47 results about "Conformal antenna" patented technology

A relay satellite platform communication device for space-ground networking belongs to the field of relay satellites, and is formed by system-level integration of four core technologies including a structure-electrical integrated central bearing frame, an integrated three-surface pluggable modular system, a conformal antenna integrated multifunctional shell and an internal and external cooperative heat pipe heat dissipation network. A framework-module-skin three-layer deep coupling system framework is constructed, six faces of a center bearing structure are divided into a movable area and a static area, the movable area is used for achieving function reconfiguration and on-orbit maintenance, and the static area is used for deploying a high-reliability platform foundation system which is fixed once launched. According to the invention, the problems of difficulty in on-orbit maintenance, low reliability and efficiency bottleneck caused by discrete architecture and functional coupling of a traditional relay satellite are solved, and a high-reliability, high-flexibility and easy-to-maintain satellite platform foundation is provided for constructing a dynamic reconfigurable space-ground integrated information network.

The broadband circular polarization conformal antenna adopts the combination of three layers of dielectric substrates and an air layer, and comprises an upper layer dielectric substrate, a middle layer dielectric substrate, a lower layer dielectric substrate, a central 2 * 2 corner cut square patch, a peripheral 16 corner cut square patch, a square feed patch with a rectangular groove formed along a diagonal line, a metal floor and a feed microstrip line, a metasurface structure is printed on the upper surface of the upper-layer dielectric substrate 1 and comprises a 2 * 2 corner cut square patch array 4 located in the center and 16 corner cut square patches 5 surrounding the center array; a square feed patch and a feed microstrip line are printed on the lower surface of the middle-layer dielectric substrate 2, the square feed patch is located at the dead center of the lower surface of the middle-layer dielectric substrate, and a rectangular groove is formed in the dead center of the square feed patch in the diagonal direction; and a complete metal floor is arranged on the lower surface of the lower dielectric substrate. The antenna has the characteristic of low profile, and the antenna can be conformal to a cylindrical surface carrier platform.

The application relates to a full polarization high-gain wide-band conformal antenna, belongs to the technical field of electromagnetic propagation and energy collection, and particularly relates to a full polarization high-gain wide-band conformal antenna and a small-size rectifier circuit. The application conforms to the inner wall of an energy collection box by using an improved structure simple Yagi antenna, expands the working frequency band range of the antenna, is convenient for integration with equipment, and reduces the size of the energy collection device. The application designs an ultra-wide-band and compact structure quadrature coupler which is integrated at the bottom of the device. The quadrature coupler can realize 3db coupling in a wide frequency band range, evenly divides the energy received by each port into two paths, and solves the problem of low efficiency caused by the imbalance of the rectifier link in the prior art. The rectifier is small in size, has a good joint simulation effect, and is convenient for integration. The antenna can work in different radio frequencies and power ranges.

The application provides a circularly polarized conformal antenna for a curved carrier. 11 The antenna comprises a full-metal floor, a ring-shaped patch, a feed patch and four parasitic patches. The ring-shaped patch resonates in a TM The sequential 90° phase difference provided by the arc-shaped strips can realize circularly polarized radiation. Four parasitic patches surrounding the ring-shaped patch are introduced to excite another circularly polarized resonant mode, thereby widening the bandwidth and improving the gain. In order to verify the conformal performance of the antenna, the performances under different bending radii are compared and discussed. Finally, the final profile of the antenna of the application is 0.054λ0, λ0 is the free space wavelength of the antenna at the center frequency, and the antenna has the characteristics of low profile, wide bandwidth and high gain.

The invention discloses a rail transit 5G Massive MIMO conformal antenna based on a holographic metasurface and a beam regulation and control method of the rail transit 5G Massive MIMO conformal antenna, and belongs to the technical field of wireless communication. The conformal antenna comprises a flexible dielectric substrate, a holographic metasurface unit array, an impedance matching layer, an active feed network and an intelligent control system. The beam regulation and control method comprises a hologram calculation step, a dynamic beam forming step and a multi-mode vortex beam generation step. Conformal deployment of the antenna, the tunnel inner wall, a train body and other complex curved surfaces is achieved through the holographic metasurface technology, the intelligent beam regulation and control algorithm is utilized to adapt to the rail transit fast time-varying channel environment, the problems that a traditional antenna is limited in form and too high in energy consumption are effectively solved, and meanwhile high-capacity, low-power-consumption and high-safety wireless communication is achieved.

This invention provides a conformal antenna array capable of radiating vortex waves and its usage method, comprising a cylindrical conformal support bracket with multiple through holes on its upper surface. An antenna support column is axially movable within each through hole, and the antenna support column is detachably connected to the conformal support bracket via a connector. An antenna element is located at one end of the antenna support column outside the conformal support bracket, and the antenna element is connected to a power divider via a coaxial line. The projection of the multiple antenna elements outside the conformal support bracket onto a horizontal plane is polygonal. Each antenna element includes a first metal sheet, a dielectric substrate, and a second metal sheet stacked from top to bottom. Isolation holes are formed on the second metal sheet and the dielectric substrate, and non-metallic through holes are provided within these isolation holes. A coaxial line passes through the non-metallic through holes and connects to the first metal sheet. Phase modulation is achieved by adjusting the height of the antenna element, providing a simple and effective means for antenna beamforming and vortex mode number variation design, avoiding the complexity and high cost of traditional complex feed networks.

This invention relates to the field of urban rail transit inspection technology, and particularly to a characteristic mode design system for broadband conformal antennas used in inspection. The system includes an inspection condition parameter input module for acquiring the condition parameters of the target inspection section, which at least include the section type, communication link requirements, and target operating frequency band; a multi-rotor UAV body modeling module for establishing a full-size three-dimensional electromagnetic model of the UAV based on its geometry and material properties; and a characteristic mode analysis module, signal-connected to the inspection condition parameter input module, for analyzing the characteristic modes based on the target operating frequency band. This invention deeply integrates inspection condition parameters into the entire process of characteristic mode selection, antenna element design, and beamforming. Based on the communication link requirements of different inspection sections, it selects matching dominant characteristic modes and implements targeted beamforming, ensuring that the antenna radiation characteristics are highly adapted to the complex inspection environment of rail transit and overcoming communication attenuation problems.

This invention provides a conformal antenna for insect-scale small biomimetic aircraft, relating to the field of biomimetic aircraft technology. In this invention, the body structure of the insect-scale small biomimetic aircraft includes legs, a tail, and wings; several conformal antennas are respectively configured around the legs, tail, and wings, operating in different frequency bands and receiving electromagnetic signal excitation from corresponding feed points. The insect biomimetic antenna is both a structural component of the organism and a communication component for electromagnetic transmission, essentially integrating multiple functions into one structure; multi-functional multiplexing is an effective way to achieve miniaturization and lightweighting of insect biomimetic aircraft. The application of the antenna described in this invention significantly improves the level of multi-frequency high-speed data transmission in biomimetic aircraft, while also endowing them with extremely high stealth capabilities.

The invention provides an integrated antenna, and belongs to the technical field of antennas. The integrated antenna is composed of a plastic shell and a conformal antenna, wherein the plastic shell is composed of a parabola-shaped head and a platform-shaped bottom, and the conformal antenna is attached to the plastic shell. The integrated antenna can maintain high-gain directional radiation of the antenna on a curved surface with a sharp angle.

The invention discloses an automatic measuring, assembling and adjusting system and method for a curved surface conformal antenna array connector, and mainly solves the problems of low manual assembling efficiency and poor precision of a curved surface conformal antenna array radio frequency connector in the prior art. Comprising a machine cover, an assembling workbench, an industrial personal computer, a visual sorting feeding mechanism, an assembling mechanism, a tail end quick-changing mechanism and a curved-surface conformal antenna plate, wherein the visual sorting feeding mechanism, the assembling mechanism, the tail end quick-changing mechanism and the curved-surface conformal antenna plate are installed on the workbench; the feeding mechanism is provided with a main robot sorting feeding area and an auxiliary robot sorting feeding area which are provided with industrial vision cameras and material boxes correspondingly and used for recognizing and grabbing TR assemblies and connectors. The assembling mechanism comprises a six-axis main robot, a six-axis auxiliary robot, a 2D visual camera, a positioning tool, a curved surface conformal supporting tool and a six-degree-of-freedom platform used for pose adjustment. And the tail end quick-change mechanism supports various tail end actuators. The full-process automatic closed-loop control is realized, the assembly precision, consistency and efficiency can be remarkably improved, and the method is particularly suitable for assembly, electric measurement and debugging of the large-curvature curved surface conformal antenna.

The invention relates to a preparation method of a low-RCS conformal antenna, and belongs to the field of antennas. According to the method, the conductive polymer PEDOT: PSS treated by ethylene glycol is spin-coated on the surface of the LIG, so that the conductivity of the LIG is further improved, and efficient and environment-friendly preparation of the antenna function is realized. Compared with the defect of poor conformality of a traditional metal-based rigid antenna and the defect that part of metal film flexible antennas are easy to strip due to weak interface bonding, the interface bonding strength of the LIG and the base material is extremely high, the dynamic deformation requirement can be stably met, the manufacturing process is relatively simple, and the cost is low. And the comprehensive performance of the antenna in the aspect of electromagnetic wave absorption can be improved in combination with a metasurface wave absorber, and a new solution is provided for high-frequency-band communication and the like.

The invention relates to a fuzzy optimization partition positioning method and system based on a different-plane conformal antenna, and the method comprises the steps: initializing system configuration, and setting system working parameters; bluetooth data are collected, data preprocessing and data fusion are carried out, and fused data are obtained; performing positioning calculation according to the fused data to obtain an angle of arrival; calculating a fuzzy coefficient and a comprehensive guide vector according to the angle of arrival; calculating a correction angle according to the comprehensive guide vector; judging whether the correction angle meets the positioning accuracy requirement or not, and if the correction angle meets the positioning accuracy requirement, returning to the step 1 to execute the processing of the next packet of Bluetooth data; if the positioning precision requirement is not met, optimizing an antenna sampling strategy, and dynamically adjusting an antenna sampling parameter according to the current environment condition; and feeding back the optimized antenna sampling strategy to a sampling device. Compared with the prior art, the method has the advantages of high positioning accuracy and good flexibility.

A conformal antenna system for Synthetic Aperture Radar (SAR) applications, the system comprising a tubular POD, a curved vertically polarized radio frequency (RF) antenna conformally integrated into a curved surface of the tubular POD at a first location, and a curved horizontally polarized RF antenna conformally integrated into the curved surface of the tubular POD at a second location, wherein the first location and the second location are arranged such that the curved vertically polarized RF antenna and the curved horizontally polarized RF antenna share a common RF emission axis.

The invention discloses a conformal antenna system for a double-lens capsule type endoscope and the double-lens capsule type endoscope comprising the conformal antenna system. The conformal antenna system for the double-lens capsule type endoscope comprises two lenses arranged at the two ends in a shell and lens supports corresponding to the two lenses respectively, and further comprises a conductive radiator, and the lens supports are made of non-metal materials. And the conductive radiator is integrated on the surface or inside the lens bracket of one or two lenses and forms a conformal structure with the lens bracket. According to the invention, the antenna and the lens bracket are designed in an integrated and conformal manner, so that the problem that the installation space of the capsule type endoscope is deficient is fundamentally solved, and metal interference in the capsule type endoscope is effectively isolated, thereby realizing high radiation efficiency and stable remote wireless communication.

The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a light conformal antenna unmanned aerial vehicle wing and a preparation method thereof. The antenna is arranged on the surface of the foaming core, or the antenna is wrapped in the foaming core to form a conformal antenna; the prepreg is overlapped and coated on the surface of the conformal antenna to form the unmanned aerial vehicle wing; the prepreg is an epoxy glass fiber prepreg, and oligomeric polyphenyl ether and polystyrene are added into the prepreg; the foaming core is formed by a PPO / PS material through supercritical foaming; the antenna is made of a PPO / PS material of thermoplastic resin. Compared with the prior art, the problems that in the prior art, a conformal antenna in an unmanned aerial vehicle wing is limited by signal interference, and the material is high in dielectric and high in loss are solved. According to the scheme, wing weight reduction and antenna conformal design of the unmanned aerial vehicle are achieved, and finally light weight and high gain are achieved.

The invention discloses a low-profile high-load micro-strip conformal antenna and a preparation method, and relates to the technical field of communication antennae, and the low-profile high-load micro-strip conformal antenna comprises a conformal antenna housing, a micro-strip antenna, a conformal substrate, a feed connector, a conformal micro-strip radiation patch and a metal lining. The microstrip antenna is provided with a conformal microstrip radiation patch and is provided with a T-shaped slot; the edge of the conformal radome is provided with a mounting part, the mounting part is provided with a mounting countersunk screw hole, and the metal lining is embedded in the countersunk screw hole; the micro-strip antenna is fixedly connected with the conformal substrate, the conformal antenna housing wraps the micro-strip antenna and the conformal substrate, and gaps among the conformal antenna housing, the conformal substrate and the aircraft mounting plate are filled with adhesive glue. By arranging the conformal microstrip radiation patch on the microstrip antenna and forming the T-shaped slot, the surface current path is prolonged, the miniaturization of the radiation patch is realized on the premise of not reducing the resonant frequency, and the problems that the traditional microstrip antenna is large in size and difficult to integrate are solved.

The application discloses a relay satellite platform communication device for networking between space and ground, belongs to the field of relay satellites, and is characterized in that the device is constructed by system-level integration of four core technologies, including a structure-electricity integrated central bearing frame, a plug-in modular system of 'one body and three surfaces', a conformal antenna integrated multifunctional shell and an internal-external collaborative heat pipe heat dissipation network, and a three-layer deep coupling architecture of'skeleton-module-skin' is constructed, six surfaces of the central bearing structure are divided into two areas of dynamic and static, which are a modularized enclosure area and a fixed function area respectively, the dynamic area is used for realizing function reconfiguration and on-orbit maintenance, and the static area is used for deploying a high-reliability platform basic system which is fixed and unchanged once launched. The application solves the problems of on-orbit maintenance difficulty, low reliability and performance bottleneck caused by the architecture dispersion and function coupling of traditional relay satellites, and provides a satellite platform foundation with high reliability, high flexibility and easy maintenance for constructing a dynamic reconfigurable space-ground integrated information network.

The invention discloses a conformal antenna applied to a high-temperature environment, and belongs to the technical field of antennas. The antenna comprises a high-temperature-resistant cable assembly, a circular ring structure, a resonance piece, a supporting block, a ceramic cover plate and a heat insulation coating, the high-temperature-resistant cable assembly is directly fixed to a cavity structure through threads on a connector of the high-temperature-resistant cable assembly, and a core on the connector is welded to the resonance piece. The fixing device is fixed to the tail of the aircraft through screw holes in the outer diameter. The heat insulation coating can insulate heat generated by the exhaust nozzle to a certain degree, and the heat is prevented from being directly transmitted to the cavity structure. The invention provides a high-temperature-resistant conformal antenna applicable to high-speed aircrafts.

The invention discloses an APT identification system based on conformal antenna array and multi-modal behavior fusion, and aims to solve the problems of insufficient feature fusion of a physical layer and a network layer, fixed response strategy and the like in existing APT identification. The system comprises a conformal antenna array, a radio frequency sensing unit, a network behavior sensing unit, a multi-modal fusion decision engine, a root of trust module and a response controller, a radio frequency signal is captured and regulated through the conformal antenna array, and the radio frequency sensing unit and the network behavior sensing unit extract physical layer and network layer features; transform and GAT fusion features are adopted by the multi-modal fusion decision engine, APT classification, recognition and traceability are executed through multiple tasks, the integrity of a link is guaranteed through a trust root module, and a grading strategy is executed by a response controller according to threat scores. According to the method, the cooperation of feature fusion and decision of the physical layer and the network layer is realized, the APT identification accuracy and response speed are improved, and the communication security can be effectively guaranteed.

The invention discloses a signal security and APT protection system based on multi-mode fusion and power regulation and control, and belongs to the technical field of wireless communication and network security fusion. The system aims at solving the problems that a traditional conformal antenna is rigid in power regulation and control and poor in environmental adaptability, APT attacks extend to a radio frequency layer, and existing protection lacks multi-layer deep linkage, and comprises six core modules, and multi-modal features are extracted through radio frequency sensing, network behavior monitoring and environment sensing modules; a graph neural network and Transformer / reinforcement learning fused AI decision engine carries out unified modeling, outputs a power distribution matrix and a safety response strategy, drives a conformal array antenna to dynamically adjust the phase and the power, executes protection operations such as dynamic beam interference and adaptive power adjustment, adapts to multiple scenes such as vehicle-mounted scenes, unmanned aerial vehicles and smart homes, and improves the safety and reliability of the conformal array antenna. And the safety, the environmental adaptability and the power utilization efficiency of wireless communication are greatly improved.

The invention provides a flexible wearable instant detection device. The flexible wearable instant detection equipment comprises a flexible circuit structure and an anti-interference antenna assembly, the flexible circuit structure comprises a flexible circuit layer and a thin film electrode type sensor, and the sensor is printed on the flexible circuit layer; the anti-interference antenna assembly comprises a multi-band conformal antenna and a frequency selection surface layer, the multi-band conformal antenna is embedded in the equipment middle frame, and the frequency selection surface layer is arranged on the equipment back shell. According to the device, high-comfort wearing is achieved through the flexible printed circuit and the conformal antenna technology, the multi-band anti-interference design and the self-checking circuit module are combined, and the signal stability and the device reliability are improved.

This invention discloses a biomimetic forehead conformal antenna and its application in robot broadband communication, belonging to the field of robot communication antenna technology. The antenna is an arc-shaped conformal rigid structure mimicking the human forehead, consisting of a radiating layer, an impedance-gradient dielectric layer, and a metal grounding support layer from top to bottom. The radiating layer integrates multi-band radio frequency communication radiating units; the impedance-gradient dielectric layer adopts a fully passive gradient structure, achieving a voltage standing wave ratio (VSWR) ≤1.6 within the 2.4GHz to 6GHz frequency band; the antenna is fixedly integrated with the robot head through the metal grounding support layer. This invention eliminates the need for active tuning circuitry, features low bulge, low wind resistance, high isolation, and high gain, and supports concurrent communication across all frequency bands including WiFi, 5G Sub-6G, UWB, and Bluetooth.

This invention discloses a sequentially rotating broadband high-gain circularly polarized antenna, a conformal antenna, and their design methods. The antenna comprises two stacked dielectric substrates, with a radiating structure disposed on the upper surface of the upper substrate. The radiating structure includes a circularly polarized core unit and parasitic patches arranged around it. Connecting patches within the core unit introduce a 90° phase difference between two adjacent sides of the closed-loop patch, exciting circularly polarized radiation and establishing a sequentially rotating phase difference coupling field on the periphery. The parasitic patches obtain coupled feeding through the coupling field to broaden the bandwidth and improve gain. Coupling patches are arranged oppositely between the upper and lower substrates to improve impedance matching. When using a flexible substrate, the antenna maintains broadband circular polarization characteristics and a stable radiation pattern even when bent. This invention achieves an impedance bandwidth of 5.1–7.29 GHz, an axial ratio bandwidth of 5.28–6.77 GHz, a peak gain of 12.14 dB, and cross-polarization below -15 dB, making it suitable for 5G / 6G communication and satellite communication systems.

The utility model relates to radar technical field, proposes a kind of passive radar conformal antenna array, comprising: outer panel, the one side of outer panel is fixedly installed with foam layer, the one side of foam layer is fixedly installed with function layer, the one side of function layer is fixed with bottom panel, the inside of foam layer, function layer is provided with helical antenna, the one side of helical antenna is fixedly installed with antenna receiving surface, the outside of helical antenna is fixedly installed with signal amplifier, the one side of antenna receiving surface is fixedly installed with heat dissipation shell, the inside of heat dissipation shell is fixedly installed with TR component. The shape of outer panel, foam layer, function layer and bottom panel is all set as arc panel, which can facilitate the installation of passive radar conformal antenna array on aircraft, thereby ensuring the aerodynamic performance of aircraft. The conformal antenna is designed integrally with the carrier surface, which can effectively reduce the radar reflection area RCS, thereby improving the stealth performance.

The invention discloses an unmanned aerial vehicle conformal antenna foam sandwich vertical fin, and belongs to the field of unmanned aerial vehicle vertical fins. The unmanned aerial vehicle conformal antenna foam sandwich vertical fin comprises a vertical fin structure assembly and an antenna assembly, a multi-layer composite structure vertical fin is designed, a power amplifier and a cable of the antenna are arranged in the vertical fin, the antenna and the vertical fin are conformal and installed in an embedded mode, and conformal of the antenna assembly and the vertical fin structure is achieved. The aerodynamic performance, the structural strength, the light weight and the electromagnetic performance of the antenna vertical fin are guaranteed, the heat dissipation problem of the power amplifier is solved, and maintenance is convenient.

The application provides a directional diagram reconfigurable conformal antenna suitable for a two-section flapping-wing aircraft and a field target searching method based on the flapping-wing structure conformal antenna, which comprises a flapping-wing fixed frame, a skin and a printed antenna, the flapping-wing fixed frame comprises an inner frame, an outer frame and a driving rocker, and the printed antenna is arranged on the inner and outer surfaces of the skin. The antenna oscillator, the parasitic patch, the reverser and the director located on the two-section flapping wing are composed, and because the conformal antenna is conformal to the flapping-wing skin, the electromagnetic wave radiation is not interfered by the internal structure. Through simulation verification, the return loss of the conformal antenna at 2.44GHz is‑35dB, and the gain is 7.05dBi. Because the beam angle of the conformal antenna is small, and the flapping-wing flapping when the bionic bird flies, the beam can be scanned in a certain area, and according to the attitude control adjustment of the aircraft, the searching work in the complex mountainous terrain in the field can be realized.

This invention relates to a method for transferring curved conformal antennas / circuits and to a curved conformal antenna / circuit. The method involves approximating a non-stretchable surface using facets, with all facets forming a polyhedron of a stretchable surface. The gaps between the polyhedron and the non-stretchable surface constitute a surface profile. A curved micro / nano structure is obtained on a planar substrate through photolithography. This curved micro / nano structure is then transferred to a flexible substrate to fabricate a flexible curved micro / nano structure. A target antenna / circuit is fabricated on the flexible curved micro / nano structure to obtain a flexible curved antenna / circuit, which is then mass-produced. The flexible curved micro / nano structure with the target antenna / circuit is conformally bonded to the non-stretchable surface, and the target antenna / circuit is transferred to the non-stretchable surface. The flexible substrate is then removed, and the flexible curved antenna / circuit is transferred in parallel. This invention yields products with large surface area and high dimensional and positional accuracy, improving product yield, reducing costs, and enabling parallel transfer of curved conformal antennas / circuits.

The invention discloses an optimization design method of a skin conformal antenna under fatigue reliability constraint. The method comprises the following steps: firstly, analyzing a skin conformal antenna structure and a service load thereof, identifying a main failure mode of the skin conformal antenna structure, representing and quantifying multi-source uncertainty such as a service environment, a composite material layering structure and material performance, establishing a performance simulation analysis model under multi-physics field coupling, and simulating performance response of the model under the action of multi-physics field coupling; the method comprises the following steps: firstly, simulating a skin conformal antenna, then, constructing a performance prediction model based on deep learning on the basis of a simulation result, then, establishing a skin conformal antenna integrated optimization design model under fatigue reliability constraint, finally, solving an optimal design variable by utilizing an intelligent optimization algorithm, and carrying out multi-physics field performance analysis on an optimized structure to verify an optimization effect. According to the method, key technical support is provided for aircraft design optimization and collaborative design of an electromagnetic and structural system, and reliable operation and high performance of the aircraft under complex working conditions can be ensured.