537 results about "Millimeter wave antennas" patented technology

A millimeter wave (MMW) antenna array includes a continuous transverse stub (CTS) radiating aperture comprising a set of spaced continuous transverse stubs, each having a longitudinal extent. A series feed system is coupled to an excitation source for exciting the stubs with MMW electromagnetic energy having a linear phase progression along the longitudinal extent of the stubs to produce an array beam which can be scanned over a beam scan range by changing the excitation frequency.

The invention provides a micro electromechanical cascade millimeter wave antenna, comprising an upper anisotropic substrate, a middle anisotropic substrate and a lower anisotropic substrate. The upper surface deposit of the upper anisotropic substrate is provided with metal and forms a first metal radiation patch by mechanical erosion. The upper surface deposit of the middle anisotropic substrate is provided with metal and forms a second metal radiation patch by mechanical erosion. The upper surface deposit of the lower anisotropic substrate is provided with metal and forms a FGCPW-MS feeder or a MS feeder by mechanical erosion. The upper anisotropic substrate, the middle anisotropic substrate and the lower anisotropic substrate form a unit by MEMS bonding technology. The antenna has small size and light weight, which is also easy for the further integration.

An electronic device and an operation method of an electronic device are provided. The electronic device includes at least one mmWave antenna module configured to include a plurality of antennas, a camera capable of measuring a distance between an external object and the electronic device, a communication processor configured to be operationally connected to the at least one mmWave antenna module, and an application processor configured to be operationally connected to the camera and the communication processor.

A mmWave electronics package constructed from common Printed Circuit Board (PCB) technology and a metal cover. Assembly of the package uses standard pick and place technology and heat is dissipated directly to a pad on the package. Input / output of mmWave signal(s) is achieved through a rectangular waveguide. Mounting of the electronic package to an electrical printed circuit board (PCB) is performed using conventional reflow soldering processes and includes a waveguide I / O connected to an mmWave antenna. The electronic package provides for transmission of low frequency, dc and ground signals from the semiconductor chip inside the package to the PCB it is mounted on. An impedance matching scheme matches the chip to high frequency board transition by altering the ground plane within the chip. A ground plane on the high frequency board encircles the high frequency signal bump to confine the electromagnetic fields to the bump region reducing radiation loss.

The invention relates to a serial-parallel connection modulation optical frequency multiplication millimeter-wave RoF (Radio Over Fiber) system and a QPSK (Quadrature Phase Shift Keying) / 16QAM (Quadrature Amplitude Modulation) modulation method thereof. The system comprises a central station, a base station and fiber connection thereof, wherein the central station comprises a single longitudinal mode laser, a double-electrode Mach-Zehnder optical modulator, an IQ optical modulator, two microwave signal sources, a pi phase shifter, a pi / 2 phase shifter and an erbium doped fiber amplifier; and the base station comprises an optical detector, a front low-noise amplifier, two millimeter-wave bandpass filters, two millimeter-wave amplifiers, a millimeter-wave duplexer and a millimeter-wave antenna. In the method, the cascading of the double-electrode Mach-Zehnder optical modulator and the IQ optical modulator is adopted, and a balanced optical waveguide structure formed by integrating the two optical modulators avoids the influence of optical source phase interference noise caused by support arm optical delay inequality on modulation signals.

A semiconductor chip integrating a transceiver, an antenna, and a receiver is provided. The transceiver is located on a front side of a semiconductor substrate. A through substrate via provides electrical connection between the transceiver and the receiver located on a backside of the semiconductor substrate. The antenna connected to the transceiver is located in a dielectric layer located on the front side of the substrate. The separation between the reflector plate and the antenna is about the quarter wavelength of millimeter waves, which enhances radiation efficiency of the antenna. An array of through substrate dielectric vias may be employed to reduce the effective dielectric constant of the material between the antenna and the reflector plate, thereby reducing the wavelength of the millimeter wave and enhance the radiation efficiency. A design structure for designing, manufacturing, or testing a design for such a semiconductor chip is also provided.

The invention belongs to the field of design and manufacturing of millimeter wave antennas and provides a broadband dual circularly polarized planar waveguide array antenna. The antenna comprises a radiation aperture, a resonant cavity, a feed square waveguide, a circular polarizer, a dual polarization feed network and a standard waveguide interface which are sequentially stacked from top to bottom, wherein the radiation aperture consists of multiple 2*2 atomic arrays arranged in an array; the resonant cavity consists of a square ridge waveguide resonant cavity, a first square waveguide resonant cavity and a second square waveguide resonant cavity which are sequentially stacked from top to bottom; the circular polarizer is formed by inserting a stepped metal membrane into the square waveguide in a center loading manner; the dual polarization feed network consists of a left-hand circular polarization feed network and a right-hand circular polarization feed network; the standard waveguide interface comprises two output ports, namely, a left-hand circular polarization interface and a right-hand circular polarization interface. The broadband dual circularly polarized planar waveguide array antenna with high gain and efficiency is realized.

The invention discloses an array antenna structure, which comprises a radiation unit and a feed network. The radiation unit adopts a plane patch form; the feed network adopts a substrate integrated waveguide form; the overall structure is realized through multilayer printed circuit board technology; and the feed network is characterized by providing a transverse seam in the broad side of the bentsubstrate integrated waveguide, and carrying out feeding on a top metal patch through seam coupling. The invention also discloses a multilayer via-hole structure, which is characterized by closing oneport of the substrate integrated waveguide on some layer of dielectric substrate, and using one plated through hole to transmit radio-frequency signals. Such array antenna structure adopts the bent substrate integrated waveguide transverse seam structure, increases the bandwidth of the array antenna under the condition of realizing a thin dielectric substrate through matching design of the feed network, and realizes that a millimeter wave antenna and a radio frequency front end are on different layers of a multilayer printed circuit board to meet design of a millimeter-wave system having higher requirements for size and width.

The invention mainly belongs to the technical field of microwaves and millimeter waves and particularly relates to a phased array antenna based on meta-material electromagnetic characteristics. The phased array antenna comprises a microstrip patch antenna unit and a feed device. The microstrip patch antenna unit comprises a positive electrode, a dielectric substrate and a negative electrode. The microstrip patch antenna unit adopts a metamaterial as the dielectric substrate. By applying a bias voltage to the metamaterial dielectric substrate and changing the dielectric constant [Epsilon]r of the metamaterial dielectric substrate, a microstrip patch unit to which the bias voltage is applied is enabled in a resonant condition. A microstrip patch unit to which the bias voltage is not applied is not in the resonant condition, to achieve sparsification of the phased array antenna unit. The phased array antenna unit of the present invention controls the excitation phase of the activated radiation unit more precisely so as to improve the pointing accuracy of the main beam of the antenna, increase the antenna gain, reduce the antenna side lobe level, expand the antenna beam scanning range and extend the working bandwidth of the antenna.

A mm-wave antenna apparatus with beam steering function that includes: a Butler Matrix feeding network; a plurality of power combiners, each power combiner having one input and N outputs, configured to apply equal phase and power to a phase distributed output signal generated by the Butler Matrix feeding network and to generate N processed signals; and a plurality of millimeter wave switched beam planar antenna arrays having at least 1.5 GHz of bandwidth and located on a top low loss dielectric substrate, each antenna array of N elements, configured to obtain direct and narrow width beams from the N processed signals combined by each power combiner.

The invention relates to a surface-type millimeter wave scanning three-dimensional holographic imaging safety check system which comprises a millimeter wave signal emission driving module, a millimeter wave signal acquisition module, a millimeter wave signal processing module, a millimeter wave emission antenna and a millimeter wave reception antenna. The millimeter wave emission antenna and the millimeter wave reception antenna form a surface-type millimeter wave antenna array, wherein the surface-type millimeter wave antenna array is used for scanning a region to be detected; the millimeter wave emission antenna is connected with the millimeter wave signal emission driving module; the millimeter wave reception antenna is connected with the millimeter wave signal acquisition module; and the millimeter wave signal processing module is connected with the millimeter wave signal acquisition module. According to the surface-type millimeter wave scanning three-dimensional holographic imaging safety check system, through the surface-type millimeter wave antenna array, single scanning time is greatly reduced; and meanwhile, since equipment does need to be subjected to mechanical rotation, equipment wearing is not easy to cause, service time of the equipment is substantially prolonged and equipment fault is reduced.

An electronic device may be provided with wireless circuitry. The wireless circuitry may include one or more antennas. The antennas may include phased antenna arrays each of which includes multiple antenna elements. Phased antenna arrays may be mounted along edges of a housing for the electronic device, behind a dielectric window such as a dielectric logo window in the housing, in alignment with dielectric housing portions at corners of the housing, or elsewhere in the electronic device. A phased antenna array may include arrays of patch antenna elements on dielectric layers separated by a ground layer. A baseband processor may distribute wireless signals to the phased antenna arrays at intermediate frequencies over intermediate frequency signal paths. Transceiver circuits at the phased antenna arrays may include upconverters and downconverters coupled to the intermediate frequency signal paths.

The invention provides an antenna system and a mobile terminal. The antenna system is applied to a mobile terminal, the mobile terminal comprises a metal frame, the metal frame comprises two corners arranged diagonally and a long frame and a short frame connected with two ends of the corners respectively, the antenna system includes four millimeter wave antenna arrays affixed to an inner side surface of the metal frame, two millimeter wave antenna arrays perpendicular to each other are respectively arranged on the peripheral side of each corner, one of the millimeter wave antenna arrays is disposed at an end of the long frame connected to the corner close to the corner and the other millimeter wave antenna array is arranged at one end of the short frame connected to the corner near the corner, and the metal frame is provided with radiation windows at positions corresponding to the four millimeter wave antenna arrays. The invention provides the antenna system and the mobile terminal with wide frequency band, high coverage efficiency and stable signals.

The present invention discloses a three-dimensional integrated packaging based on a millimeter wave antenna and a silicon-based multi-channel component. The packaging comprises a radiation layer, wherein the radiation layer is a micro-strip patch antenna array; a high resistivity silicon substrate with a TSV feeding structure; a dielectric wiring layer with microwave wirings and digital wirings; asurrounding frame with a TSV three-dimensional vertical transmission structure and an air-tightness packaging cover plate with a TSV transmission structure. According to the packaging, by integratingthe micro-strip patch antenna array, microwave chip(s), digital chip(s) and passive device(s) in a same module via a MEMS process at the same time, the middle part of the surrounding frame has the TSV structure capable of realizing vertical transmission of microwave signal(s), so that integration degree is relative high, the microwave properties are good, the multi-functionalization and the miniaturization of the components can be realized.

The invention discloses a planar antenna for a dual-frequency millimeter wave system. The planar antenna for the dual-frequency millimeter wave system comprises a radiation plate printed at the middle of a medium plate and used for emitting or receiving electromagnetic wave energy, a symmetrical E-shaped groove arranged at the middle of the radiation plate and used for providing a current path needed for dual-frequency resonance, feed structures arranged at two sides of the radiation plate and used for providing signal feed for the radiation plate, a grounding plate arranged on the lower surface of the medium plate and used for providing grounding signals, and an antenna port arranged in the lower surface of the medium plate and used for inputting differential signals to the feed structures. The planar antenna for the dual-frequency millimeter wave system is simple in structure and convenient to popularize in millimeter wave antennas, and the directional diagram height is symmetrical at the millimeter wave frequency band.

The invention discloses a miniaturized broadband dual-polarized magnetoelectric dipole millimeter wave edge-emitting antenna and an array thereof. The edge-emitting antenna comprises a top metal layer(1), a first dielectric layer (2), a second metal layer (3), a second dielectric layer (4), a third dielectric layer (5), a third metal layer (6), a fourth dielectric layer (7), a fifth dielectric layer (8) and a bottom metal layer (9) which are sequentially arranged from top to bottom. A size of a transverse electric dipole is reduced through a longitudinal bending structure, miniaturization isfurther achieved, meanwhile, a dual-polarized antenna array composed of the antenna is also provided, and a millimeter wave antenna and an array structure which are wide in impedance bandwidth, low incomplexity feed structure, low in feed profile and easy to directly integrate in two polarization directions are achieved. In the invention, more than 50% of dual-polarization impedance bandwidth canbe obtained, an in-band gain fluctuation is also lower than 3dB, and a stable directional diagram is provided.

A radome comprises a structure covering an antenna, the structure being substantially transparent to radiation of the antenna in a first direction and being less transparent to radiation of the antenna when deviating from the first direction, thereby imparting a directional profile to radiation of the antenna. The millimeter wave antenna structure comprises a sub-reflector lens, and a reflector, the sub-reflector lens in turn comprising a reflecting metal plate and a lens shaped dielectric material, the lens shaped dielectric material and the reflecting metal plate being shaped together to provide a predetermined radiation illumination pattern on the reflector. A waveguide matching holder connects a circular cross section waveguide via a circular cavity, and a rectangular waveguide feed via a rectangular cavity, the rectangular and the circular cavities being shaped to merge into each other.

The invention discloses a millimeter wave antenna system and a communication device. The millimeter wave antenna system comprises a frame / housing equipped with an antenna slot; a high dielectric coverlayer arranged on the outside of the antenna slot; a signal transmission unit provided on the inner side of the antenna slot; a signal transceiver assembly electrically connected to the signal transmission unit; and an intermediate frequency and baseband processing unit electrically connected to the signal transceiver assembly; The dielectric resonant antenna array of millimeter wave antenna system is composed of the high dielectric cover layer, the antenna slot and the signal transmission unit. The invention provides an antenna system, which has the characteristics of small occupying space,many correctable factors and high working efficiency.

The invention discloses a multiple-substrate integrated waveguide filtering power divider. The multiple-substrate integrated waveguide filtering power divider comprises three dielectric substrates and four layers of metal, wherein the four layers of metal are located on the upper surface of the uppermost substrate, on the lower surface of the lowermost substrate and between the substrates respectively. A rectangular metallization through hole array is formed by metallization holes in the four edges. A rectangular resonant cavity is formed by the rectangular metallization through hole array and the two layers of metal between the substrates. An input port is formed in the left side of the rectangular resonant cavity and an output port is formed in the right side of the rectangular resonant cavity. A one-to-four filtering power divider and a one-to-two same-phase or opposite-phase filtering power divider can be flexibly designed. A substrate-integrated waveguide inductive window filter is embedded between the input port and the output port. The multiple-substrate integrated waveguide filtering power divider has the advantages of being broad in band, low in insertion loss, good in input voltage standing wave ratio, good in consistency of amplitudes of output signals, low in amplitude unbalance and the like. The multiple-substrate integrated waveguide filtering power divider can be applied to a microwave and millimeter wave antenna feed network and the like and has wide application prospect in microwave and millimeter wave systems such as a communication system and radar.

The invention provides an antenna module and electronic equipment. The antenna module comprises a substrate, a millimeter wave antenna array, a radio frequency integrated circuit and a non-millimeterwave antenna, wherein the substrate comprises a ground plate, a first dielectric layer and a second dielectric layer, and the first dielectric layer and the second dielectric layer are located at twosides of the ground plate respectively; the millimeter wave antenna array comprises N dipole antenna units, the N dipole antenna units are sequentially arranged on the substrate at intervals along thesubstrate, and N is an integer greater than 1; the radio frequency integrated circuit is arranged on the first dielectric layer, and the radio frequency integrated circuit is connected with the feeding structures of the N dipole antenna units; and the non-millimeter wave antenna is arranged on the second dielectric layer. Thus, the millimeter wave dipole antenna array and the non-millimeter waveantenna are integrally arranged, so that the integration level of the antenna module is improved, and the space occupied by the antenna is saved.

The invention relates to a millimeter wave imaging method and system. A first millimeter wave antenna array and a second millimeter wave antenna array transmit continuous frequency waves to an arc middle area and receive returned millimeter waves. The first millimeter wave antenna array and the second millimeter wave antenna array move in the vertical direction so as to transmit and receive the millimeter waves in the vertical direction of the arc middle area. An image processing module carries out image combination on the millimeter waves received by a first millimeter wave receiving and transmitting module and a second millimeter wave receiving and transmitting module so that a three-dimensional image of an objected to be imaged can be formed in the arc middle area. According to the millimeter wave imaging method and system, a detecting mode of combining translation scanning of vertical mechanical driving of switch antenna arrays and arc direction scanning is adopted, all-dimensional scanning of the human body can be effectively finished, and the safety inspection efficiency is improved.

The invention discloses a calibration method for a millimeter-wave antenna array. Coarse calibration of the amplitude and the phase of the antenna array is realized through a calibration metal plate by an external reference calibration method; then three-dimensional space reconfiguration of the calibration metal plate is realized by a wavefront reconstruction algorithm based on space frequency interpolation, and precision calibration of the phase is realized by correcting the phase of the antenna array through self-focusing of a three-dimensional space scattering intensity distribution sectional drawing. According to the calibration method, under the condition that an extra calibration algorithm is not added, the precision for calibrating the millimeter-wave antenna array is greatly improved by an imaging algorithm and the external reference calibration method.

A printed circuit board (PCB) assembled to include at least one millimeter wave antenna and a radio frequency integrated circuit (RF IC). The PCB comprises a square-shaped cavity in the PCB, wherein one of the edges of the cavity is substantially parallel to connecting pins of the at least one millimeter wave antenna; a RF IC placed in the cavity, wherein one side of the RF IC including RF pads is substantially at the edge of the cavity that is substantially parallel to the connecting pins; and traces connecting the RF pads and the connecting pins, wherein the connection between the at least one millimeter wave antenna and the RF IC shortens the length of the traces.

The invention relates to a low-complexity and high-precision defense system for a small unmanned aerial vehicle. The system carries out 360-DEG circular trajectory scanning on airspace with an unknown height through a mechanical turntable loaded with a millimeter wave antenna, and linear frequency modulation sawtooth waves with a fixed bandwidth are transmitted. Firstly, mixing at a receiver front end is carried out to obtain beat signals; then, range direction FFT is carried out on the beat signals, and phase compensation is used for virtualizing an antenna array to a uniform linear array and through beamforming, the signal-to-noise ratio is improved; then, an improved CFAR algorithm with a unit average small selection criterion is used for signal detection, and the height angle and the distance of a target are estimated; and finally, according to the distance and the height angle, azimuth direction is carried out to obtain the image of the unmanned aerial vehicle. As for a low-altitude low-speed unmanned aerial vehicle, one position of the target can be obtained whenever the radar rotates for one circle, and the path of particle of the target is further drawn. SAR imaging and airspace signal processing algorithm are combined creatively, and uninterrupted monitoring on the airspace with an unknown height can be realized.

A test fixture for an integrated circuit (IC) device under test (DUT) includes: a metallic casing; and first and second antennas secured respectively in first and second RF anechoic chambers in the metallic casing and coupled to a programmable attenuator. The IC DUT is positioned on or in the metallic casing so that an integrated millimeter wave (MMW) antenna thereof is aligned with the first antenna to radiate an MMW signal toward the first antenna through the first RF anechoic chamber. A predetermined MMW signal, which is radiated from an MMW source secured in the second RF anechoic chamber toward the second antenna, is received by the second antenna, is attenuated by the attenuator, and is radiated by the first antenna toward the MMW antenna of the IC DUT.

A device used for generating QPSK millimeter wave of radio frequency optical fiber transmission system consists of semiconductor laser of central station, polarization controller, optical phase modulator, optical comb fiber, optical QPSK modulator, optical branching unit / combining unit, optical detector of base station, narrow band band-pass filter, millimeter wave amplifier and millimeter wave antenna. Its optical modulating method for obtaining QPSK modulated millimeter wave signal is also disclosed.

A semiconductor chip integrating a transceiver, an antenna, and a receiver is provided. The transceiver is formed on a front side of a semiconductor substrate. At least one through substrate via provides electrical connection between the transceiver and the backside of the semiconductor substrate. The antenna, which is connected to the transceiver, is formed in a dielectric layer on the front side. The reflector plate is connected to the through substrate via, and is formed on the backside. The separation between the reflector plate and the antenna is about the quarter wavelength of millimeter waves, which enhances radiation efficiency of the antenna. An array of through substrate trenches may be formed and filled with a dielectric material to reduce the effective dielectric constant of the material between the antenna and the reflector plate, thereby reducing the wavelength of the millimeter wave and enhance the radiation efficiency.

The invention discloses a gap waveguide series feed high-gain millimeter wave antenna, and the antenna comprises a high-efficiency radiation unit subarray layer, a gap waveguide slot-coupling series feed network and a waveguide slot-coupling feed structure. The high-efficiency radiation unit subarray layer comprises a rectangular metal medium resonant cavity and a metal layer which is disposed on the upper surface of the rectangular metal medium resonant cavity in a coated manner and is provided with four rectangular slots. A wide side of a rectangular waveguide is provided with a coupling slot, so as to achieve the feed of the center of each gap waveguide. The plurality of gap waveguides are laterally arranged in an aligned manner to form a two-dimensional feed network. The wide side of each gap waveguide is provided with a coupling slot, so as to achieve the feed of each corresponding radiation subarray of the upper layer. The subarrays are excited to radiate energy to a space. The antenna provided by the invention works at the millimeter wave frequency band nearby 77GHz, is high in efficiency, is good in radiation characteristics, is low in cost, is easy to machine, is small in size, is high in stability, and is suitable for batch production.

The invention provides terminal equipment. The terminal equipment comprises a feed source, a metal frame and radiation pieces; at least two grooves are formed in the outer side surface of the metal frame, and two through holes are formed in each groove; each groove is internally provided with the radiation piece; the metal frame is grounded; two antenna feed points are arranged on each radiation piece, and the feed source is connected to one feed point through one through hole, and the antenna feed points in each groove correspond to the through holes in a one-to-one correspondence mode; and each radiation piece is insulated from the corresponding groove through a non-conductive material. At least two grooves and the radiation pieces arranged in the grooves, and the feed source are equivalent to a millimeter wave array antenna of the terminal equipment, and the metal frame also can be a radiation body of a non-millimeter wave communication antenna, so that the accommodating space of the millimeter-wave antenna is saved, and the size of the terminal equipment can be reduced.

A microwave phased array antenna module. The antenna module includes a mandrel having an integrally formed waveguide splitter. Separate electromagnetic wave energy distribution panels that each include DC power, data and logic interconnects, as well as electronic modules incorporating ASICs, phase shifters and power amplifiers, are disposed on opposite sides of the mandrel. Waveguide coupling elements are further secured to the mandrel on opposing sides thereof to couple the electromagnetic wave energy received through an input port of the mandrel with each of the distribution panels. Antenna modules are disposed within openings formed in a second end of the mandrel and electrically coupled via electrical interconnects with the distribution panels. The use of the distribution panels provides ample room for the needed electronics while the use of radiating modules disposed at the second end of the mandrel in a brick-type architecture arrangement relative to distribution panels, enables the extremely tight radiating module spacing needed for V-band operation at up to + / −60° scan angles.