443results about "Particular array feeding systems" patented technology

A method for manufacturing a nozzle cap, the method including attaching an antenna printed circuit board (“PCB”) strip to an inner cover surface of an antenna cover; and inserting the antenna cover into a scallop defined by a circumferential wall of a cap body to position the antenna PCB strip between the antenna cover and the circumferential wall, the circumferential wall defining an outer wall surface, the antenna cover covering the scallop, the scallop extending radially inward into the circumferential wall relative to a first portion and a second portion of the outer wall surface, the scallop circumferentially positioned between the first portion and the second portion of the outer wall surface.

The invention discloses a linear polarization scattering reconfigurable array antenna, which belongs to the technical field of antenna manufacturing and comprises an antenna unit, an extension socket, a transmission type phase shifter and an inductor. The antenna unit comprises a radiation patch, a first dielectric substrate, a metal via hole, a metal patch, a second dielectric substrate, a perforated metal floor, a third dielectric substrate, a feed metal column and a radio frequency coaxial connector, the radio frequency coaxial connector is connected with the radiation patch through the feed metal column, and a variable capacitance diode and a capacitor are arranged on the transmission type phase shifter. The transmission type phase shifter is connected with the radiation patch through the feed metal column, the variable capacitance diode is connected with the punching metal floor, the bottom of the third dielectric substrate is provided with a direct current bias line, the direct current bias line is connected with the transmission type phase shifter through the inductor, and the transmission type phase shifter is connected with the radiation patch through the feed metal column. According to the invention, flexible regulation and control of antenna scattering beams can be realized, and the antenna has the characteristics of flexible control, fast response speed and high radiation efficiency.

A vertically-polarized omnidirectional antenna, including: a body including: a host printed circuit board (PCB) including: first and second slots, and a metal flooded ground plane, first and second antenna PCBs forming four dipole pairs, the first and second antenna PCBs mounted to the host PCB, respective first to third ground connection fillet tabs, the first and second tabs being on an opposite side of the host PCB from the third tab, the first to third tabs being on a same side of its antenna PCB, an amplitude taper on each antenna PCB at transitions between the host and antenna PCBs, including: a first transmission line splitting off into a second transmission line and a third transmission line, the second transmission line feeding two antennas to form one dipole pair, the third transmission line stepping down using a quarter-wave transformer, and a radio frequency (RF) connector to receive a power supply.

A mobile terminal includes: a casing including a metal frame and a rear cover, wherein the metal frame is provided with a plurality of slots to divide the metal frame into a plurality of metal parts arranged at intervals; an antenna bracket being provided with a plurality of wirings; a first antenna assembly including a plurality of antenna structures, wherein the plurality of antenna structures are formed based on a plurality of metal parts arranged at intervals and a plurality of wirings, and a working frequency band of the plurality of antenna structures is a sub-6G frequency band; and a second antenna assembly including a plurality of millimeter-wave antenna modules, wherein a working frequency band of the plurality of millimeter-wave antenna modules is a millimeter-wave frequency band.

A vehicle includes a window having an antenna assembly. The window includes a glass surface, a metal frame around the glass surface, and a set of defroster wires in the glass surface. A top wire of the set of defroster wires is separated from a top edge of the metal frame by an antenna region. The antenna is disposed in the antenna region. The antenna has a first end and a second end opposite the first end. The first end intersects a horizontal cover line of the metal frame tangentially. A feed line connects to the first end at the horizontal cover line. A ground line electrically couples the second end of the antenna to the metal frame.

A magneto-electric dipole antenna includes a substrate module, a director, a reflector and a feeding module. The substrate module has an upper surface and a lower surface. The director is disposed on the upper surface of the substrate module. The reflector is disposed on the lower surface of the substrate module. The feeding module is disposed in the substrate module between the director and the reflector. When a to-be-outputted signal is fed to the feeding module, a forward radiation that transmits in a forward direction pointing from bottom to top is generated, a backward radiation that transmits in a backward direction reverse to the forward direction is generated and is reflected by the reflector, and the forward radiation and the backward radiation thus reflected are directed by the director so as to generate the electromagnetic wave.

This application provides a terminal antenna and a mobile terminal device. The terminal antenna includes a frame, a first feed, and a second feed. A part of the frame on a side of the first gap away from the second gap forms the first conductor, a part of the frame on a side of the second gap away from the first gap forms the second conductor, and the frame between the first gap and the second gap forms the third conductor. The first feed is electrically connected to the first conductor, so that the first conductor radiates a signal, and the second feed is electrically connected to the second conductor, so that the second conductor radiates a signal in a low band.

A three-dimensional (3D) antenna array system in the form of a phased array antenna having a first antenna array and a second antenna array, a calibration circuit including an external signal generator, and a hinged power transformer is described. The external signal generator is electrically connected to the first antenna array, and the first antenna array is electrically coupled to the second antenna array via the hinged power transformer. The hinged power transformer mechanically joins the first antenna array to the second antenna array in one of a first position and a second position, with the first antenna array being disposed at an angle in relation to the second antenna array when the hinged power transformer is disposed in the first position.

An antenna device comprising an antenna array for transmitting a signal. The antenna array includes a plurality of radiating elements with each radiating element configured to radiate the signal with a predetermined phase. The antenna device further including another radiating element that is not part of the antenna array. The phase of the signal for each radiating element of the antenna array is controlled such that the signals radiated by the radiating elements of the array interfere destructively at at least part of the other radiating element.

The invention provides a leaky-wave antenna and a frequency-modulated continuous wave generation method based on the leaky-wave antenna, and relates to the field of millimeter-wave radar, and the method comprises the steps: constructing a space-time coding matrix, configuring a radiation unit state regulation and control beam direction in a space domain, modulating a radiation unit state switching rule in a time domain to generate a frequency-modulated continuous wave, and achieving space-time dual-domain regulation and control. And frequency-modulated continuous waves with controllable bandwidth are generated. The space-time coding leaky-wave antenna is formed by alternately arranging 1-bit radiation units in an upper row and a lower row, switching of radiation / non-radiation states is achieved by loading a synchronous bias PIN diode across an annular gap, a space-time coding matrix is constructed, the states of the radiation units are configured in a space domain to regulate and control the wave beam direction, and the space-time coding leaky-wave antenna is formed. Modulating the switching rule of the radiation unit in a time domain, and generating a frequency-modulated continuous wave; the radiation efficiency is improved by the alternative arrangement of the radiation units, the control difficulty and the hardware cost are reduced, multiple functions are integrated into a single device, and the problem of low integration level of the traditional separation architecture is solved.

A multi-antenna solution for use in electronic devices is an intelligent multi-antenna solution that deploys antennas at the top, side, and bottom of the electronic device, forming three antenna groups at the top, middle, and bottom respectively. This solution takes into account antenna performance in various scenarios, such as free space scenarios, vertical screen holding scenarios (e.g., voice call scenarios), and horizontal screen holding scenarios (e.g., gaming scenarios), thereby improving antenna radiation efficiency.

A horizontally-polarized omnidirectional antenna, including: a body including: a host printed circuit board (PCB) including: a metal-flooded ground plane, windows, and an interconnect providing a radio frequency (RF) signal splitting off into 2*Z0 transmission lines, a plurality of antenna elements, corresponding to respective windows, including: an antenna PCB including an antenna slot having a pullback region with the host PCB therein without directly contacting the pullback region, the window in the antenna slot, loops of conducting strips at top and bottom sides of the antenna PCB, slightly overlapping to form capacitive elements at overlap regions, a pair of input solder joints at respective input conducting strips on the top of the antenna PCB, on opposite sides of the window, a transmission feed solder joint directly between the pair of input solder joints across the window, connected to a Z0 feed line, and an RF connector receiving an antenna power supply.

The invention discloses a 4D millimeter wave radar antenna and a nested array and an anti-interference design method thereof. According to the method, a multi-transmitting and multi-receiving orthogonal array is adopted to construct a larger equivalent virtual aperture under a limited size, and hardware adopts a double-layer waveguide and is matched with multi-resonance broadband matching to cover 76-81 GHz; a multifunctional nested sub-array is introduced to realize division cooperation of long-distance narrow beam, short-distance high resolution and pitching enhancement, and a side lobe is suppressed and the size of an array plane is reduced by sharing aperture and channel multiplexing; the frequency spectrum orthogonality and mutual interference resistance of the same-domain radar are improved through segmented calibration, online interference detection and sub-band selection and switching; on the premise of meeting the resolution, the size of the module is reduced through sparse topological optimization. According to the method, the stable detection distance and the weak and small target detection capability can be improved, the fusion and false association probability is reduced, unnecessary braking is reduced, missing detection / false alarm caused by mutual interference is reduced, and the constraint on the whole vehicle model and the installation window is reduced.

A hearing device, in particular a hearing aid, includes a multi-feed antenna apparatus with at least two antenna branches. Each antenna branch is connected to a line. The lines are interconnected at a connection point and are routed through a filter and a first matching network to a transceiver circuit. A second matching network is assigned to each antenna branch for a phase shift and matching. A multi-feed antenna apparatus for the hearing device is also provided.

A waveguide feed array includes overlapping clusters of elementary feeds, each feed configured to operate in at least two distinct frequency bands with dual-polarization in each frequency band. The feeds have at least four waveguide ports each, one for each pairing of frequency band and polarization, and are connected through beamforming networks, one per frequency band. Clusters of feeds each have at least two beamforming networks and at least two common ports. The waveguide feed array further has a main longitudinal direction that is substantially orthogonal to a plane of an aperture of the waveguide feed array, the plane being defined by two main directions. Adjacent clusters along a first of the main directions are configured to operate, for a given frequency band, in different polarizations. At least one feed of each cluster is rotated around the main longitudinal direction with reference to the other feeds of said cluster.

An antenna module implemented as a multi-layered package includes: a printed circuit board (PCB) having a plurality of layers; a radio frequency integrated circuit (RFIC) disposed on a first surface among outermost surfaces of the PCB; a first array antenna disposed on a second surface, perpendicular to the first surface, among the outermost surfaces of the PCB; a second array antenna disposed on a third surface, perpendicular to the first and second surfaces, among the outermost surfaces of the PCB; and a third array antenna disposed on a fourth surface, perpendicular to the second and third surfaces, among the outermost surfaces of the PCB. First to third signal lines connected to the first to third array antennas form first to third coplanar waveguide structures in which first to third ground regions are formed, respectively.

The invention discloses a phased-array antenna control method and system based on impedance matching, a medium and a product, and relates to the technical field of antennas. In the method, before the phased-array antenna works, a target impedance matching parameter is calculated for active input impedance under each preset scanning angle point; establishing a target mapping relation table based on the plurality of preset scanning angle points and the corresponding target impedance matching parameters; during the working period of the phased-array antenna, receiving a target scanning angle, and calculating to obtain a corresponding beam pointing phase value for each antenna unit in the antenna array according to the target scanning angle; determining a real-time impedance matching parameter based on the target scanning angle and the target mapping relation table; and loading the beam pointing phase value to a phase shifter in the feed network, and applying a real-time impedance matching parameter to the dynamic impedance matching network, so that the input impedance of the antenna array is matched with the characteristic impedance of the feed network. By implementing the technical scheme provided by the invention, the radio frequency performance of the phased-array antenna is improved.

Each antenna element within the array is oriented substantially coplanar with respect to the other antenna elements. The array overlies a primary dielectric substrate. A ground plane layer is spaced apart from the array of antenna elements by a first dielectric spacer. A beam-forming layer is spaced apart from the array of antenna elements by a second dielectric spacer. The beam-forming layer has a set of electrically conductive beam-forming antenna elements overlying a secondary dielectric substrate. A combining network is configured for combining the received electromagnetic signal components from the array, wherein the combining network cooperates to yield or receive a radiation pattern that is generally circularly polarized at the target wavelength range.

Dual-polarized antenna, including several antenna elements arranged in cell units. Each cell unit includes four antenna elements and two 1-to-4 junctions, a first of the two junctions being associated with a first polarization and a second of the two junctions being associated with a second polarization. The antenna also includes an array of dividers / combiners. The four antenna elements of each cell unit are superposed and several cell units are juxtaposed. Each cell unit includes two antenna elements and two other antenna elements which are offset.

A phased-array apparatus and a phased-array system are provided. The phased-array apparatus is connected to an antenna element. The phased-array apparatus includes a first chip and a first functional layer. The first chip is configured to send and / or receive a first signal. A redistribution wiring is disposed on the first functional layer, and the redistribution wiring is configured to connect the first chip and the antenna element. The first functional layer is disposed on a first surface of the first chip, a normal direction of a plane on which the first surface of the first chip is located is perpendicular to a normal direction of a plane on which a surface of the antenna element is located, and a transmission direction of the first signal is parallel to the normal direction of the plane on which the surface of the antenna element is located. In this way, a chip is disposed in a direction perpendicular to the surface of the antenna element, and a wiring on a surface of the chip connects the chip and the antenna element, thereby shortening a length of the wiring, shortening a transmission path of a chip signal, and reducing a signal transmission loss.

The circularly polarized metasurface antenna comprises a metasurface layer, a first dielectric plate layer, a metal floor layer, a second dielectric plate layer and a feed network layer which are sequentially stacked from top to bottom, the metasurface layer comprises a plurality of mutually orthogonal metasurface subunits, each metasurface subunit comprises a plurality of metasurface structures arranged in an array period, and each metasurface structure is provided with a monopole radiation structure; the feed network layer is provided with a plurality of output feed points, and the number of the output feed points is the same as that of the metasurface structures. The output feeding points are connected with probes, and the probes sequentially penetrate through the second dielectric plate layer, the metal floor layer and the first dielectric plate layer until the probes are connected with the input feeding points of the corresponding radiation structures. According to the antenna, each layer adopts a covering laminated design, the structure is compact, the antenna has the characteristics of ultra-wideband circular polarization radiation, high gain and good cross polarization, the dual ultra-wideband characteristics of working and RCS reduction are realized, the RCS reduction bandwidth completely covers the working bandwidth, and effective invisibility in and out of the antenna band is achieved.

Disclosed is an antenna array system including an antenna array of N≥2 antenna elements that output N antenna signals; an interferer-nulling beam forming network (IN-BFN) coupled to the antenna array, N non-linear filters coupled to the IN-BFN, and a desired signal BFN. The IN-BFN may include N "null BFNs" to generate N null signals, each null BFN applying a respective nulling beam weight set to the N antenna signals to generate a respective one of the N null signals. Each respective nulling beam weight set corresponds to a different respective set of (N-1) independent nulls. Each of the N non-linear filters may filter a respective one of the N null signals to provide a respective one of N filtered signals. The desired signal BFN may apply a desired signal beam weight set to the N filtered signals to generate an output signal.

The present application relates to the technical field of virtual reality, and particularly relates to a wearable device and an antenna control method. The wearable device comprises a handle and a head-mounted display, the head-mounted display comprising a first antenna, the first antenna comprising a first feed point and a second feed point, the handle comprising a second antenna, and the second antenna comprising a third feed point and a fourth feed point, wherein a first target pattern is generated when the first antenna is fed via a first target feed point among the first feed point and the second feed point, a second target pattern is generated when the second antenna is fed via a second target feed point among the third feed point and the fourth feed point, and an antenna radiation range indicated by the first target pattern at least partially overlaps with an antenna radiation range indicated by the second target pattern. In this way, a pattern of the head-mounted display can be kept aligned with an antenna pattern of the handle, thereby maintaining good communication quality between the head-mounted display and the handle.

The embodiment of the invention provides a dual-polarization indoor distribution antenna, and belongs to the antenna communication equipment technology, the dual-polarization indoor distribution antenna comprises a vertical polarization radiation unit and a horizontal polarization radiation unit, the vertical polarization radiation unit comprises a grounding plate and a conical radiation oscillator arranged on the grounding plate, the conical radiation oscillator is used for being excited to radiate vertical polarization electromagnetic waves; the horizontally polarized radiation unit comprises a plurality of radiation subunits, the plurality of radiation subunits are sequentially arranged around the peripheral side of the conical radiation oscillator, a radiation gap is formed between every two adjacent radiation subunits, and the radiation gaps are used for being excited to radiate horizontally polarized electromagnetic waves; the orthographic projection of the radiation subunit on the grounding plate is located in the grounding plate. According to the dual-polarization indoor distribution antenna provided by the embodiment of the invention, broadband coverage can be realized, and the multi-band requirement of an indoor communication system is met.

An emission element for a waveguide antenna has a first waveguide portion, with a first rectangular cross section. The emission element comprises a second waveguide portion, the second waveguide portion having a second rectangular cross section. The emission element further comprises a third waveguide portion which, at a first end, adjoins the second waveguide portion and, at a second end, has at least two rectangular openings separated by webs, a dimension of the third waveguide portion at the second end being greater than a dimension of the second waveguide portion. An electromagnetic wave can be fed from the first waveguide portion into the second waveguide portion via a slit in the second waveguide portion and emitted via the openings in the third waveguide portion.

The application belongs to the technical field of antennas, and discloses an S / Ka-band common-aperture antenna and communication equipment, which comprises a first dielectric plate and a second dielectric plate stacked from top to bottom; the top surface, the middle and the bottom surface of the first dielectric plate are respectively provided with a rectangular patch array, a first metal through hole and a first metal layer; wherein the rectangular patch array, the first metal through hole and the first metal layer form a magneto-electric dipole antenna array; the magneto-electric dipole antenna array works in the Ka-band and is used for realizing satellite communication; the top surface, the middle and the bottom surface of the second dielectric plate are respectively provided with a second metal layer, a second metal through hole and a third metal layer; wherein the second metal layer, the second metal through hole and the third metal layer form a low-profile monopole antenna; the low-profile monopole antenna works in the S-band and is used for realizing ground equipment communication; the application has a simple structure, can realize different beams and polarization characteristics, effectively improves the space utilization rate of the antenna and has high integration.

The invention provides a two-dimensional extensible sub-array based on a long and narrow circuit channel, and relates to the technical field of millimeter wave / terahertz frequency band phased array front-end, and the two-dimensional extensible sub-array comprises a plurality of two-channel sub-arrays; taking the two-channel sub-array as a standard sub-array module, and expanding the standard sub-array module to a target channel number step by step through cascading in a two-dimensional direction; the two-channel sub-array comprises a two-channel chip and a two-channel antenna sub-array; the two-channel chip comprises two circuit channels which are distributed side by side, and respective antenna ports, common ports and signal flow directions of the two circuit channels are opposite; each antenna unit in the two-channel antenna sub-array covers one side, close to the antenna port, of the corresponding circuit channel; wiring modes and lengths of interconnection lines between the two antenna ports and the corresponding antenna signal feed points are consistent; the width of the circuit channel does not exceed 0.25 lambda, and the length of the circuit channel does not exceed 1 lambda. Standard sub-arrays can be modularized, a large-scale two-dimensional extensible full array is supported, main hot spots are dispersed, and uniform heat dissipation is facilitated.

A differential feed dual-polarization super-directivity array antenna comprises a plurality of array units, and each array unit comprises a supporting structure, a main radiator, a metal floor and a radiation parasitic structure. The metal floor is arranged below the supporting structure, the main radiator is arranged in the supporting structure, the radiation parasitic structure is arranged above the supporting structure, and the main radiator is connected with a metal coaxial connector arranged on the metal floor through the feeder line structure. According to the invention, a dual-polarization radiation mode is realized by adopting two pairs of differential port feed structures, and an array design scheme with a super-directivity characteristic can be realized under two polarizations, so that the directivity upper limit value of a traditional aperture antenna scheme is broken through, and the capacity and the performance of a communication system are remarkably improved.

An antenna assembly includes a first antenna and a second antenna. The first antenna includes a first radiator, a first signal-source, a first matching circuit, and a first adjusting circuit. The first signal-source is electrically connected to the first matching circuit to the first radiator, and the first adjusting circuit is configured to adjust a resonant frequency-point of the first antenna to make the first antenna support an electromagnetic wave signal in a first frequency band. The second antenna includes a second radiator, a second signal-source, a second matching circuit, and a second adjusting circuit. The second signal-source is electrically connected to the second matching circuit to the second radiator, the second adjustment circuit is configured to adjust a resonant frequency-point of the second antenna to make the second antenna support an electromagnetic wave signal in a second frequency band and a third frequency band.

A phased-array apparatus includes a first chip configured to one or more of send or receive a first signal. The phased-array apparatus also includes a first functional layer on a first surface of the first chip. The first chip is connected to an antenna element by way of a redistribution wiring on the first functional layer. The redistribution wiring extends along the first surface of the first chip. A normal direction of a first plane on which the first surface of the first chip is located is perpendicular to a normal direction of a second plane on which a surface of the antenna element is located.