86 results about "Helical antenna" patented technology

An external TPMS sensor for heavy-duty trucks comprises a helical antenna and a 1225 cell, and is installed outside a tire of a vehicle; and system power consumption is reduced by increasing the communication rate of the TPMS sensor, and / or decreasing the sampling period, and / or decreasing the number of data frames transmitted every time, and / or decreasing RF output power, and / or disposing an LNA circuit at an input terminal of a corresponding receiver antenna. The requirement of the TPMS sensor for a long service life is met by reducing system power consumption; the helical antenna, the matching network, and the 5 dBm chip for outputting power are used to realize miniaturization of the TPMS sensor; and the 1225 cell is used, which, compared with traditional TPMS sensors, allows the diameter of the TPMS sensor to be reduced by about 8 mm and the weight of the TPMS sensor to be reduced by over ⅓, such that miniaturization of the TPMS sensor is further realized.

A helix antenna and methods of making and using helix antenna to concurrently or independently radiate pulses in a very high frequency (VHF) band in a range of about 240 MHz to about 270 MHz and / or in an ultrahigh frequency (UHF) band in a range of about 360 MHz to about 380 MHz which can be useful in space to ground data transmissions, subsurface radar, and measurement of ice and snow pack.

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.

The application discloses a kind of wideband helical antenna auxiliary vibrating rod positioning method, and the position and time information are obtained by receiving the signal sent by reference station through master control box, and then positioning is realized after processing calculation;Worker's head coordinate is collected by wideband single helix positioning antenna, and the coil number in vibrating rod is obtained by flexible antenna;Euler angle is collected by attitude angle sensor inside master control box, and the grip point coordinate is obtained by head coordinate and Euler angle, the distance from grip point to vibrating rod insertion end point is calculated, the coordinate of grip point is obtained, finally the insertion point coordinate of vibrating rod is calculated by the coordinate of grip point, this method is simple and feasible, and wideband single helix antenna provides stable positioning performance in complex signal environment, with high accuracy and high stability.

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 application discloses a kind of based on double-sided spiral wiring and low profile ultra-wideband antenna device of lossy open resonant ring loading, including double-sided spiral antenna structure, lossy open resonant ring structure, metal back cavity and balun, wherein the upper and lower surfaces of double-sided spiral antenna structure are respectively provided with Archimedes spiral arm, and are provided with the metal via hole that is connected with different levels spiral arm;The lossy open resonant ring structure is provided with annular dielectric substrate, and a circle of open resonant ring loaded with resistance is arranged on the upper surface thereof;Double-sided spiral antenna structure is located above the lossy open resonant ring structure, and both are arranged in the metal back cavity;Balun is vertically arranged in the center of metal back cavity, and the top end is respectively connected with the two spiral arms on the upper surface of circular dielectric substrate, and the bottom end is arranged on the bottom surface of metal back cavity and connected with external antenna interface through through-hole.The antenna device with improved structure has ultra-wideband, low profile, high gain, unidirectional radiation and good circular polarization characteristics.

The radio frequency device is characterized in that the radio frequency device is provided with a spiral antenna and a radio frequency module, and the first end of the spiral antenna is electrically connected with a radio frequency interface of the radio frequency module; the spiral antenna structurally comprises a core material and a spiral conductor wound and fixed on the periphery of the core material. The spiral conductor is made of a single or a plurality of bundled metallized fibers, metal wires or carbon fiber wires, and the radius of each metallized fiber, metal wire or carbon fiber wire is 1t; the frequency of the radio-frequency signal is five times of the skin depth when the radio-frequency signal is transmitted on the metallized fiber, the metal wire or the carbon fiber wire; the helical antenna has an extremely high quality factor, so that a communication distance which is several times of that of a traditional helical antenna is obtained under the same power.

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.

An antenna designed for receiving satellite signals (e.g., GNSS or SDARS) comprises a first dielectric substrate having a conductive ground plane layer on a lower surface. A second dielectric substrate is arranged opposite an upper surface of the first dielectric substrate, with a first and a second helical antenna element embedded on an upper surface of the second dielectric substrate, each having origin ends separated by a gap. A plurality of conductive spots are arranged on at least one of the first or the second dielectric substrates between the upper surface of the first dielectric substrate and a lower surface of the second dielectric substrate.A multitude of conductive vias extend through the first dielectric substrate, connecting the conductive areas to the ground plane. A first and a second RF transmission line are each coupled to the origin ends.

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.

The invention relates to the technical field of wireless communication, and particularly discloses a four-arm helical antenna. The antenna comprises a metal floor, a supporting medium and a radiation assembly which are sequentially arranged, wherein the radiation assembly is innovatively combined by a spiral arm structure and a top loading patch. The spiral arm is integrated on the surface of the supporting medium in a precise winding mode, the top end loading patches are printed on the upper surface and the lower surface of the circular medium substrate through a double-face copper-clad structure, and electrical connection is innovatively achieved through a three-dimensional interconnection structure. Four sets of metalized through holes in the outer side complete coupling connection of the patches and the spiral arm. The two groups of metalized through holes on the inner side are connected with an outer conductor of a coaxial feeder line, and the central metalized through hole is directly communicated with an inner conductor of the feeder line. According to the antenna, through unique spatial layout and impedance matching design, a complex feed network is not needed, the matching characteristic is good, the low-elevation radiation characteristic is good, the azimuth plane has the omnidirectional radiation characteristic, and the antenna is suitable for wireless systems needing full-space coverage such as satellite communication and navigation positioning.

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 leaky coaxial cable comprises a cable body and a three-dimensional spiral antenna arranged at the tail end of the cable body, the cable body comprises a sheath, an outer conductor, an insulating layer and an inner conductor, and the insulating layer, the outer conductor and the sheath are sequentially arranged on the outer side of the inner conductor; wherein the outer conductor is provided with a plurality of spiral slotted holes along the axial direction, and the spiral slotted holes are periodically arranged. According to the invention, the outer conductor is provided with the spiral slotted hole structure, so that the outer conductor has stronger radiation signal intensity and more uniform signal coverage, thereby reducing signal blind areas in a closed space, enabling the outer conductor to have stronger radiation signal intensity and more uniform signal coverage, reducing signal blind areas in the closed space, and improving the signal transmission efficiency. Meanwhile, the three-dimensional helical antenna is arranged at the tail end of the leaky coaxial cable of the cable body, thereby increasing the signal radiation distance and enlarging the signal radiation range.

Method and machine to assemble a transponder (9) provided with a helical antenna (11) in a component (1) of an article. The following are provided: a main conveyor (15) which is designed to move, along an assembling path (P) a carriage (16) carrying at least one seat (18) designed to house the component (1); an input station (S1), which is arranged along the assembling path (P) and is configured to place the component (1) in the seat (18) of the carriage (16); a feeding station (S4), which is arranged along the assembling path (P) downstream of the input station (SI) and is configured to couple an integrated circuit (10) provided to two electrical contacts (12) to the component (1); a winding station (S5), which is arranged along the assembling path (P) downstream of the feeding station (S4) and is configured to wind an externally insulated conductor wire (13) around the component (1) in order to obtain a series of turns making up the helical antenna (11); and a welding station (S6), which is arranged along the assembling path (P) downstream of the winding station (S5) and is configured to weld two opposite ends of the helical antenna (11) against the two electrical contacts (12) of the integrated circuit (10).

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.

A composite helical antenna oscillator provided by the present invention comprises a base, a protective shell, a fixing device and an antenna oscillator, the antenna oscillator is fixedly mounted on the surface of the base, and the fixing device comprises a fixing sleeve, a fixing ring, a plurality of mounting grooves, a plurality of limiting grooves, a plurality of limiting blocks, a plurality of fixing grooves, a plurality of fixing blocks, a rotating ring and a fixing seat. The bottom of the fixing sleeve is fixedly connected to the top of the base, the fixing ring is slidably connected into the fixing sleeve, and the multiple mounting grooves are formed in the fixing ring. According to the composite helical antenna oscillator and the antenna system provided by the invention, after the fixed ring at one end of the protective shell is inserted into the fixed sleeve, the protective shell and the antenna oscillator are fixed by matching the plurality of mounting grooves with the plurality of limiting grooves, the plurality of limiting blocks, the plurality of fixed grooves, the plurality of fixed blocks, the rotating ring and the fixed seat; therefore, the protective shell and the antenna oscillator can be conveniently and quickly assembled, and the working efficiency is improved.

The present disclosure provides a sheet antenna for vehicle-satellite communication. An antenna adapted to receive satellite signals (e.g., GNSS or SDARS) includes a first dielectric substrate having a conductive ground plane layer on a lower surface thereof. A second dielectric substrate is juxtaposed with an upper surface of the first dielectric substrate, where the first and second helical antenna elements are interposed on an upper surface of the second dielectric substrate, and where the first and second helical antenna elements each have a respective start end separated by a gap. A plurality of conductive patches are disposed in an array on at least one of the first dielectric substrate or the second dielectric substrate between the upper surface of the first dielectric substrate and a lower surface of the second dielectric substrate. A plurality of conductive vias extend through the first dielectric substrate to connect the conductive patch to the ground plane layer. The first RF transmission line and the second RF transmission line are respectively coupled to the start end.

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.

A lamp includes a single one-layer metal core printed circuit board (PCB). The one-layer metal core PCB includes a plurality of light emitting diodes (LEDs), an LED driver circuit, a microcontroller unit (MCU) that provides wireless connection and control to the LED driver circuit, and a power supply circuit that provides power to the LEDs and the MCU. The lamp includes an antenna, such as a helical antenna or a monopole antenna, mounted on a single one-layer metal core PCB. A capacitor and / or inductor may be mounted on a bottom side of the one-layer metal core PCB opposite a top side of the one-layer metal core PCB on which the LED is mounted. The lamp is powered by a circuit. The LEDs are disposed at the periphery of the top side of the PCB, and the MCU and other circuitry are disposed inside the periphery on the top side of the PCB.