42 results about "Helical antenna" patented technology

The invention provides an AI-driven multi-wireless-signal candid photographing detection device which comprises a mounting shell, a hardware acquisition layer, an edge computing layer, a cloud federation layer and a man-machine interaction layer, and all the layers achieve signal interaction through PCIe4.0 and SPI hardware interface communication protocols. The broadband patch antenna, the ceramic antenna and the helical antenna are adopted to cover a full target frequency band, the millimeter wave radar chip is matched, the 16 * 16 metamaterial RIS panel is additionally configured, and the weak signal receiving power is improved by synchronously controlling a reflection phase focusing signal, so that the problem of missing detection is solved; the multi-signal tensor decomposition unit and the CNN-LSTM signal classification unit construct frequency, intensity, time and phase four-order tensors, and overlapped signals are separated through Khatri-Rao space-time coding; a three-layer CNN and a two-layer LSTM are combined, precise classification of candid photographing signals is realized, the misjudgment rate is reduced, millimeter wave assisted precise distance measurement is combined with millimeter wave flight time data and an RSSI attenuation model, a distance measurement error is controlled through a dynamic weighting algorithm, and the problem of positioning misalignment is solved.

This invention provides a method for simulating and analyzing antenna power deposition efficiency and magnetic field, relating to the field of plasma engineering technology. The method includes: constructing a simulation model based on a helical antenna and plasma; constructing control equations for the simulation model; obtaining configuration information of the helical antenna and calculating corresponding physical field components based on the configuration information; the physical field includes wave magnetic field, wave electric field, and current density field; calculating physical field information at different locations based on the physical field components using the control equations; identifying the magnetic field information to generate helical wave components and TG wave components; analyzing the physical field information to obtain the influence law of performance indicators; and filtering the configuration information of the helical antenna based on the influence law of performance indicators to obtain a design scheme for the helical antenna as a plasma source, which can provide an effective ICP source design scheme.

An antenna apparatus and method of operating the antenna apparatus, can include a helical antenna comprising a helical portion raised from a printed circuit board to optimize gain and bandwidth, wherein the helical portion incorporates a limited number of turns, which facilitate control over the dimensions of the helical antenna. An antenna support can be provided, which can maintain dimensional consistency with respect to the helical antenna. The antenna support can facilitate achievement of target performance parameters for the antenna apparatus. In addition, the elevated helical portion can be configured to enhance the gain and the bandwidth without compromising the overall dimensions of the helical antenna. In some embodiments, the helical antenna may be formed from plastic.

Transmitters, receivers, transceivers, transport networks, and methods of use are described herein, including a transmitter comprising a client-side input, transmitter circuitry, and antennas. The client-side input receives baseband signals having client data encoded therein. The transmitter circuitry receives the baseband signals from the client-side input and generates antenna feed signals based on the baseband signals. The antennas receive the antenna feed signals from the transmitter circuitry, generate radiated signals based on the antenna feed signals, and couple the radiated signals into hollow waveguides. The radiated signals are radiated electromagnetic waves configured for coherent detection and having one or more frequencies in a range between 300 Gigahertz (GHz) and 10 Terahertz (THz). The antennas include one of a helical antenna, a waveguide probe antenna, a tapered antenna, a patch antenna, and a slot antenna.

The invention provides a deep sea pressure-resistant antenna which comprises a hollow base composed of a conical part and a columnar part, a feed network plate arranged at the large head end of the conical part, an antenna assembly connected to the feed network plate and a radio frequency cable with one end connected with the feed network plate and the other end led out outwards. The large-head end of the conical part is provided with an inverted-L-shaped back-off ring which shrinks inwards, an epoxy resin rubber column is buckled on the back-off ring, the antenna assembly and the feed network board are wrapped by the epoxy resin rubber column, and the epoxy resin rubber column is filled into an inner cavity of the hollow base, so that the epoxy resin rubber column is coaxial with the large-head end of the conical part. The diameter of the epoxy resin rubber column is equal to the diameter of the large head end of the conical part, the pressure resistance of the antenna can be improved, the antenna can work for a long time at the depth of 3000 meters underwater, signal receiving and transmitting of an iridium frequency band and a GNSS frequency band can be achieved through the four-arm spiral antenna, and the manufacturing method of the deep sea pressure-resistant antenna is easy to operate and implement.

To provide a system and method that allows more antennas to be present on a spacecraft while minimizing the platform volume used for antennas. [Solution] The multiband concentric helical antenna system 100 includes bases 115, 125, a first helical antenna 110, and at least a second helical antenna 120, wherein the second helical antenna is located within the first helical antenna, the first helical antenna has a first frequency band, and the second helical antenna has a second frequency band that is not the same as the first frequency band, and the first and second helical antennas are connected to the base and located within an opening in the base. The multiband helical antenna system may further include N additional antennas, which can be used as a single radiating element or in an array of radiating elements.

The utility model relates to the technical field of antennas, and discloses a simple dual-frequency antenna, which comprises an antenna reflector, four feed probes are fixedly arranged at the center of the upper end surface of the antenna reflector, antenna radiators are arranged at the upper ends of the outer walls of the four feed probes, each antenna radiator comprises a four-arm helical antenna, and the four-arm helical antennas are arranged in parallel. A feed network is arranged in the antenna reflector, and antenna frequency modulation branches are fixedly arranged at the front end and the rear end of the two sides of the upper end face of the antenna reflector. According to the utility model, the overall structure is simple and novel, and the antenna has the characteristics of miniaturization and wide frequency band without reducing the antenna performance.

The embodiment of the utility model discloses an integrated broadband detecting and receiving direction finding array, and belongs to the technical field of radio direction finding. The direction finding array comprises a shell composed of a first bottom plate and an antenna cover covering the first bottom plate, and a plurality of planar helical antennas are installed on the first bottom plate. The plurality of planar helical antennas comprise a plurality of low-frequency antennas and a plurality of high-frequency antennas, the second bottom plate is arranged on the first bottom plate, the plurality of low-frequency antennas are mounted on the first bottom plate, and the plurality of high-frequency antennas are mounted on the second bottom plate; and the antenna pedestal is arranged in the shell, is arranged on the first bottom plate and is provided with prefabricated holes corresponding to the planar helical antennas, so that the planar helical antennas are accommodated in the corresponding prefabricated holes. The direction finding array is simple in overall structure, can be rapidly installed and used, and can be suitable for wide-frequency-band detection and receiving direction finding equipment in a complex electromagnetic environment.

The application discloses a kind of inductively coupled plasma micro-propeller of double antenna structure, and its discharge system includes gas source, air inlet valve, antenna, discharge tube and radio frequency power supply.Gas source is directly connected with discharge tube by valve, wherein the valve can control the air intake during discharge;Then two identical helical antennas are connected in series at a certain distance and are wound on the same discharge tube, the output end of radio frequency power supply is connected to the end of antenna away from air inlet through impedance matcher, and the other end of radio frequency power supply and antenna is connected to the same ground.The application has simple structure, small space size and mass, and only needs to work stably at low power and low air intake, realizing micro-newton to millinewton level thrust.It is suitable for equipping in most of the current constellation micro-satellites without propulsion system of nanosatellite and cubic satellite.In addition, the length and spacing of the two antennas in the system are adjustable, and the size of the propeller can be adjusted according to the specific requirements of micro-satellite.

The present disclosure provides a helical antenna. The helical antenna includes a feeder board and four radiation components. The four radiation components are electrically coupled with the feeder board, respectively. A dielectric space is formed among the feeder board and the four radiation components. The four radiation components are circularly arranged at intervals, and any cross-section of the four radiation components parallel to a top surface of the feeder board is circular. Each of the four radiation components includes a feeding unit and a radiation portion. The feeding unit is electrically coupled between the radiation portion and the feeder board. The radiation portion is configured to transmit and receive a wireless signal in a first frequency band. An end of the radiation portion is in connection with the short circuit portion, and the other end of the radiation portion is in connection with the feeding portion.

This invention belongs to the field of metal additive manufacturing technology, specifically relating to an integrated, high-performance direct forming method for helical antenna metal support structures in communication and navigation equipment. Starting with the pretreatment of the substrate and powder, this invention utilizes a system based on Q-switching of a quasi-continuous-wave laser to achieve pulsed / continuous laser switching, combining continuous laser main forming with pulsed laser auxiliary control. Through precise timing and energy coordination, the process simultaneously optimizes microstructure, controls defects, and optimizes stress during forming, ultimately directly obtaining a high-quality helical antenna support without relying on post-heat treatment to adjust performance. This invention features a simple and controllable process, yields products with excellent performance, and is suitable for industrial application.

The invention provides a helical antenna device and a signal tracking method thereof, and the helical antenna device comprises a pedestal; the supporting rod is arranged on the base in a rotatable manner; the helical antenna is wound on the supporting rod, one end of the helical antenna is connected with the supporting rod, and the other end of the helical antenna is connected with the base; the spiral coil number and the spiral diameter of the spiral antenna can be changed along with rotation of the supporting rod. The device can change the spiral coil number and the spiral diameter of the spiral antenna by rotating the supporting rod so as to change the directional diagram of the spiral antenna, and is used for tracking the transit pitch angle of the aircraft, so that the maximum gain radiation direction of the spiral antenna can always point to the transit pitch angle of the aircraft; and the communication link quality between the helical antenna and the aircraft is ensured.

The utility model relates to a universal rod-shaped antenna, which comprises a mounting seat, a movable seat horizontally and rotatably arranged at the upper end of the mounting seat, a telescopic rod-shaped antenna longitudinally hinged at the upper end of the movable seat, and a spiral antenna arranged at the tail end of the telescopic rod-shaped antenna, a protective outer cover is arranged at the tail end of the telescopic rod-shaped antenna, and the helical antenna is arranged in the protective outer cover; a first wiring channel is axially arranged in the telescopic rod-shaped antenna, a second wiring channel is longitudinally arranged on the movable seat corresponding to the first wiring channel in a penetrating manner, a longitudinal third wiring channel is arranged on the mounting seat corresponding to the second wiring channel, and a wiring groove communicated with the lower end of the third wiring channel is formed in the outer side wall of the lower end of the mounting seat; the device is small and exquisite in overall structure, capable of extending or shortening, adjustable in orientation, high in adaptability and stable in signal.

The invention discloses an ultrahigh-frequency partial discharge acquisition device and a cooperative processing method using the same, and relates to the technical field of power system high-voltage equipment detection, and the ultrahigh-frequency partial discharge acquisition device comprises a signal receiving unit, a high-speed sampling unit, a heterogeneous parallel processing unit, a multi-mode data transmission unit and an isolated power supply unit. The signal receiving unit is connected with the high-speed sampling unit through a standardized high-speed interface, the high-speed sampling unit is connected with the heterogeneous parallel processing unit through a standardized high-speed interface, and the heterogeneous parallel processing unit is electrically connected with the multimode data transmission unit and the isolated power supply unit respectively; the signal receiving unit comprises an ultra-wideband planar helical antenna, a three-stage low-noise amplification circuit, a Butterworth band-pass filter and a single-end differential conversion module. The invention provides a special signal acquisition channel with high fidelity, low noise and wide dynamic range so as to stably capture and completely restore transient characteristics of weak ultrahigh frequency partial discharge pulses in a complex electromagnetic environment.

The utility model provides a helical antenna convenient to maintain, which relates to the technical field of antennas and comprises an antenna mechanism, a protection mechanism is arranged on the outer side of the antenna mechanism, a mounting mechanism is arranged in the middle of the antenna mechanism, the antenna mechanism comprises a mounting seat, and a mounting frame is arranged at the top of the mounting seat. According to the utility model, the limiting fasteners symmetrically distributed on the connecting seat can be respectively buckled in the buckling notches formed in the long sheath and the short sheath, and the fastening ring is clamped between the narrow convex block and the limiting convex block by shifting the fastening ring towards the outer side, so that the pressing block at one end of the pressing piece is driven to press the limiting fasteners; the quick mounting and fastening function can be achieved, meanwhile, the fastening ring can be conveniently stirred towards the middle in the later maintenance process, the pressing piece is made to release the pressing state, then the quick dismounting function can be achieved, and the maintenance convenience is improved.

Techniques pertaining to designs of a helical antenna as a coupler for dielectric waveguides for high data rate communications are described. A coupler to a waveguide cable is configured to allow the waveguide cable to connect to an integrated circuit (IC) chip in a direction normal to the IC chip. The coupler includes a helical antenna which includes a core, a helical structure in the core, and a cladding surrounding the core.

The utility model relates to a double-frequency four-arm helical antenna, which comprises a PCB base plate and an antenna assembly, the antenna assembly comprises a first antenna unit, a second antenna unit, a third antenna unit and a fourth antenna unit, the first antenna unit, the second antenna unit, the third antenna unit and the fourth antenna unit are distributed on the PCB base plate in an annular array mode, and the first antenna unit, the second antenna unit, the third antenna unit and the fourth antenna unit comprise a first radiation oscillator, a second radiation oscillator and a metal short circuit part. The first radiation oscillator is configured to excite a first resonant frequency, the second radiation oscillator is configured to excite a second resonant frequency, the first radiation oscillator is connected with the PCB bottom plate to form a feed point, the second radiation oscillator is connected with the PCB bottom plate to form a grounding point, and the first radiation oscillator and the second radiation oscillator are connected into a whole through the metal short circuit part. The antenna provided by the utility model has the characteristics of low height, small size, light weight, low cost and excellent performance, is wide in bandwidth, and can meet the requirement of supporting GNSS multi-mode multi-frequency high-precision positioning.

The utility model discloses an unmanned aerial vehicle high-precision positioning module based on a printed quadrifilar helix antenna, relates to the technical field of satellite navigation and unmanned aerial vehicle positioning, and aims to provide an unmanned aerial vehicle positioning module with high positioning precision. According to the module, the multi-frequency four-arm helical antenna, the multi-stage radio frequency signal processing circuit and the redundant power supply system are integrated, so that the positioning precision and the anti-interference capability are remarkably improved. The antenna specifically comprises a double-frequency four-arm helical antenna adopting a gold-plated copper radiator, and a broadband impedance matching network constructed by combining a hybrid coupler; the low-noise signal processing link consists of an amplifier, a two-stage filter and a post-stage amplifier; the method is based on a high-precision satellite positioning calculation unit. The module realizes rapid integration through a multi-pin plug-in, has centimeter-level positioning precision, multipath interference resistance and power-off emergency cruising ability, and is suitable for accurate navigation and position return of an unmanned aerial vehicle in a complex electromagnetic environment.

The utility model discloses an electronic unmanned aerial vehicle for investigating and interfering an unmanned aerial vehicle, and belongs to the field of unmanned aerial vehicle signal processing, the electronic unmanned aerial vehicle comprises a coaxial dual-rotor unmanned aerial vehicle body and an electronic pod system, and the electronic pod system is installed below the coaxial dual-rotor unmanned aerial vehicle body; the electronic pod system comprises a planar helical antenna module, a radio frequency power amplification module, a low noise amplification module, a signal processing module and a power supply module. According to the electronic unmanned aerial vehicle for investigation and interference of the unmanned aerial vehicle and the interference method thereof, accurate interception and feature recognition of 800 MHz-6 GHz full-band unmanned aerial vehicle signals are achieved through the arranged planar spiral antenna module, meanwhile, the self-adaptive pre-distortion technology of the radio frequency power amplification module and the intelligent beam forming antenna array are utilized, and the interference of the unmanned aerial vehicle is achieved. Directional interference signals with the same frequency point and the same bandwidth are generated, an enemy unmanned aerial vehicle control link is accurately suppressed, and the method has good use value and application prospects.

This invention relates to the field of thin-walled helical antenna technology, specifically to a high-precision small thin-walled helical antenna made of copper alloy and its application. The copper alloy thin-walled helical antenna is made of CuCrZr alloy and is fabricated by 3D printing. The raw material used in 3D printing is micro-oxidized CuCrZr alloy powder, which contains 0.5%~1.5% Cr, 0.05%~0.25% Zr, 0.02%~0.12% O by mass percentage, with the remainder being Cu. This invention achieves integrated fabrication of small, high-precision, thin-walled, complex structure antennas with high strength and excellent electrical and thermal conductivity. It solves the problem of difficulty in manufacturing thin-walled helical structures using traditional machining methods, as well as the challenges of low surface precision and poor metallurgical quality in copper alloy laser printing. The process is simple, low-cost, and produces high-quality prints, making it widely applicable to the production and manufacturing of copper alloys and high-precision thin-walled components.

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 a reconfigurable intelligent lattice structure based on nested origami and a spiral antenna system, and belongs to the field of reconfigurable multifunctional metamaterial design, the reconfigurable intelligent lattice structure comprises an inner quadrangular prism structure and an outer quadrangular prism structure which are coaxially nested, the inner wall of the outer quadrangular prism structure is provided with a spiral guide groove, and the inner wall of the outer quadrangular prism structure is provided with a spiral guide groove. A guide bulge in sliding fit with the inner layer structure is arranged on the outer surface of the inner layer structure; one layer is fixed and the other layer is rotated by a specific angle, or the two layers are rotated in opposite directions, so that the whole structure can be driven to be completely reconstructed between an expansion state and a compression nesting state; the spiral antenna system comprises a reconfigurable intelligent lattice structure and a spiral patch antenna integrated on the outer surface of an inner layer structure in a conformal mode, and when the inner layer and the outer layer generate relative motion, the antenna can be driven to deform, so that the electromagnetic performance of the antenna is dynamically regulated and controlled. Through a multi-field coupling mechanism, integrated intelligent regulation and control of a mechanical structure, electromagnetic performance and aerodynamic configuration are achieved, and the problems that a traditional structure is fixed in function and difficult to reconstruct are solved.

The application discloses a terahertz detector and an integrated preparation method thereof. The terahertz detector comprises a planar circularly polarized helical antenna integrated with a field effect transistor device, the planar circularly polarized helical antenna is used for simultaneously receiving two mutually orthogonal electric field components and forming a rotating electric field with a phase difference of 90 DEG; the planar circularly polarized helical antenna has a first feeding end and a second feeding end, the first feeding end is electrically connected with one electrode of the field effect transistor device, and the second feeding end is electrically connected with another electrode of the field effect transistor device, so as to couple the received terahertz signal to a two-dimensional electron gas channel. The planar circularly polarized helical antenna is adopted, different polarized direction terahertz electromagnetic waves are effectively received, the adaptability of the detector to the polarization state change of the terahertz wave is improved, and the response stability and receiving efficiency of the detector in the actual application scene are improved; the helical antenna is integrated with the field effect transistor device, and the terahertz signal coupling efficiency is improved.

The invention relates to the technical field of helical antennas, and discloses a conical helical antenna, which comprises a supporting cone structure, a continuous helical radiator and a feed body, the continuous spiral radiator is wound on the surface of the supporting cone structure, is positioned through the positioning structure and is fixed through the connecting structure; the feed body is arranged in the supporting cone structure, a feed part of the feed body penetrates through the end face of the first end of the supporting cone structure, and the feed part is integrated with a butterfly-shaped loading structure; the continuous spiral radiator arranged in a winding manner is provided with a protruding exposed copper sheet extending towards the first end of the supporting cone structure, and the protruding exposed copper sheet is folded to the butterfly-shaped loading structure and is connected with the butterfly-shaped loading structure in a welding manner; and the feed body adopts an exponential transformation balun. Through the structure that a supporting body is precisely matched with a flexible radiating body and an index gradient balun integrated with butterfly loading for integrated feeding, the technical problems of complex process, high manufacturing cost, poor stability and the like are solved by utilizing the synergistic effect of structural modularization and feed path optimization.

The invention relates to an antenna polarization reconstruction method and device, a terminal, a base station and a readable storage medium, relates to the technical field of antenna design, and can solve the problem of coexistence of Band13 and GNSS scenes. The method comprises the following steps: determining operation states of a global satellite navigation system module and a target communication frequency band module; a polarized reconfigurable antenna in the global satellite navigation system module comprises two spiral antennas which are arranged in parallel; the polarization reconfigurable antenna realizes polarization reconfiguration by adjusting the polarization mode of the two spiral antennas; in response to the situation that the global satellite navigation system module and the target communication frequency band module are both in the working state, determining rotation directions in the two helical antennas; according to the rotation directions of the two helical antennas and the polarization mode of the antenna in the target communication frequency band module, adjusting the polarization mode of the two helical antennas to be a target polarization mode; the target polarization mode is different from the polarization mode of the antenna in the target communication frequency band module.

A dielectric waveguide antenna and manufacturing method, as well as a quasi-helical antenna device. The electrically conducting features within the dielectric waveguide antenna are manufactured using standard printed circuit board (PCB) manufacturing technology. Internal elements of the PCB antenna construction may be capacitively coupled or galvanically coupled. The final outer form of the dielectric waveguide antenna is machined by turning on a lathe, and the final outer form is accurately aligned and registered to the electrically conducting features within. The quasi-helical antenna device comprises a repeating, periodic, chain of substantially straight conductive segments that are wound about a central axis. The quasi-helical antenna is fabricated within a planar printed circuit.

A tire pressure sensor includes: a printed circuit board, a battery and a helical antenna assembly, processed through an injection molding process to produce a sensor assembly. The helical antenna assembly includes an antenna support and a helical antenna on an outer sidewall of the antenna support. The antenna support is internally hollow, and a helical groove is on the outer sidewall of the antenna support. The helical antenna is wound in the helical groove. A plurality of fasteners for fixing the circuit board is at a bottom of the antenna support. A pressure sensing component and an antenna matching circuit are printed on a printed circuit board. The antenna matching circuit is configured to transmit a radio frequency signal which is output by the pressure sensing component and obtained by the pressure sensing component modulating a sensed tire pressure signal to an input end of the helical antenna.

The utility model discloses an area array detection system based on a through-the-wall radar, which comprises a radar master controller and an antenna area array, the antenna area array comprises four transmitting antennas and six receiving antennas, the four transmitting antennas and the six receiving antennas are respectively and electrically connected with the radar master controller, the four transmitting antennas are respectively positioned at four vertexes of a rectangular surface, and the six receiving antennas are respectively positioned at the four vertexes of the rectangular surface. Two long edges of the rectangular surface are respectively provided with two receiving antennas, two short edges of the rectangular surface are respectively provided with one receiving antenna, and the distance between the transmitting antenna and the adjacent receiving antenna is equal to the distance between the adjacent receiving antennas. According to the detection system disclosed by the utility model, a step frequency system is adopted, the helical antennas are arranged in a central symmetry manner to form an area array, and the spacing of each array element is accurately calculated, so that the Nyquist sampling theorem is met, and an interference region is small enough as much as possible, thereby avoiding the influence of grating lobes on the array performance.

Hybrid antenna structures for seamless integration of free space and surface electromagnetic wave (SEW) radiation are described. In some examples, the hybrid antenna may comprise a helical antenna free space radiator coupled to an SEW antenna feed point. The system may include a radio frequency switch and reflectometers configured to sense impedance at the helical antenna and SEW feed point, dynamically routing signals based on the sensed impedance. A free space radiation feed line and an SEW radiation feed line may be connected to the radio frequency switch and reflectometers, enabling efficient operation in varying environments. This configuration may allow the antenna to function as a conventional free space radiator or a plasmonic surface wave antenna, optimizing performance without user intervention.