126 results about "Millimeter wave antennas" patented technology

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.

The invention relates to the technical field of antennas, in particular to a millimeter wave FPC multi-domain self-adaptive tuning antenna and a tuning method thereof, and the method comprises the following steps: S1, constructing an antenna initial topology and frequency model; s2, generating a bionic structure by adopting a topological self-growing algorithm based on the power density distribution; s3, a tuning material with a physical response characteristic is embedded, and impedance and frequency are adjusted by externally stimulating the tuning material; s4, arranging a liquid metal microfluidic channel in the key area, and dynamically reconstructing a conduction path; s5, combining AI image recognition and near field detection to obtain antenna state data; and S6, inputting the acquired antenna state data to an optimization control unit for closed-loop tuning. According to the millimeter wave FPC antenna, structure self-adaption and frequency self-tuning of the millimeter wave FPC antenna in a complex environment are achieved, and the problem that a traditional antenna is unstable in performance in disturbance and frequency change scenes is effectively solved.

The utility model relates to the technical field of millimeter wave antennas, and discloses a communication device and a millimeter wave antenna, comprising a substrate, the upper surface of the substrate is provided with a PCB, the upper surface of the PCB is provided with a radio frequency chip, the upper surface of the radio frequency chip is provided with a plurality of groups of first bonding alloy wires and a plurality of groups of second bonding alloy wires, two groups of antenna grounds are arranged at two ends of the upper surface of the PCB; one end of the first gold bonding wire can be conveniently moved through the adjusting part, so that the gap between the first gold bonding wire and the PCB is adjusted, the gap between the first gold bonding wire and the PCB is prevented from being too large, the consistency and reliability of signals in a vibration or impact environment are improved, the protection effect on the antenna is improved, and the service life of the antenna is prolonged. And the heat generated by the radio frequency chip is led out under the action of the heat conducting plate, so that the heat is dissipated through the plurality of groups of heat dissipation blades, thereby improving the heat dissipation effect on the communication equipment and prolonging the service life of the equipment.

The embodiment of the invention relates to the technical field of millimeter wave antennas, and discloses a millimeter wave antenna and a radar system.The millimeter wave antenna comprises a waveguide structure, a metallization layer, an isolation structure and a welding structure, and the waveguide structure comprises a first waveguide assembly and a second waveguide assembly; the first waveguide assembly and the second waveguide assembly are oppositely arranged to form a combination surface, the combination surface is provided with a functional area and a welding area, the functional area forms a millimeter wave transmission channel, the metalized layer covers the waveguide structure, the isolation structure is arranged between the welding area and the functional area, and the metalized layer covers the isolation structure. The isolation structure is used for preventing the soldering tin from diffusing from the soldering area to the functional area, in this way, effective separation of the soldering function and the waveguide performance function can be achieved, the isolation structure can effectively prevent the soldering tin from diffusing to the functional area, and it is ensured that the geometric dimension and the internal state of the millimeter wave transmission channel are kept stable; and the consistency of the electromagnetic performance of the antenna core is maintained.

The application discloses a low-profile wave beam regulation millimeter wave antenna loaded with Huygens super surface, which comprises a non-biased substrate integrated waveguide slot array antenna and a near-field Huygens super surface; the non-biased substrate integrated waveguide slot array antenna is composed of a first dielectric substrate, metal structures printed on the top and bottom of the first dielectric substrate, a slot array etched on the metal structures and metal through holes in the first dielectric substrate; the near-field Huygens super surface comprises a second dielectric substrate and metal structures on the top and bottom of the second dielectric substrate; the non-biased substrate integrated waveguide slot array antenna serves as an excitation source to provide a spherical wave, and the near-field Huygens super surface is used for precisely regulating the phase distribution above the slot array antenna. The application has the characteristics of low profile and can realize two-dimensional wave beam regulation based on different super surface distributions.

A high-gain millimeter wave antenna structure and a millimeter wave antenna module. The high-gain millimeter wave antenna structure includes a first reflective plate, a second reflective plate and a millimeter wave antenna module disposed between the first and the second reflective plates. When the millimeter wave antenna module is configured to provide an original millimeter wave signal, the original millimeter wave signal provided by the millimeter wave antenna module is reflected by the first and the second reflective plates in sequence to form an operating millimeter wave signal transmitted in a same predetermined direction. Therefore, an operating antenna gain of the operating millimeter wave signal provided by the cooperation of the millimeter wave antenna module, the first reflective plate and the second reflective plate is greater than an original antenna gain of the original millimeter wave signal provided by the millimeter wave antenna module.

The utility model provides a high-frequency millimeter wave digital isolator which comprises an emitter, a receiver and an integrated isolation device, the integrated isolation device comprises a first millimeter wave antenna and a second millimeter wave antenna, and the first millimeter wave antenna and the second millimeter wave antenna are arranged on the same horizontal plane. An isolation belt is arranged between the first millimeter wave antenna and the second millimeter wave antenna, the first millimeter wave antenna is connected with the transmitter, the second millimeter wave antenna is connected with the receiver, signals are transmitted between the transmitter and the receiver through an integrated isolation device, and the receiver comprises a second matching network, an envelope detector and an output buffer. And the second millimeter wave antenna, the second matching network, the envelope detector and the output buffer are connected in sequence. And the receiver adopts the design of replacing the existing amplifier and demodulator with an envelope detector, so that the power consumption is effectively reduced. The two millimeter wave antennas are arranged in parallel on the same horizontal plane, so that the risk of open circuit caused by collapse can be effectively avoided. And the isolation efficiency and the transmission efficiency are maintained.

This invention provides a millimeter-wave antenna and a mobile terminal. The millimeter-wave antenna sequentially includes a first metal layer, a dielectric substrate, and a second metal layer. The dielectric substrate includes a first surface and a second surface. The first surface is covered by the first metal layer, and a slot structure is formed in the first metal layer. The second surface is covered by the second metal layer, and a first feed port and a second feed port are formed in the second metal layer, spaced apart. A plurality of spaced metal vias are provided at the edge of the slot structure, and the metal vias are longitudinally connected to the first metal layer and the second metal layer. The millimeter-wave antenna of this invention can achieve dual-polarized radiation with a single antenna, reducing the number of antennas required and lowering production costs.

A head-mounted device may have a head-mounted housing that is configured to be worn on a head of a user. While the head-mounted device is being worn, left and right displays in optical modules in the head-mounted device may provide images to eye boxes located rearward of the head-mounted device. A forward-facing publicly viewable display on a front portion of the head-mounted device may be covered with a transparent housing portion forming a display cover layer. Millimeter wave antennas may be mounted under a dielectric member that is interposed between the antennas and an edge portion of the transparent housing portion. The antennas may have planar outer surfaces. The dielectric member may have a planar surface separated from the planar outer surfaces by air gaps and a curved outer surface.

Aspects described herein include millimeter wave integrated hinges. In one aspect, wireless communication apparatus includes a bracket, a first pivot structure attached to the bracket configured to pivot the bracket around a first line, and a second pivot structure attached to the bracket and configured to pivot the bracket around a second line, wherein the second line is parallel to the first line. A millimeter wave antenna array is mounted to the bracket such that the mmW antenna array is positioned between the first line and the second line.

This disclosure discloses a millimeter-wave antenna device and a millimeter-wave antenna base station, belonging to the field of antenna technology. The millimeter-wave antenna device includes a transmitting module, a receiving module, an radome with wave transmission characteristics, and a base with electromagnetic wave shielding characteristics. The radome is fixedly connected to the base to form a cavity, and the transceiver modules are located inside the cavity and spaced apart on the base. An absorbing material layer is provided on the side of the radome facing the base, and the projection of the absorbing material layer onto the base lies between the transceiver modules. The absorbing material layer comprises the following components in parts by weight: 10-60 parts thermoplastic resin, 40-85 parts absorbing powder, and 2-15 parts toughening agent, wherein the absorbing powder includes carbonyl iron powder, and the particle size D50 of the carbonyl iron powder is 1μm-6μm. The absorbing material layer has strong normal and wide-angle absorption efficacy for millimeter waves in the 24.25GHz-29.5GHz frequency band, effectively reducing millimeter wave reflection interference from the base and improving signal isolation between the transceiver modules.

A molded article for communication equipment incorporating a microwave and / or millimeter-wave antenna, obtained using a thermoplastic resin composition. The thermoplastic resin composition contains a polycyanurate comprising repeating units represented by the following formula (1). TIFF2026062627000077.tif35140(Y 1 Z is a divalent organic group. 1 (This includes hydrogen atoms, substituted or unsubstituted linear or branched alkyl groups having 1 to 20 carbon atoms, substituted or unsubstituted cycloalkyl groups having 5 to 20 carbon atoms, substituted or unsubstituted aryl groups having 6 to 20 carbon atoms, substituted or unsubstituted aralkyl groups, substituted or unsubstituted amino groups, substituted or unsubstituted linear or branched alkoxy groups having 1 to 20 carbon atoms, or substituted or unsubstituted aryloxy groups having 6 to 20 carbon atoms.)

There is disclosed a combined microwave and mmWave antenna comprising a conductive ground plane with an L-shaped cutout portion, a first radiating element disposed in the L- shaped cutout portion and spaced from edges of the conductive ground plane by a dielectric gap, and a second radiating element disposed in a plane spaced from a plane of the conductive ground plane and the first radiating element, wherein the second radiating element overlaps the first radiating element, and wherein one of the first and second radiating elements is configured for microwave operation and wherein the other of the first and second radiating elements is configured for mmWave operation.

A millimeter wave antenna assembly includes a rear cover; a preset antenna group, provided on a side below the rear cover; a millimeter wave antenna group, provided below the rear cover and adjacent to the preset antenna group, wherein the millimeter wave antenna group and the preset antenna group are spaced apart by a preset distance; a main board, in which the preset antenna group and the millimeter wave antenna group are electrically connected to the main board; and a frame, circumferentially provided around the main board, wherein the rear cover engages with the frame.

The application discloses a kind of millimeter wave MIMO antennas based on current cancellation model E / H plane decoupling, including metal floor, dielectric substrate, microstrip antenna unit, drainage metal branch, parasitic metal branch and coaxial feed port group composition.Metal floor is printed in the lower surface of dielectric substrate;Multiple microstrip antenna units are printed on the upper surface of dielectric substrate, and are connected with multiple coaxial feed ports respectively;E-plane microstrip antenna unit is respectively loaded with drainage metal branch to realize E-plane decoupling;H-plane microstrip antenna unit is respectively loaded with parasitic metal branch to realize H-plane decoupling.The application can realize MIMO antenna E / H plane simultaneous decoupling, and structure is simple and easy to process, can be applied to millimeter wave MIMO antenna system needing high isolation, and asymmetric millimeter wave MIMO antenna array.

The invention discloses a microwave and millimeter wave large-frequency-ratio dual-band common-structure antenna, a millimeter wave antenna and a microwave antenna are combined through a radiator structure multiplexing method, and an external material is metal. The millimeter wave antenna is in an array antenna form of a pure metal structure and comprises sub-radiation structures symmetrically distributed in the metal and a feed structure of the sub-radiation structures. The millimeter wave feed structure is provided with one input port and output ports with the same number as that of the radiation array elements, and equal-amplitude and equal-phase excitation is provided for all the radiation array elements. The microwave antenna is composed of a microwave radiation structure located in the middle of the millimeter wave array and a feed structure connected from the metal side face. The microwave feed structure avoids the millimeter wave array antenna, and mutual influence is avoided. According to the invention, while complex antenna structures of different frequency bands are integrated, good isolation is realized, the antenna has the advantages of large frequency ratio, wide working frequency band, high radiation efficiency and the like, the isolation between the two working frequency bands is good, and the antenna is a good antenna alternative scheme for a future communication system.

This application discloses a wireless monitoring device and a childcare device. The wireless monitoring device is positioned above a platform supporting a newborn in the childcare device to monitor the newborn's vital signs. The wireless monitoring device includes a processing module and an antenna module. The antenna module includes a substrate, a millimeter-wave antenna, and at least two metal walls. A first metal wall and a second metal wall are positioned along a first direction on opposite sides of the millimeter-wave antenna. The first metal wall forms a first preset angle with the substrate, and the second metal wall forms a second preset angle with the substrate. This ensures that when the wireless monitoring device is placed at a first height, and the transmitted signal from the antenna module attenuates to a preset attenuation level, the coverage area of ​​the transmitted signal on the plane where the platform is located includes a preset area on the plane. This enables accurate monitoring of vital signs wirelessly.

The utility model discloses a millimeter wave antenna coupling slot structure with wide impedance bandwidth, which comprises a coupling slot arranged on the surface of a radiation patch, telescopic pieces used for changing the effective area of the coupling slot are arranged on the inner walls of the two sides of the coupling slot, and an antenna base is connected below the radiation patch through an adjustable assembly. Through the arrangement of the adjustable assembly and the telescopic pieces, the adjustable assembly can flexibly adjust the height of the radiation patch, so that the performance parameters of the antenna can be optimized, different working environments and application requirements can be met, meanwhile, the effective area of the coupling gap can be changed through the coupling gap and the telescopic pieces on the inner walls of the two sides, and the antenna is more compact. Therefore, the impedance matching and radiation characteristics of the antenna are adjusted, and the working efficiency and bandwidth of the antenna are improved.

The invention discloses a millimeter wave antenna, and relates to the technical field of wireless communication equipment. The antenna comprises a waveguide structure, the waveguide structure is provided with a waveguide cavity, a first feed port and a second feed port, the first feed port and the second feed port are respectively arranged at a first end and a second end which are opposite to each other of the waveguide cavity, and the waveguide structure is provided with at least two groups of radiation units which are sequentially arranged at intervals. Each radiation unit comprises a first radiation opening and a second radiation opening which are communicated with the waveguide cavity, the center of the first radiation opening and the center of the second radiation opening are arranged at intervals in the length direction of the waveguide cavity and the width direction of the waveguide cavity, in a first state, electromagnetic waves are fed into the first feed port, and in a second state, electromagnetic waves are fed into the second feed port; the phase difference between the first radiation opening and the second radiation opening is 90 degrees; in the second state, electromagnetic waves are fed into the second feed port, and the phase difference between the second radiation opening and the first radiation opening is 90 degrees. According to the scheme, the problem of large dielectric loss of the existing millimeter wave antenna can be solved.

This invention relates to the field of millimeter-wave radar and discloses a millimeter-wave antenna. The millimeter-wave antenna of this invention includes a feed line and multiple antenna elements connected to the feed line. The multiple antenna elements include a feed-end antenna element and a terminal antenna element connected to the feed line's feed end and end, as well as one or more trapezoidal antenna elements. The millimeter-wave antenna of this invention has a wide antenna bandwidth; the antenna linear arrays can be very close together, which is beneficial for selecting smaller element spacing during antenna linear array layout design. Furthermore, when forming a planar array, reducing the spacing between adjacent antenna linear arrays can reduce the lateral dimension of the antenna planar array.

This invention relates to the field of adaptive antenna control technology, specifically disclosing an adaptive control system for a wide-angle scanning millimeter-wave antenna on a UAV. The system includes a multi-source heterogeneous sensing module for collecting platform attitude data, airflow disturbance data, environmental attenuation data, and three-dimensional dynamic deformation data of the flexible array. Data fusion is performed through a filtering unit to output four-dimensional sensing results. The technical solution of this invention can effectively improve the bottleneck of communication link lockout in actual flight operations such as UAVs encountering complex airflow or severe maneuvers. When the flexible antenna array is about to deform or is undergoing deformation due to physical environmental influences, the system no longer passively waits for signal attenuation. Instead, it deeply integrates multi-dimensional environmental and flight maneuver commands to predict the deformation trend in advance and directly triggers a resource scheduling mechanism at the underlying level, rapidly allocating core computing power to ensure extremely low-latency computational output.

The utility model discloses an EBG structure and a millimeter wave antenna structure, the EBG structure comprises a substrate, and a metal patch, a grounding plate and a metal conduction structure which are respectively arranged on the substrate, the metal patch is arranged above the grounding plate, the metal patch and the grounding plate are conducted through the metal conduction structure, and the metal conduction structure is arranged on the substrate. The metal patch is provided with a plurality of arc-shaped grooves which are uniformly distributed around the central axis of the metal conduction structure. The EBG structure is novel in structure, a plurality of arc-shaped grooves which are uniformly distributed around the central axis of the metal conduction structure are designed on the metal patch, the propagation path and distribution of electromagnetic waves on the metal patch are optimized through the design of the arc-shaped grooves, the blocking effect on the electromagnetic waves is enhanced, the isolation effect of the EBG structure is improved on the premise that the size of the EBG structure is not increased, and the service life of the EBG structure is prolonged. The millimeter-wave antenna has the advantages that the millimeter-wave antenna has more advantages in application in a millimeter-wave antenna structure, the anti-interference capability of the antenna is remarkably enhanced, the stability and reliability of the antenna in a working frequency band are ensured, and the requirements of a modern communication system for high isolation and anti-interference performance of the antenna are met.

The invention belongs to the field of high-frequency communication materials, and particularly discloses a Low-alpha ray spherical alumina / liquid crystal polymer 5G base station substrate material, which is characterized by comprising a liquid crystal copolymer matrix and a Ce < 3 + > doped spherical alumina filler, the liquid crystal copolymer matrix is prepared from three comonomers, namely 60 to 68 mol percent of p-hydroxybenzoic acid, 20 to 24 mol percent of 5, 5 '-dithiobis (2-nitrobenzoic acid) and 12 to 16 mol percent of 4-(5-amino-6-hydroxy-2-benzoxazole)-benzoic acid; the surface of the Ce < 3 + >-doped spherical alumina filler is sequentially coated with a Bi2Te3-xSex topological insulating layer and a phosphate silane grafting layer, wherein x is equal to 0.12-0.18. According to the Low-alpha ray spherical aluminum oxide / liquid crystal polymer 5G base station substrate material, the alpha ray shielding rate is larger than or equal to 99.95%, the heat conductivity is larger than or equal to 3.35 W / mK, the dielectric loss factor tan delta is smaller than 0.00014 under 28 GHz, and the strict requirements for high frequency, high reliability and the like of a substrate in 5G millimeter wave antenna application can be met.

The embodiment of the application discloses an antenna module and an electronic device, relates to the technical field of antennas, and improves the isolation between antenna pairs. The specific scheme is that a plurality of magnetic resonance structures are arranged at intervals in the magnetic field direction of the same-frequency antenna pair. A plurality of electric resonance structures are arranged at intervals in the electric field direction of the antenna pair. The magnetic resonance structure comprises a conductive sheet electrically connected with a ground layer, and the electric resonance structure comprises a resonance ring and a wire electrically isolated from the ground layer. The magnetic resonance structure and the electric resonance structure are beneficial to improving the antenna gain and have weak influence on the radiation efficiency. In addition, while ensuring better communication quality of the antenna pair, the volume of the antenna pair is reduced, so that the millimeter wave antenna is miniaturized.

A method including: equipping each antenna element in a mmWave antenna with 2 -bit phase shift registers; for each antenna element, cycling through predetermined phase shifts to receive signals associated with each of the predetermined phase shifts; processing RSS values of the received signals to determine a relative gain of the nth element in comparison to the 1st element; and repeating the above process for other elements, to determine a relative gain of each element with respect to the 1st element.

An antenna array may include a plurality of printed circuit boards (PCBs) oriented in a stacked arrangement, parallel to and spaced apart from one another. Each of the PCBs may include a linear array of antenna elements, which cooperate with the linear arrays of antenna elements on other PCBs to form a two-dimensional array of antenna elements. The PCBs may be supported at one end by a common backplate in a cantilevered manner, with the linear arrays of antenna elements located near the free end of the PCBs. The PCBs may include a thicker portion and a thinner portion, and the thinner portion may include a heat sink or other thermal dissipation structure.

The invention specifically relates to a rapid three-dimensional near-field imaging method based on a millimeter wave MIMO antenna array system, and the method comprises the steps: selecting a scene center as a reference point in a first stage, and carrying out the conversion from multiple stations to a single station; then, a coarse imaging result of the whole scene is generated by applying 3D-RMA; in the second stage, the imaging scene is divided into blocks, and fine imaging results of all target positions are obtained by applying a 2D-RMA slicing algorithm with fast calculation for several times. The invention aims to solve the problems that the storage burden of high-dimensional data is reduced, the imaging quality is ensured, the calculation complexity is greatly reduced, the approximate error of a reference point is eliminated, the problem of near-field defocusing caused by far-field hypothesis failure is solved, and the near-field three-dimensional real-time focusing imaging is realized.

The invention discloses a photo-generated millimeter wave communication sensing MIMO signal system based on radio over fiber transmission. A concentration unit combines wavelength division multiplexing signals through an optical fiber forward link and transmits the combined signals to a far-end radio frequency unit; the communication sensing target user is used for receiving a low-frequency radio frequency communication signal, recovering communication data through index modulation MIMO demodulation, and reflecting a millimeter wave sensing signal to form an echo; the sensing receiving module performs down-conversion on the echoes and mixes the echoes with a local sensing source; and in the far-end radio frequency unit, the wavelength division demultiplexer separates the received multi-path optical signals and inputs the separated signals to the photoelectric detectors, and the electric signals at the output ends of the photoelectric detectors are respectively connected with the radio frequency antenna and the millimeter wave antenna after being subjected to filtering processing. According to the invention, high-performance and low-cost heterogeneous signal fusion and parallel transmission are realized by using a centralized wireless access network framework, and a low-complexity centralized communication sensing integrated scheme is realized based on a far-end radio frequency unit forward-transmission system without DSP (Digital Signal Processor).