4696results about "Antenna arrays" patented technology

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

The invention relates to the technical field of phased-array antennas, in particular to a beam forming optimization system based on a millimeter wave phased-array antenna, which comprises an antenna array module which can be arranged in a regular two-dimensional array and comprises a plurality of antenna units, each antenna unit can independently adjust the phase of a transmitted or received signal so as to realize accurate control of the beam direction; the phase regulation and control module can change the signal interference condition; a beam forming and optimizing module based on millimeter waves; an interference suppression and signal processing module; a control and monitoring module; according to the invention, the antenna array module, the phase regulation and control module, the beam forming and optimizing module, the interference suppression and signal processing module and the control and monitoring module are matched; the purposes of accurately controlling the beam direction and shape, reducing interference of surrounding non-target objects and improving the data transmission precision when the phased-array antenna beam is formed by adopting millimeter waves are achieved.

The invention provides a satellite tracking method and device for a mechanical-electrical integration small planar phased-array antenna, and belongs to the technical field of satellite communication. The method comprises the following steps: starting and electrifying the small planar phased-array antenna and adjusting the small planar phased-array antenna into a preparation attitude; using the central array element to complete satellite searching to obtain ephemeris information; in the satellite and satellite top-crossing tracking stage, the expected beam direction is calculated, the beam direction is controlled in a beam forming and mechanical angle compensation combined mode, and satellite and satellite tracking operation is achieved; and the antenna receives the satellite switching instruction and adjusts the satellite switching instruction to a preparation attitude, and the next round of satellite tracking operation is carried out. According to the invention, mechanical angle compensation is carried out on the wave beam by adjusting the orientation of the antenna array surface, the satellite alignment and tracking performance of the antenna in a low satellite elevation scene is improved, and the consistency of terminal communication performance in the satellite top-crossing process is ensured.

The invention relates to the technical field of electronic information, in particular to a multi-band cooperative interference gallium nitride phased-array antenna control method and system. The method comprises the steps of extracting key parameters of electromagnetic signals, and generating a cooperative interference strategy combination; mapping the frequency band optimization weight to a dynamic working mode of the gallium nitride power amplifier unit, adjusting the radiation pattern characteristics of the reconfigurable dipole array according to the power distribution parameters, and constructing a composite beam forming framework; phase weighting and spatial multiplexing are carried out on the interference signals of all the frequency bands based on the composite beam forming architecture, and a multi-beam interference cluster is generated; thermodynamic state data of the gallium nitride power amplifier module in the multi-beam interference cluster generation process are collected in real time, and heat dissipation parameters of the liquid cooling system are regulated and controlled according to the thermodynamic state data. Intelligent collaboration and accurate pointing of multi-band interference signals are realized, the interference coverage range and the energy utilization rate are improved, and an efficient interference system integrating electromagnetic sensing, multi-beam collaboration and thermal management is formed.

Provided herein are various enhancements for radio frequency antennas and antenna arrangements. In one example, an apparatus comprises a reflector for radio frequency energy having a reflector surface comprising a paraboloid of revolution that establishes an inverted truncated conical shape with a concave nappe. The reflector surface is configured to interact with the radio frequency energy to direct at least a portion of the radio frequency energy towards a feed array mounted about a perimeter of the inverted truncated conical shape.

Backplane architectures for metasurface antennas and methods for driving amplifiers with the same are disclosed. In some embodiments, the metasurface antenna includes: a plurality of radio-frequency radiating antenna elements; a plurality of tuning elements coupled to the plurality of radio-frequency radiating antenna elements, wherein each tuning element of the plurality of tuning elements is associated with one antenna element of the plurality of antenna elements; a plurality of amplifiers coupled to the plurality of radio-frequency radiating antenna elements, wherein each amplifier of the plurality of amplifiers is associated with one antenna element of the plurality of antenna elements; and drive circuitry coupled to the plurality of antenna elements, the plurality of amplifiers and the plurality of tuning elements, configured to drive individually each of the plurality of antenna elements and the plurality of amplifiers.

The invention relates to the technical field of antenna control, in particular to a high-performance antenna array control system which comprises an aging unit judgment module, a unit excitation correction module, a beam sorting regulation and control module, a task scheduling load limiting module and a priority link reconstruction module. According to the method, the aging state of the radio frequency unit is accurately marked, real-time dynamic compensation is implemented according to the amplitude difference and the phase difference between the abnormal unit and the adjacent normal unit, and the low-priority task and the limiting frequency are rejected in combination with the link load limiting standard, so that the execution of the beam task is finely controlled, effective distribution of system resources is guaranteed, and the efficiency of the system is improved. The real-time reconstruction and adjustment of the link priority are carried out, the response speed of the high-priority beam task is accelerated, the dynamic optimization and rapid switching of beam regulation are realized, and the comprehensive improvement of the beam quality, the system resource utilization efficiency and the overall response performance of the array is realized.

Provided are a reconfigurable intelligent surface, a communication method using the reconfigurable intelligent surface, and a transceiver device including the reconfigurable intelligent surface. The reconfigurable intelligent surface may include a plurality of unit cells arranged in a mesh form, a beam steering module electrically connected to the plurality of unit cells, and at least one sensing module electrically connected to the plurality of unit cells, wherein the plurality of unit cells may include a plurality of reflection unit cells configured to reflect at least one signal incident thereon in a direction set by the beam steering module, and a plurality of sensing unit cells configured to obtain phase information of the at least one signal and transmit the phase information to the at least one sensing module.

The invention provides a double-frequency common-caliber base station antenna array which comprises a high-frequency array fixed on a metal reflecting plate and a low-frequency antenna unit located in the middle of the high-frequency array. A low-frequency radiation unit in the low-frequency antenna unit is composed of two groups of mutually crossed low-frequency dipole arms, each low-frequency dipole arm is composed of two quadrilateral or hexagonal metal rings, and the positions of four notches formed in the metal rings are inwards connected with composite decoupling structures respectively; and the low-frequency radiation unit is arranged above the high-frequency array and partially coincides with the projection of the high-frequency array on the reflecting plate. The composite decoupling structure can induce high-frequency induction current on the low-frequency dipole arms to achieve reverse offset in a wide frequency band, interference of the low-frequency radiation unit on high-frequency electromagnetic waves is reduced, a good high-frequency directional diagram shape preserving effect is achieved, the low-frequency dipole arms are printed on the dielectric substrate, the structure is simple, and the antenna is convenient to manufacture. And meanwhile, the current path of the low-frequency radiation unit is prolonged by the composite decoupling structure, and miniaturization is realized.

A horizontally polarized omnidirectional multi-band antenna structure includes a substrate and two structurally-symmetric radiators, each being provided on a layout area on one of the two opposite sides of the substrate, and including a X-shaped primary microstrip line, four secondary microstrip lines, four primary stubs, four secondary stubs and four resonators. The primary microstrip line has four end points arranged with the secondary microstrip lines along different extending directions. The primary stubs extend along different directions from four sections of the primary microstrip line. Each secondary microstrip line is provided with one of the secondary stubs. Resonators are provided between four end points of the primary microstrip line and the primary stubs. The antenna structure supports WiFi 6E / WiFi 7 frequency bands including the 2 GHz, 5 GHz and 6 GHz bands, has characteristics of horizontal polarization and omnidirectionality, and effectively satisfies the needs for miniaturized multi-band and wide band antennas.

The invention discloses a linear polarization in-band scattering reconfigurable radiation time-sharing regulation array antenna, which belongs to the technical field of antenna engineering, and comprises an antenna unit and a one-to-sixteen power divider, the antenna unit is connected with the one-to-sixteen power divider, and the antenna unit is connected with the one-to-sixteen power divider. The antenna unit comprises a first radiation patch, a first dielectric substrate, a second radiation patch, a second dielectric substrate, a feed coupling branch knot, a feed metal column, a third dielectric substrate, a perforated metal floor and a fourth dielectric substrate, and a first PIN tube, a second PIN tube, a feed transmission line, a direct current bias device, a reflective phase shifter and a low-pass filter are arranged at the bottom of the fourth dielectric substrate; the direct-current bias device is connected with the reflection type phase shifter and the feed transmission line through the low-pass filter, and the feed metal column sequentially penetrates through the third dielectric substrate, the perforated metal floor and the fourth dielectric substrate and is connected with the feed transmission line. According to the invention, the normal radiation efficiency of the antenna can be ensured, and the reconfigurability of antenna scattering can be effectively improved.

The present technology describes a widely-spaced antenna radar array for Space Domain Awareness capable of object detection, characterization, imaging and, if unfriendly, threat mitigation. It features (1) very high angular resolution due to the very wide spacing of the sensors, enabling the detection of baseball size objects in GSO, (2) operation at high frequencies enabling characterization of smaller objects because of the ability to mitigate tropospheric effects, (3) operation at varied frequencies enabling threat mitigation and imaging, (4) immediate orbit determination in a single pass without the need for long-arc tracking due to the wide spacing and high precision angle of arrival (AOA) and (5) mitigation of grating lobes caused by the sparse antenna configuration, enabling the sensors to be placed at great distances.

An automotive glazing includes at least a first substrate of glass or polymer, at least one functional layer having electromagnetic properties, a radar unit and one or more antenna units. At least one de-coated region is defined on the at least one functional layer on the glass or polymer substrate. Further, at least a portion of the antenna unit is aligned with de-coated region and the antenna unit is connected to the radar unit.

The invention discloses an X-waveband low-cost wave control system and method based on an FPGA, and belongs to the technical field of phased-array antennae, and the system comprises an FPGA module which is used for receiving and analyzing a control instruction from an upper computer, and executing a processing thread of a corresponding mode according to an analysis result; a FLASH module is mounted outside the FPGA module and used for achieving real-time programming curing and reconfiguration of storage parameters, the FPGA module is connected with a plurality of T / R assemblies in parallel through a plurality of data lines, the T / R assemblies on a single data line are mounted in a daisy chain mode, multi-channel data frames are sequentially sent into a first assembly shifting register in a serial mode, and the first assembly shifting register is connected with a second assembly shifting register in parallel. And the first T / R component serially outputs the data frame and transmits the data frame to the next component, and when the data frame shifts into a register of the corresponding T / R component, the data frame is read by controlling a time sequence.

The present invention discloses a high polarization isolation dual-polarization tightly coupled ultra-wideband phased array antenna. It includes a dipole unit, a coaxial feed line, a metal reflective floor, a fishbone cross-shaped patch and a cross-shaped metal wall; the dipole unit includes a horizontal and two vertical dielectric substrates, and the vertical dielectric substrates are orthogonal to each other; two groups of coplanar and mutually perpendicular butterfly-shaped dipole units are printed on the lower surface of the horizontal dielectric substrate; a fishbone cross-shaped patch is embedded at the intersection of the ends of the dipole units, and there is a gap between the patch and the end of the dipole; a patch with an etched groove line is printed on one side of the vertical dielectric substrate; the patch is connected to the dipole; the microstrip line on the upper surface of the horizontal dielectric substrate is connected to the inner conductor of the coaxial feed line, and the dipole is connected to the outer conductor of the coaxial feed line; the fishbone cross-shaped patch is in contact with the cross-shaped metal wall. The present invention realizes high polarization isolation and low cross-polarization of the dual-polarization tightly coupled ultra-wideband phased array in a lower frequency band without the need for a complex feeding network.

The wireless RF semiconductor system is described for use in wireless communication devices that operate in frequency range from 6 GHz to 100 GHz. The system comprises of at least one RF antenna and at least one active RF component fabricated (or built) on the same semiconductor substrate inside a one single packaged module. The wireless RF semiconductor system is described in a variety of different configurations with its functionality divided up over several single chip circuits. The system simplifies assembly, reduces size and cost, and allows for a quick time to market, while maximizing the RF performance demanded by fixed and mobile 4G, 5G and other wireless standards.

The invention discloses a reciprocity theorem-based array antenna multi-beam pattern synthesis method, which comprises the following steps of: establishing an array antenna model in electromagnetic simulation software, and extracting a radiation pattern of each antenna unit; defining the number and direction of to-be-formed beams and the gain ratio between the beams; establishing an array antenna energy transmission efficiency transfer function, calculating scattering parameters of each antenna unit of the array antenna through a reciprocal theorem and coordinate transformation, and constructing a scattering parameter matrix of a multi-antenna system; automatically adjusting parameters by using a particle swarm algorithm, and dynamically regulating and controlling the gain proportion between the beams; the optimal excitation value of each antenna unit is obtained, and a target beam is generated after actual loading. According to the invention, the multi-beam synthesis result of the array antenna is more convenient, more stable and more flexible.

The present invention proposes a controllably deployable large-area phased array solar wing integrated antenna, which belongs to the technical field of space product structure and mechanism design, and aims to realize the real-time adjustment capability of the phased array antenna on orbit, improve the deployment flatness of the phased array antenna, reduce the locking impact, and integrate the phased array antenna with the solar wing. The integrated antenna includes a plurality of deployment plate assemblies, a high-precision damping hinge mechanism, a locking device, a timing control expander and a deployment position detection system; each deployment plate assembly is connected by a high-precision damping hinge mechanism; the timing control expander is used to control the deployment timing between each deployment plate, and is also used to press adjacent deployment plates and control the locking device to complete the locking between each deployment plate; the deployment position detection system is used to detect the positional relationship between adjacent deployment plates, and control the high-precision damping hinge mechanism according to feedback data until it reaches a predetermined position. Suitable for large-area deployment mechanisms of phased array antennas.

The invention relates to the technical field of phased-array antennas, in particular to a common-caliber simultaneous multifunctional phased-array antenna wave control system, which uses a common-caliber antenna array, comprises N phased-array antennas and N TR components, and realizes caliber sharing through staggered layout. And a wave control system is used for calculating a wave beam control command by utilizing embedded software, controlling phase shift and attenuation of the TR component and processing internal and external interface communication. The feed network is used for signal distribution, and uniform distribution and transmission efficiency are ensured. A Beidou system is used for providing time synchronization and positioning information, and accurate beam control of the beam control system in a complex electromagnetic environment is guaranteed. A channel is used for receiving antenna array signals, control signals are sent to the TR assembly, and accurate transmission of the signals is ensured. According to the invention, the problem that the existing wave control system cannot perform multi-beam control on the common-caliber multifunctional phased-array antenna at the same time is solved, and the target of multi-beam control in the single shared antenna caliber is realized.

The invention discloses a large-scale phased array multi-channel partition beam control method and device based on an FPGA and a storage medium. The method comprises the steps that a control instruction of an antenna control unit is acquired; analyzing the control instruction which is verified to be correct, judging an instruction type according to an analysis result, when the instruction type is a beam switching instruction, determining a beam control parameter in the instruction, and calculating a base code of the phased-array antenna according to the beam control parameter; the array elements of the phased-array antenna are divided into a plurality of areas, according to the base codes and the position coordinates of the array elements, the wave control codes of the array elements are calculated in parallel by adopting a multi-channel partitioning method, and the wave control codes are normalized and then written into a beam forming chip in parallel; and after the operation is completed, a corresponding response instruction is sent to the antenna control unit. The method has the advantages of being high in beam switching speed, small in resource consumption and good in universality, an array can form a sparse array in the mode of sending a control instruction, and therefore side lobes are restrained, and power consumption is reduced.

The invention discloses a broadband scattering beam reconfigurable low RCS planar array antenna. The antenna array structurally comprises a metal radiation oscillator structure, a dielectric substrate, an offset line structure, a rectangular metal floor, a pin header, a slotted metal aluminum plate and a feed structure from top to bottom, the pin header penetrates through the dielectric substrate; the metal radiation array structure realizes phase regulation of the antenna unit on reflected electromagnetic waves and regulates the beam direction of scattered electromagnetic waves; the antenna array is composed of N * N antenna units, and N is greater than or equal to 2 and is a positive integer. According to the invention, broadband scattering phase reconstruction is realized, and the wide radiation characteristic of the antenna is realized by using the tight coupling design.

The utility model relates to an antenna unit, an antenna array, an antenna device and a base station system.The antenna unit comprises an insulating base material plate, a feed network, a metal ground layer, a reflecting plate, an insulating base material arm, a radiation arm and a feed balun, the feed network is connected to the insulating base material plate, the metal ground layer is connected to the insulating base material plate, and the metal ground layer and the feed network are located on the same side of the insulating base material plate; at least part of the reflecting plate is arranged on the side, away from the insulating base material plate, of the metal ground layer, the reflecting plate is in coupling connection with the metal ground layer and the feed network, the insulating base material arm is connected to the insulating base material plate and located on the side, away from the feed network and the metal ground layer, of the insulating base material plate, and the radiation arm is arranged on the insulating base material arm. The feed balun is arranged on the insulating base material arm, one end of the feed balun is electrically connected with the feed network, the other end of the feed balun is electrically connected with the radiation arm, and the feed balun is used for feeding the radiation arm. According to the antenna unit, the dielectric loss of the feed network can be reduced, the coupling between the feed network and the radiation arm is reduced, and the radiation performance and isolation of the antenna unit are improved.

The invention provides a phase shifting device. The device comprises a first phase shift module, a second phase shift module and M combiners, M is an integer greater than 1, an input interface of the first phase shift module is used for receiving a carrier component of a first signal, and one of M output interfaces of the first phase shift module is connected with a first input interface of one of the M combiners; the input interface of the second phase shifting module is used for receiving a sideband component of the first signal, and one of the M output interfaces of the second phase shifting module is connected with the second input interface of one of the M combiners; the output interface of one of the M combiners is used for being connected with the input interface of one of the M antenna units in the antenna array. Compared with a traditional phase shifting device, the phase shifting device provided by the invention can improve the dispersion efficiency in a magnitude manner, and realizes small size or single-chip integration.

The invention discloses a high-gain wide-beam telemetering ground receiving antenna based on a multi-array-element structure, which comprises an antenna array, a metal floor and an array base, and is characterized in that the antenna array adopts the multi-array-element structure and comprises eight antenna units; each antenna unit comprises a parasitic layer, a micro-strip antenna layer, a feed network layer and a metal cylindrical cavity structure, the parasitic layer, the micro-strip antenna layer, the feed network layer and the metal cylindrical cavity structure are sequentially supported, assembled and connected by medium supporting columns from top to bottom, and the feed network layer adopts a branch line directional coupler in a micro-strip form. According to the high-gain wide-beam telemetering ground receiving antenna based on the multi-array-element structure, the bandwidth of the microstrip antenna is widened in a parasitic structure mode, and the impedance bandwidth of the antenna is widened by adjusting the parasitic size and height; a metal cylindrical cavity is reinforced on the bottom layer of the microstrip network so as to enhance the gain and the axial ratio of the microstrip.

The embodiment of the invention provides electronic equipment. The electronic equipment comprises a middle frame, a display screen, a back cover and a reinforcing body. The middle frame comprises at least one side frame. The frame includes a first radiator and a second radiator. The adjacent end parts of the first radiator and the second radiator are arranged at intervals to form an antenna gap. The first radiator comprises a first conductive support leg, and the second radiator comprises a second conductive support leg. The display screen and the back cover are arranged on the two opposite sides of the middle frame in the thickness direction of the middle frame. The reinforcing body is located between the display screen and the back cover. The first conductive supporting foot and the second conductive supporting foot are arranged at intervals with the reinforcing body, and the reinforcing body is arranged opposite to the antenna slot. At least one of the first conductive supporting foot and the second conductive supporting foot is located on the side, back to the display screen, of the reinforcing body in the thickness direction of the middle frame.

The invention discloses an extensible silicon-based terahertz radiation array source based on an on-chip micro-convex antenna and a terahertz radiation source. The extensible silicon-based terahertz radiation array source based on the on-chip micro-convex antenna comprises a plurality of array units formed by cross-coupled harmonic oscillators based on the on-chip micro-convex antenna, and the array units are connected to form the extensible silicon-based terahertz radiation array source of an n * n array structure. According to the extensible silicon-based terahertz radiation array source, the on-chip micro-convex antenna radiation structure meets the terahertz frequency and broadband requirements, the extensible silicon-based terahertz radiation array source can be applied to a terahertz radiation source system, and the terahertz radiation source array system which is high in working frequency, high in radiation power and tunable in broadband can be achieved.

An antenna is provided. The antenna includes a feed line structure; a first low dielectric constant layer on the feed line structure; a first flexible layer on a side of the first low dielectric constant layer away from the feed line structure; a phase shifter on a side of the first flexible layer away from the first low dielectric constant layer; a first ground plate on a side of the phase shifter away from the first flexible layer; and a radiating plate on a side of the first ground plate away from the phase shifter. The first low dielectric constant layer has a dielectric constant in a range of 1.5 to 3. The first flexible layer has a Flexural modulus in a range of 0.01 to 10.0.

The invention relates to the technical field of active phased-array antennas, in particular to an active phased-array antenna device with a built-in calibration network and a calibration method, and the method comprises the steps: carrying out the initialization configuration of a phased-array antenna, and setting the working state of the phased-array antenna; according to the set working state, the main control unit is used for judging whether re-calibration is needed or not; if it is judged that re-calibration is needed, the main control unit sends out a calibration instruction to start a calibration program, the amplitude and phase control unit is controlled through the calibration program to conduct calibration, and a corresponding two-dimensional standard table is generated and stored in a database storage unit; if it is judged that re-calibration is not needed, an existing two-dimensional standard table is obtained from a database storage unit; the current working frequency is obtained, and the attenuator value and the phase shifter value of each channel are configured according to the obtained two-dimensional calibration table, so that each channel of the phased-array antenna is calibrated, and the self calibration of the amplitude and the phase of the active phased-array antenna can be carried out at any time in the whole service life period.

The invention provides a full-airspace multi-beam phased-array antenna, and the phased-array antenna comprises a structural frame which is provided with a plurality of antenna array plane installation frames and is internally provided with a cavity; the plurality of antenna array surfaces are respectively and obliquely arranged on the antenna array surface mounting frame body; a radio frequency assembly unit which is vertically interconnected with the antenna array plane; the control unit, the switch matrix, the receiver and the power supply module are all located in the cavity, and the control unit is in communication connection with the radio frequency assembly unit; the switch matrix is connected with the radio frequency assembly unit and the baseband; the receiver is connected with the switch matrix and is in communication connection with the control unit; the power module is connected with the control unit. By adopting the array plane inclined layout, tracking of multiple targets in the same frequency band or tracking of multiple targets in different frequency bands is achieved, then the wave beam scanning and tracking range of 0-360 degrees in the azimuth and 2-90 degrees in the pitching direction is achieved, the modular design is adopted, and the technical effects of being convenient to install and operate are achieved.

A metasurface array comprises a plurality of electronic control metasurface units, and each electronic control metasurface unit comprises a patch layer, a first dielectric substrate layer, a floor layer, a bonding layer, a second dielectric substrate layer and a bias line layer from top to bottom; the patch layer comprises four square double-ring metal patch structures and a dipole arm structure provided with a pin diode, a central metal through hole penetrating downwards to be connected with the offset line layer is formed in the crossed position, and corresponding to the diameter of the central metal through hole, only the diameter of an opening in the floor layer is large, and the other layers are the same; a peripheral metal blind hole penetrating through the first dielectric substrate layer is downwards formed in the central point of each square double-ring metal patch structure; the bias line layer is of a fan-shaped branch knot structure; under the cooperation of the feed source antenna, the electric control metasurface unit realizes the on-off of a pin diode through phase distribution coding under the control of the direct current control circuit board and the ARDUINO microprocessor, and realizes beam scanning in a specified direction. The antenna is wide in frequency band and low in cost.