27 results about "Active array" patented technology

The invention discloses a W-band two-dimensional DBF microsystem based on an AiP technology, and belongs to the technical field of packaging antennas, the W-band two-dimensional DBF microsystem comprises an active array antenna module for realizing transceiving and frequency conversion of W-band signals, the active array antenna module is provided with a plurality of antenna units, and each antenna unit corresponds to a signal processing channel; the radio frequency direct acquisition transceiver module is used for multi-channel parallel sampling and transmitting and completing conversion between an analog radio frequency signal and a digital baseband signal; the digital beam former module is used for carrying out weighting, phase correction and delay control on each channel signal output by the radio frequency direct acquisition transceiver module so as to realize two-dimensional digital beam forming; and the active array antenna module, the radio frequency direct acquisition transceiver module and the digital beam former module are independently integrated on the integrated module to realize integral packaging. According to the invention, deep fusion of the AiP module and the DBF module is realized under the W-band condition.

Content-addressable memory-in-display (CAMiD) electronic displays and circuitry are provided. An electronic display may include a pixel active array and content-addressable control cells to control display pixels of the pixel active array using control signals propagated to the pixel active array on column lines by column driver circuits of the content-addressable control cells.

The invention discloses a single-chip tactile or stress sensing active array and application thereof, and belongs to the field of chip application, the single-chip tactile or stress sensing active array comprises a single chip, the chip is provided with a stress sensing unit, the stress sensing unit is used for sensing stress changes and converting the stress changes into digital signals through an ADC, and the digital signals are output through a digital port of the chip; the circuit connection element has a circuit connection function and is used for realizing circuit connection; a plurality of chips form a chip array which is welded on the first surface of the circuit connecting element. The active array further comprises a reinforcing plate and a flexible covering layer, the reinforcing plate is located on the second face of the circuit connecting element, and the flexible covering layer covers the chip array and is used for sensing a stress field. When a finger touches the flexible covering layer, stress can be generated on the chip, signals are led out through the circuit connecting element and processed to perceive touch sense, each node in the chip array completes signal digitization on the single chip in the node, and signal interference caused by a lead is avoided.

This application provides an active array radar with modular antenna array elements, including a support assembly and an antenna assembly. The support assembly includes a base and a support member mounted on the base, the support member being rotatably connected to the base; the antenna assembly includes a first antenna module and a second antenna module, the first antenna module being located at the end of the support member away from the base, and the second antenna module being located on the support member and below the first antenna in the vertical direction; the second antenna module includes a first scanning module and a second scanning module disposed opposite to the first scanning module, the ends of the first and second scanning modules away from the support member respectively having a first scanning surface and a second scanning surface, both the first and second scanning surfaces being arranged in a mesh pattern. The array radar provided above reduces the equivalent windward area and the probability of water film formation through the mesh scanning surface, significantly reducing wind load and icing burden, and minimizing aperture deformation in strong wind, rain / salt spray environments.

The application relates to a W-band digital active antenna array, which comprises a millimeter wave subarray plate, a bottom plate and a signal processing unit; the millimeter wave subarray plate comprises a multi-channel patch antenna array and an active circuit, the active circuit comprises a W-band TR chip and an up-down conversion chip; the bottom plate comprises a low-frequency connector, a secondary power supply and corresponding local oscillation and intermediate frequency interfaces; a radio frequency input signal is input through the interface of the bottom plate, is transferred to the millimeter wave subarray plate, is input into the conversion chip to realize up-down conversion, finally is input through the TR chip and the antenna array to realize W-band signal transceiving; the low-frequency interface of the bottom plate is connected with the signal processing unit, and control and power supply signals generated by the signal processing unit are connected to the millimeter wave subarray plate after passing through the bottom plate. The application designs a miniaturized W-band digital active array. Meanwhile, an extensible active subarray design concept is adopted, the combination of millimeter wave subarrays with different numbers is adopted, and the requirement of the number of array channels in different scenes is met.

Content-addressable memory-in-display (CAMiD) electronic displays and circuitry are provided. An electronic display may include a pixel active array and a number of content-addressable control cells. Each control cell controls a respective display pixel of the pixel active array. Each control cell includes a comparator to generate a control signal to control the respective display pixel of the pixel active array based on a comparison between pixel data for the respective display pixel and one or more counters corresponding to a gray level.

The invention relates to the technical field of electromagnetic environment effect testing, and discloses a phased array multifunctional electromagnetic environment effect testing system and a calibration method thereof.The system comprises an active array plane, a comprehensive processing extension set, a comprehensive frequency source extension set, an external feed source combination, a superheterodyne receiver and a digital acquisition extension set; wherein the active array plane is provided with a plurality of minimum sub-arrays, each minimum sub-array is composed of at least one active channel and a corresponding radiation antenna unit, and each minimum sub-array is used for receiving one excitation signal to complete power amplification and radiation synthesis; and the path number of the independent excitation signals generated by the comprehensive frequency source extension set corresponds to the number of the minimum subarrays. The calibration method comprises darkroom plane near-field calibration, external feed source combination calibration and active array plane calibration before working. The system and the method provided by the invention have the advantages of relatively strong accurate construction capability of a complex electromagnetic environment, extremely high test flexibility, multi-beam coordination and high-precision full-link calibration, and stable and reliable operation.

The present application relates to electromagnetic environment effect test technical field, disclose a kind of phased array multifunctional electromagnetic environment effect test system and its calibration method, system includes active array surface and comprehensive processing extension, comprehensive frequency source extension, external feed source combination, superheterodyne receiver and digital acquisition extension;Wherein: active array surface has dry minimum subarray, each minimum subarray is formed by at least one active channel and corresponding radiating antenna unit, each minimum subarray is used to receive one way excitation signal to complete power amplification and radiate synthesis;And the number of independent excitation signal generated by comprehensive frequency source extension corresponds with the number of minimum subarray.The calibration method includes darkroom planar near-field calibration, external feed source combination calibration and active array surface calibration before work.The system and method of the present application have strong accurate construction ability of complex electromagnetic environment, extremely high test flexibility, multi-beam coordination and high-precision full-link calibration, stable and reliable operation.

This application relates to image sensors with dielectric relaxation correction circuitry. Some image sensors include pixels with capacitors. The capacitors can be used to store charge in the imaging pixels prior to readout. The capacitors can be metal-insulator-metal (MIM) capacitors that are susceptible to dielectric relaxation. Dielectric relaxation can cause a lag in the signal on the capacitor, which affects the signal on the capacitor during sampling. The image sensor can include dielectric relaxation correction circuitry that corrects for dielectric relaxation using a linear relationship between voltage stress and lagged signal. The image sensor can include a shield pixel that operates using a similar timing scheme as the imaging pixels in the active array. Measured lagged signals from the shield pixel can be used to correct the imaging data.

The application belongs to the technical field of 6G communication, and particularly relates to a hierarchical codebook design method based on a cascaded channel. The application defines a cascaded channel direction by combining an incident direction and a reflection direction, and one cascaded channel direction may correspond to multiple groups of incident-reflection directions; the cascaded channel direction defined in this way realizes a hierarchical codebook; the hierarchical codebook can be used for beam search in a single-user static scene, and can also be used in an analog beamforming scene of an active array to solve hierarchical codebook design based on a constant modulus constraint; unlike a traditional hierarchical codebook design which needs to know the array size in advance, the hierarchical codebook proposed in the application can be applied to any size of array. The application has more universality and application flexibility, and effectively solves the problem of too long beam search time of an intelligent reflecting surface. The codebook can be used on any size of array, and when the number of arrays increases, the codebook can be directly used without changing the codebook, and the larger the array, the better the performance of the codebook.

The invention discloses a method for realizing dual-polarization phased array weather radar target simulation by using a digital receiver, and relates to the technical field of radar signal processing. According to the method for realizing dual-polarization phased array weather radar target simulation by utilizing the digital receiver, a weather target micro-physical parameter model is established, abundant FPGA resources in the phased array radar digital receiver are combined, and a similar direct digital frequency synthesis (DDS) technology is utilized, so that a high-fidelity digital intermediate frequency echo signal is generated; dynamic target simulation is realized in an active array digital receiver of a phased array radar. Controllable and repeatable simulation of various weather phenomena (rain, snow, hail and the like) can be realized in a laboratory environment. Under the condition of not depending on external hardware, echo characteristics of weather targets (such as rainfall particles), including parameters such as distance, speed, amplitude and dual-polarization parameter quantity, are simulated, and debugging, performance verification and algorithm testing of a radar system are effectively supported.

The application provides a flash memory structure and a flash memory, which comprise a plurality of active array regions and a tip region between adjacent active array regions. In a horizontal direction, a source line layer in the tip region has a U-shaped structure, and an opening of the U-shaped structure faces a word line contact hole. Through the U-shaped structure design, an area where the word line layer is connected to the word line contact hole is away from the source line layer, so that there is a sufficient process window to prevent the word line contact hole from being short-circuited with the source line layer.

Embodiments disclosed herein provide systems and methods for testing and repairing various aspects of an electronic display. The electronic display includes a reference array and an active array. The electronic display also includes test circuitry for testing individual pixels or any combination of pixels of the electronic display. Switches can be disposed between the pixels and the test circuitry to repair various components of the electronic display.

The application discloses a multi-target interference and background simulation device for communication signals, which comprises a power division phase shift network and an active array system; the reconnaissance guiding device is used for detecting and receiving target signals and sending the target signals to a host computer; the host computer controls a signal simulation source to generate multiple communication interference signals and background signals according to parameter information of the target signals; the signal simulation source generates electronic interference signals or background signals, which are processed by a switch gating network and the power division phase shift network, and then are emitted by the active array system; the active array system comprises multiple subarray antennas; each subarray antenna is separately provided with a phased array transmitter and a signal simulation source; the signal simulation source generates electronic interference signals or background signals, which are sent to the subarray antenna by the phased array transmitter; interference signals or background signals are simultaneously constructed for multiple targets; the device can better simulate a complex environment with different intensities and magnitudes of multiple signals, and meets the test requirements of multiple test devices.

The invention relates to a method for elaborating (1) and deploying (2) an improved configuration (Rc) of an active array of sonobuoys in a geographical space divided into a grid of boxes, wherein: • the improved configuration is determined (1) iteratively; and • the improved configuration (Rc) is deployed (2).

The application discloses a kind of MXene-based supercapacitor materials and preparation method thereof, belong to supercapacitor electrode material technical field, by directional growth cobalt-based nanoarray on the surface of porous carbon foam, then utilize polyaniline and polymerize on the surface of MXene powder, again utilize electrostatic self-assembly and form multilayer three-dimensional network composite structure, porous carbon foam is rigid skeleton, cobalt-based nanoarray is active array unit, polyaniline / MXene core-shell nanosheet is functional coating, three synergies play a role, relieve volume expansion effect;The porous carbon foam of the application is as primary buffer unit, accommodate the overall volume expansion of cobalt-based nanoarray, avoid structure collapse, the gap between cobalt-based nanoarray each other, as secondary buffer unit, disperse the expansion stress of cobalt-based particle, MXene interlayer gap can be as tertiary buffer unit, accommodate the volume change caused in polyaniline redox process, simultaneously release stress by interlayer sliding.

Content-addressable memory-in-display (CAMiD) electronic displays and circuitry are provided. An electronic display may include a pixel active array to display an image frame over a series of subframes content-addressable control circuitry. The content-addressable control circuitry may control the pixel active array. The content-addressable control circuitry may include circuitry to perform subframe dithering to generate control signals to control the display pixels of the pixel active array. The control signals may correspond to different gray levels for different subframes of the series of subframes of the image frame to be displayed on the pixel active array.

The invention discloses a multi-beam array based on an active multi-beam forming network and a construction method thereof. The active multi-beam forming network comprises m input ports and n output ports, wherein n is greater than or equal to m; an m * m passive full connection network; n phase shifters; and m or n amplifiers; and each output port is connected with one phase shifter. By constructing a plurality of active array sub-modules comprising the network and synthesizing a plurality of independent and controllable high-gain beams by using a combiner, multi-beam concurrence can be realized and each beam can obtain full-aperture gain on the premise of not obviously increasing the complexity and power consumption of the system. Besides, by controlling the phase shifter in the active multi-beam forming network, amplifier calibration, sub-region beam scanning and focusing and sequential rotation circular polarization feeding can be realized, and the performance and flexibility of the array are remarkably improved. The invention is suitable for 5G / 6G millimeter wave communication systems, satellite communication systems, radar imaging systems and the like.

The invention discloses a three-dimensional omni-directional transmitting device for acoustic vortex signals, which comprises an acoustic phased array circuit, a planar fan-shaped transducer array, a lower-layer gradient lens, a middle-layer synthesis lens and an upper-layer focusing lens, and is characterized in that an active array phase control method and a passive lens phase modulation method are combined, and a cascade lens design is adopted, so that the three-dimensional omni-directional transmitting device for the acoustic vortex signals is realized. Acoustic waves can be gathered at any position in a three-dimensional space, and acoustic vortex signals with controllable topological charges are generated at any position in the radial direction and the angular direction by means of relative rotation of the lower-layer gradient lens and the middle-layer composite lens. And by utilizing the relative rotation of the middle-layer synthesis lens and the upper-layer focusing lens, an acoustic vortex signal with controllable topological charge is further generated at any position in a three-dimensional space. According to the method, the acoustic vortex signal can be generated quickly and conveniently, so that better signal transmission performance can be provided in acoustic vortex engineering, and the method has obvious advantages in the aspects of complex sound field regulation and flexibility.

The application relates to an on-chip light beam synthesis device for a quantum cascade laser and a preparation method thereof. Based on an integrated process of a selective area epitaxy method, a QCL pumping area and a low-loss passive waveguide area are integrated on a chip to realize on-chip light beam synthesis and high-power output of the QCL. According to the scheme of the application, firstly, the reasonable distribution of laser energy is realized by preparing a multi-channel active area array, and the problem of low-power output caused by uneven heat dissipation distribution of the laser is improved; secondly, a distributed feedback grating structure is prepared on the active area array to realize mode selection and single-mode light transmission; thirdly, when the multi-channel QCL active array with the grating and the low-loss passive light beam synthesis waveguide are integrated on the chip through butt coupling, the passive light beam synthesis avoids the problem of uneven heat dissipation caused by carrier absorption, realizes on-chip light beam synthesis and single-aperture high-power output of the QCL, and solves the problem of multi-peak interference of the light beam distribution caused by the array multi-aperture output.

Content-addressable memory-in-display (CAMiD) electronic displays and circuitry are provided. An electronic display may include a pixel active array and content-addressable memory configured to selectively control the pixel active array.

A gaming system and method provide for a wagering game featuring multi-level array expansion and synchronized jackpot display updates. An active array of symbol positions is displayed at an initial size and populated by randomly generated symbols. Upon detecting a first requisite number of special symbols, the active array expands to a second size, a spin counter is reset to a starting value, and an animation displays a first progressive jackpot being replaced by a second progressive jackpot associated with the larger array. The process continues with a second set of symbol generation cycles; if a second requisite number of special symbols is detected, the array further expands to a third size, the spin counter resets again, and an animation displays the second progressive jackpot being replaced by a third progressive jackpot.

The invention provides an active array multichannel calibration method and system based on quadrature phase shift modulation, and relates to the technical field of radar detection, and the method comprises the following steps: placing an active array in a wave-absorbing darkroom or an outdoor open area, and placing a calibration signal source at a position facing the active array and having a vertical distance R with the active array; the calibration signal source transmits a pulse signal according to a fixed pulse repetition frequency; in N pulse periods, an N * N unit orthogonal matrix is adopted to modulate signals of each receiving channel, correlation calculation is carried out on a synthetic signal and conjugate complex codes corresponding to each receiving channel to obtain an amplitude estimation value and a phase estimation value of each receiving channel, and then an amplitude calibration coefficient and a phase calibration coefficient are obtained. The calibration of each channel of the active array is realized, and the problem that the influence of the mutual coupling effect among the channels in the active array of the analog beam forming framework cannot be reflected in a traditional calibration method is solved.

The invention discloses a millimeter wave circularly polarized antenna based on a metal back cavity structure. The millimeter wave circularly polarized antenna comprises a metal shell, a metal patch, a C-shaped metal column, a microstrip transmission line, a ceramic dielectric layer, a metal ground, a coaxial connector and a feed probe, by introducing the all-metal antenna structure, the dielectric loss of the antenna is effectively reduced, and the gain and radiation efficiency of the antenna are improved. Based on the ingenious design of the C-shaped metal columns, a supporting effect is achieved, meanwhile, circular polarization radiation is achieved, the characteristics of miniaturization and easy integration are achieved, and a packaging structure can be achieved. The antenna is packaged based on a vertical interconnection structure of the C-shaped metal column and the coaxial connector, and an aluminum oxide dielectric substrate and a metal back cavity structure are introduced, so that the antenna has good heat dissipation performance, and the stability and reliability of a circuit are improved. The antenna structure provided by the invention is easy to package, has the characteristics of small size and easy integration, has good heat dissipation on the basis of the packaged antenna, and can be widely applied to a satellite-borne active array.

The present disclosure provides a semiconductor structure forming method and a semiconductor structure. The semiconductor structure forming method comprises: providing a substrate, the substrate comprising an active array, the active array comprising a plurality of rows of active regions arranged in staggered intervals, each active region comprising a first end, a second end and a middle part, and the first ends and the second ends of the active regions in the same row are arranged alternately along a first direction; and performing a first etching on the middle part of the active region to form a contact hole in the middle part of the active region. In the present disclosure, the first etching is performed on the middle part of the active region to form the contact hole, thereby avoiding damage to the two ends of the active region caused by etching, ensuring the structural integrity of the two ends of the active region, and improving the yield of the semiconductor structure.

The application provides a kind of active array multichannel calibration method and system based on quadrature phase shift modulation, it is related to radar detection technical field, including the following steps: active array is placed in wave-absorbing darkroom or outdoor open area, a calibration signal source is placed in the position that is directly opposite active array and the vertical distance with active array is set distance R;Calibration signal source emits pulse signal according to fixed pulse repetition frequency;In N pulse periods, the signal of each receiving channel is modulated using N*N element orthogonal matrix, the amplitude estimation value and phase estimation value of each receiving channel are obtained by correlating calculation of the conjugate complex code corresponding to each receiving channel and the synthesized signal, and then the amplitude calibration coefficient and phase calibration coefficient are obtained, the calibration of each channel of active array is realized, and the problem that the mutual coupling effect between each channel in the active array of traditional calibration method cannot be reflected in analog beam forming architecture is solved.

Content-addressable memory-in-display (CAMiD) electronic displays and circuitry are provided. An electronic display may include a pixel active array and content-addressable memory configured to selectively control the pixel active array.