective array. By rotating the lower-layer reflective array antenna and the upper-layer circular polarization selection metasurface, the antenna can realize simultaneous + / -42-degree pitch angle scanning and 360-degree azimuth angle scanning of left-hand circular polarization and right-hand circular polarization dual beams, and the aperture efficiency, the axial ratio, the scanning loss and other performances are good. The low-profile dual-circularly-polarized wave beam scanning folding reflection array antenna provided by the invention can realize simultaneous scanning of two circularly-polarized wave beams, and is low in profile, compact in structure, low in cost and novel in function.

The invention belongs to the technical field of communication, and particularly relates to a broadband, high-gain and circularly-polarized filtering folded transmission array antenna, which comprises a planar integrated feed source antenna, an SIW-Mini-SMP transition structure, a reflection type cross polarization converter RCPC and a transmission type metasurface TMMS capable of effectively generating circularly-polarized electromagnetic waves. The working frequency range of the antenna is 12.0 GHz to 18.3 GHz, the antenna covers the whole Ku wave band, the bandwidth is 41.6%, and the antenna has remarkable broadband characteristics; high gain is kept in the working frequency band, the peak gain is 22.64 dBic, and the advantage of high gain is shown.

The invention discloses a self-inflating underwater buoy cabin released through electromagnetic control. The self-inflating underwater buoy cabin is characterized in that a locking and disengaging device is arranged in a floating bag cabin shell; in an initial state, the buoy is folded and placed in the shell of the floating bag cabin; the lower end of the buoy is in locking connection with the locking-disengaging device. And during separation and release, after the electromagnetic valve unlocks the buoy by the locking and releasing device, the buoy is ejected upwards by the locking and releasing device, and the buoy is automatically inflated to further float and unfold by utilizing the reduction of external water pressure. Compressed gas in the pressure bottle is injected into the floating bag by utilizing the actual process that the external pressure is gradually reduced when the buoy floats upwards, so that automatic inflation is realized, the size of the buoy is further reduced by adopting the flexible antenna, and finally, the miniaturization design of the whole buoy is realized.

The utility model relates to a vehicle-mounted antenna array mechanism which comprises a base, a rotary table base, an azimuth rotary table, a pitching support arm, an interference antenna array and a high-power transmitter. The base is suitable for being installed on the installation face of the tail of a carrier vehicle. And the turntable base is used for supporting the azimuth turntable and the pitching support arm. And the azimuth turntable is arranged on the turntable base and is fixedly connected with the turntable base. One end of the pitching support arm is connected with the azimuth turntable through a rotary support, and the pitching support arm can be adjusted in pitching relative to the azimuth turntable and can rotate in the horizontal direction. The pitching supporting arm is connected with the high-power transmitter, a lifting mechanism in a traditional scheme is omitted, and the number of components is greatly reduced. And the design complexity of the antenna array control system is obviously reduced. On the premise that the normal passing performance of the vehicle is met, the antenna array can be overturned backwards to be stored in the rear portion of the vehicle carrying compartment in the non-working state, the height of the antenna array is effectively reduced, the number of components and the complex structure are reduced, and the probability of failures is reduced.

The application discloses a high-unit-direction-pattern consistency base station antenna based on parasitic resonance decoupling and edge heterostructure, and belongs to the technical field of wireless communication and antennas. The antenna comprises a metal floor, a plurality of dual-polarization antenna units arranged in a periodic array, a parasitic resonance decoupling structure between adjacent units and an edge heterostructure. The dual-polarization antenna unit adopts a miniaturized four-folded dipole structure, the parasitic resonance decoupling structure is a C-shaped metal strip printed on a dielectric substrate, and the edge heterostructure comprises a three-section metal strip at the edge of the edge unit radiator and a C-shaped metal strip with a differential height at the outermost layer of the array. The application can offset the mutual coupling between units, improve port isolation, correct the direction pattern distortion caused by the array edge truncation, realize high consistency of the direction pattern of the whole array unit, has a simple structure and is easy to assemble, does not additionally increase the volume of the antenna, is suitable for large-scale MIMO base station arrays, and can effectively improve the beamforming robustness and system transmission performance.

A precision control method for a spliced curved-surface fixed-surface antenna comprises three steps of configuration design, precision design and precision realization for the spliced curved-surface fixed-surface antenna, especially an incomplete cylindrical-surface antenna, and comprises the steps of initial configuration design, curved-surface precision reference establishment, precision transfer function determination, and fine tuning and adaptation determination. The precision design comprises precision index distribution and precision index simulation analysis, and can solve the problems that a large space deployable curved surface structure is difficult in launching state folding layout, large in multi-surface pressing error, difficult in deploying precision and rigidity maintenance, poor in overall thermal stability of an antenna and the like, and the contradiction between high-precision pointing and large errors of initial installation and butt joint.

The invention discloses a high-frequency-band and high-integration satellite-borne transmitting surface antenna, which belongs to the field of antennae, and comprises a supporting seat, a pitching pointing base is fixed on the side surface of the supporting seat, a horizontal pointing base is arranged on one side of the pitching pointing base, and a variable speed motor I is arranged on the side surface of the pitching pointing base; an output shaft of the first variable-speed motor penetrates through the side face of the pitching pointing base, the output shaft of the first variable-speed motor penetrates through the horizontal pointing base and is fixedly connected with the horizontal pointing base, a cabin plate is arranged on the side, close to the supporting base, of the horizontal pointing base, and a reflecting surface assembly is arranged on the cabin plate. A second variable-speed motor is arranged on the horizontal pointing base, an output shaft of the second variable-speed motor penetrates through the horizontal pointing base to be fixedly connected with the cabin plate, and a locking and releasing mechanism used for locking and releasing the reflecting surface assembly is arranged on the supporting base. The method has the effect of improving the assembly efficiency.

This utility model discloses an LTE antenna, relating to the field of antenna technology. It includes a circuit board (FPC); a radiating circuit formed on the front side of the circuit board through an etching process, comprising multiple frequency band resonant structures, including the LTE frequency band; a groove, the front portion of the circuit board excluding the frequency band resonant structures; a feed point, located on one end surface of the groove; a gap, located at the end of the circuit board near the feed point and extending to the middle of the circuit board; and an adhesive layer, located on the back side of the circuit board and covering the back side. The antenna is directly attached using the adhesive layer, eliminating the need for a traditional antenna bracket. Furthermore, the radiator's placement on the circuit board enhances the antenna's radiation directionality and improves radiation performance. The FPC substrate is ultra-thin and flexible, adapting to curved surfaces and significantly improving antenna integration efficiency and reliability. It is suitable for space-constrained scenarios such as IoT terminals and automotive devices.

The utility model provides an unmanned aerial vehicle ground cockpit, and relates to the field of unmanned aerial vehicle cockpits. The cockpit comprises a cabin body, a mounting base body is fixedly connected to the top of the cabin body, a display screen is fixedly connected to one side of the mounting base body, a displacement assembly connecting part is arranged on the other side of the mounting base body, and the displacement assembly connecting part is arranged on the back side of the display screen; the displacement adjusting assembly comprises a mounting base, a displacement driving device and a folding device, the displacement driving device is connected to the displacement assembly connecting part, the output end of the displacement driving device is in transmission connection with the mounting base, and an image transmission antenna connecting part is arranged on the mounting base and used for being connected with an image transmission antenna; data transmission antenna connecting parts are arranged on the two sides of the mounting base and used for being rotationally connected with a data transmission antenna, and the data transmission antenna connecting parts can be folded through a folding device. The cockpit can flexibly adjust the transmission positions of the data transmission antenna and the image transmission antenna according to the working environment.

A stereostructure spacecraft of the present invention comprises multiple deployable beam members, multiple tension members, and a spacecraft for storing the deployable beam members and the tension members. The stereostructure spacecraft is formed by deploying the deployable beam members and the tension members around the spacecraft. The deployable beam members stored in the spacecraft are deployed and arranged equidistantly in directions of multiple rotational symmetry axes, the rotational symmetry axes being rotational symmetry axes of a virtual polyhedron that is formed to have a substantial center of the spacecraft as an origin. The tension members support two end portions of two adjacent deployable beam members with tension. The respective end portions of the deployable beam members are simultaneously supported by three or more of the tension members.

The invention discloses a 5G communication equipment signal enhancement antenna folding structure which comprises a case, a sliding rail is fixedly connected in the upper side of the case, a sliding block is slidably connected in the sliding rail, a first rotating shaft is rotatably connected in the upper side of the sliding block, and a rotating disc is fixedly connected to the upper portion of the first rotating shaft. Two sets of rotating plates are fixedly connected to the upper side of the rotating disc, a second rotating shaft is rotatably connected between the rotating plates, a supporting plate is fixedly connected to the outer side of the second rotating shaft, a connecting block is fixedly connected to one side of the upper portion of the supporting plate, a lifting block is fixedly connected to the other side of the connecting block, and a connecting frame is slidably connected to the outer side of the lifting block; a connecting plate is fixedly connected to the other side of the connecting frame, four sets of rotating blocks are fixedly connected to the two sides of the upper side of the connecting plate, third rotating shafts are rotationally connected to the sides, facing each other, of the rotating blocks on the same side, antennas are fixedly connected to the sides, facing each other, of the third rotating shafts on the upper side and the lower side, and the carrying safety is improved.

The utility model is suitable for the technical field of communication equipment, and provides a rapid folding antenna for 5G communication engineering, and the antenna comprises a mounting rack which is provided with a mounting rod and a supporting rod; the guide assembly is used for being in sliding connection with the antenna assembly; the antenna assembly is provided with a connecting piece used for being connected with the guiding assembly. The mounting rack is provided with the mounting rods inserted into the supporting rods, and the supporting rods are provided with the first positioning holes, so that the connecting positions between the mounting rods and the supporting rods are adjusted, the height of the guide assemblies on the mounting rods is changed, and the mounting rack is convenient to fold; the antenna assembly is installed on the guide assembly to adjust the height of the antenna assembly, the antenna assembly is internally provided with the connecting piece rotationally connected with the guide assembly, the rotatable connecting piece is utilized to adjust the distance between the antenna assembly and the guide assembly to achieve folding of the antenna assembly, the installation steps are simplified, time and labor are saved, and efficiency is high.

The invention relates to a connecting rod driving unfolding mechanism for a large-scale deployable array plane antenna, and belongs to the technical field of spaceborne antennas. Comprising two antenna multi-layer array surface structures, a satellite platform and two groups of driving unfolding assemblies, wherein the satellite platform is horizontally placed; the two antenna multi-layer array surface structures are arranged below the satellite platform in a vertical folded state; the two driving unfolding assemblies are symmetrically arranged on the front side wall and the rear side wall of the satellite platform. Each driving unfolding assembly comprises a fixed truss, two short connecting rods, two long connecting rods, two synchronous tooth holders, a driving synchronous belt, two follow-up synchronous belts, ten belt wheels and inter-plate hinges. Power is provided for the two antenna multi-layer array surface structures to be changed from a completely folded state to an unfolded state through the two groups of driving unfolding assemblies, and the unfolding speed of the antenna multi-layer array surface structures is controlled; the connecting rod driving unfolding mechanism for the large-scale deployable array plane antenna provides unfolding power and unfolding rigidity for the antenna, and has the characteristics of high storage ratio, high rigidity, high precision and controllable unfolding.

Reflector antennas and related methods are disclosed. An example antenna includes a hub; ribs coupled to the hub; a reflective material; gold-plated clips to couple the reflective material to respective ones of the ribs; and an actuator to cause respective ones of the ribs to move relative to the hub from a folded position to an unfolded position to expand the reflective material.

An antenna assembly includes a flexible substrate configured to be extended from a retracted configuration to a deployed configuration and retracted from the deployed configuration to the retracted configuration. The antenna assembly further includes a ground plane element disposed on the substrate and a plurality of antenna elements disposed on the substrate. In the deployed configuration, the antenna assembly extends vertically away from a hull of an underwater vehicle. In the retracted configuration, the antenna assembly is retracted into the hull and / or conforms to a shape of the hull. The substrate can be attached to the underwater vehicle.

The invention discloses a satellite-borne antenna beam scanning device with a simplified structure, and the device comprises a main body unit which comprises a substrate, the substrate is fixedly connected with a plurality of supporting rods, a triangular plate is fixedly connected between the supporting rods, the triangular plate is provided with a feed source assembly, the supporting rods are fixedly connected with locking structures, and the locking structures are fixedly connected with the supporting rods. A locking structure is arranged on the base plate, an auxiliary reflecting plate is movably arranged below the locking structure, a driving assembly is arranged between the locking structure and the auxiliary reflecting plate, a plurality of reflector frameworks are movably arranged on the base plate, and flexible reflecting surfaces are arranged among the reflector frameworks. According to the invention, the rotation angle of the auxiliary reflecting plate is calculated through the geometrical relationship model, and then the auxiliary reflecting plate is adjusted to a proper angle, so that beam scanning is realized.

The invention provides a half-space beam coverage miniaturized folding magnetoelectric dipole antenna, belongs to the technical field of millimeter wave phased-array antennae, and adopts a folding magnetoelectric dipole antenna which has a wider bandwidth; broadening of a wave beam coverage range is realized based on a back-to-back H-plane array of the folded magnetoelectric dipole antenna, the wave beam coverage range can be widened on the basis of not increasing the antenna size, and the cross section size is relatively small; the E-plane beam coverage area is expanded based on the close arrangement mode, the method for expanding the E-plane beam coverage area is simple and convenient, and the complexity of the antenna structure is not increased; the antenna is smaller in size, and can achieve half-space beam coverage.

The invention relates to a multi-antenna SAR (Synthetic Aperture Radar) satellite configuration and a rocket, and the multi-antenna SAR satellite configuration comprises a satellite platform, a first antenna, a second antenna, a first solar panel and a second solar panel, the peripheral side face of the satellite platform comprises a first installation face, a second installation face, a third installation face and a fourth installation face which are sequentially arranged in the circumferential direction of the satellite platform, and the first antenna is assembled on the first installation face and can be unfolded in the direction parallel to the axis of the satellite platform. The second antenna is assembled on the second installation face and can be unfolded in the direction away from the first antenna, the first solar panel and the second solar panel are installed on the end faces of the two axial ends of the satellite platform respectively and can be stacked on the third installation face in a surrounding mode, and the fourth installation face serves as a rocket assembly face. The satellite is compact in overall configuration layout, adapts to a multi-load antenna, is high in integration level, is small in envelope size, is high in rocket adaptability, can be laterally hung and arranged at the top, improves the rocket plot ratio, and can achieve one rocket with multiple satellites.

The invention discloses a method for suppressing parasitic radiation of a folded ground plane of a bezel antenna, and relates to the technical field of foldable electronic equipment. The objective of the invention is to solve the technical problem of radiation efficiency reduction caused by parasitic frequency points generated by bending of a ground plane of a frame antenna in a folded state of the foldable electronic equipment. The method comprises the following steps: introducing a destructive resonance structure (such as an L-shaped gap, a C-shaped groove and the like) on a grounding surface of the foldable electronic equipment; and determining the position and the size of the destructive resonance structure according to the current path when the ground plane is in the folded state. By introducing the cancellation resonance structure, on the premise that the metal frame antenna does not need to be redesigned, parasitic frequency points generated by the ground plane in the folded state are effectively restrained, original working frequency points and impedance matching of the frame antenna are not remarkably affected, and the metal frame antenna has the advantages of being easy to implement and high in universality.

The utility model discloses a radar antenna rotary table which comprises a rotary table module, a folding module and an antenna installation module, the folding module is installed on the rotary table module, and the antenna installation module is installed on the folding module. The folding module comprises a working table, a first telescopic unit, a second telescopic unit, a driving motor, a first mounting seat, a second mounting seat and a connecting rod; the working table is mounted at the driving end of the rotary table module and is provided with a first mounting end, a second mounting end, a third mounting end and a fourth mounting end. According to the radar antenna rotary table disclosed by the utility model, the rotary table module, the folding module and the antenna mounting module are linked, the horizontal angle and the vertical angle of a radar antenna can be adjusted to meet different working condition requirements, and the radar antenna rotary table has the advantages of stable structure, convenience in operation, high practicability and the like.

The utility model discloses a satellite navigation receiving antenna, and relates to the technical field of GPS antennas. Comprising an antenna body and a supporting assembly, the antenna body is installed in the supporting assembly in a magnetic attraction mode, the antenna body comprises a packaging shell, a low-noise signal module, a ceramic antenna and a cable, the low-noise signal module is installed in the packaging shell, and the ceramic antenna is electrically connected to the low-noise signal module. According to the satellite navigation receiving antenna, the antenna body and the supporting assembly are used in cooperation, the fixing cassette in the supporting assembly is used for containing the antenna body, the first supporting arm, the second supporting arm, the back plate and the damping rotating shaft are used for folding and supporting, and multi-directional angle adjustment can be conducted according to needs, so that the GPS antenna has the advantage of being capable of being folded and adjusted; the problems that a traditional GPS antenna is generally directly installed on the surface of a carrier, the GPS antenna cannot be folded and unfolded, and inconvenience is easily caused are solved.

Systems and methods for elastically foldable structures are described. The high-strain composite thin-shell structures offer high stiffness to mass ratio and increased packaging efficiency, with the additional advantage that their deployment is aided by releasing the strain energy stored in the elastic folds in a controlled quasistatic manner.

The utility model relates to an electric folding and unfolding type antenna structure, and belongs to the technical field of antennas. Comprising an antenna main rod, and a reflection oscillator, an active oscillator, an adjusting oscillator and a director oscillator which are arranged on the antenna main rod, the oscillator unfolding and folding mechanism is used for unfolding and folding the oscillator; the antenna main rod unfolding and folding mechanism is used for unfolding and folding the antenna; the antenna main rod is installed on the antenna support, and a cable-stayed part used for improving strength is arranged between the antenna main rod and the antenna support. The vibrator unfolding and folding mechanism comprises a vibrator diagonal draw bar, a lead screw sliding block assembly and a driving motor; one end of the vibrator diagonal draw bar is connected with the sliding block, and the other end is connected with the vibrator; the sliding block slides on the lead screw; the driving motor drives the lead screw to rotate. According to the technical scheme of the utility model, the receiving efficiency of the antenna can be improved: the antenna can be remotely controlled to be unfolded and folded in an electric mode by increasing the number of the oscillators, so that the antenna can be more efficiently aligned to the optimal signal direction, the radiation gain of the antenna is increased, and the signal receiving efficiency and stability are improved.

The utility model relates to the technical field of broadband antennas, in particular to an adjustable multi-array broadband antenna. The utility model provides an adjustable multi-array broadband antenna which comprises a router, first antennas, second antennas, an interface and the like, the first antennas are rotatably arranged on the left side and the right side of the router, the first antennas are rotatably arranged on the rear side of the router in a bilateral symmetry mode, the second antennas are slidably arranged on the first antennas, the interface is arranged on the front side of the router, and the adjustable multi-array broadband antenna further comprises a stabilizing assembly. And a stabilizing assembly is arranged at the bottom of the router. According to the utility model, the electric suckers are started to be adsorbed on the desktop, the router is fixed, compared with a traditional placement mode, the stability of the router when the router is placed on the desktop is improved, the router is effectively prevented from shifting and even toppling over due to external force collision, touch and the like, and the normal use of the router is guaranteed.