13results about How to "Reduce coupling effect" patented technology

This invention discloses a circularly polarized scanning grating array based on a broadband 90° balun, belonging to the field of microwave antenna technology. The array consists of a grating array of circularly polarized antenna elements. Each circularly polarized antenna element includes, from top to bottom, a radiating patch layer, a first dielectric substrate, an air gap layer, a metal ground layer, a second dielectric substrate, and a feed network layer. This circularly polarized antenna element uses a rotated microstrip patch as the radiator and employs a metal back cavity to achieve stable unidirectional radiation. This structure effectively reduces coupling between elements after antenna array assembly. The lower-layer feed network uses a 180° power divider phase shifter combined with an ultra-wideband phase shifter, which can greatly achieve broadband phase shifting, thereby widening the impedance bandwidth and axial ratio bandwidth of the circularly polarized antenna.

A physiological mechanical signal monitoring system and method utilizing motion state to suppress artifacts, belonging to the field of biomedical signal monitoring and processing technology, aims to improve the existing distributed multi-node vibration and physiological signal acquisition systems, which suffer from severe crosstalk between multiple channels, signal aliasing caused by artifacts, and feature distortion, failing to meet the requirements of high-fidelity, multimodal dynamic acquisition. Key technical points: The signal monitoring system includes a multi-point distributed acquisition module, a motion state recognition module, an artifact detection and adaptive filtering module, and a main control and signal fusion module. The main control and signal fusion module is used to fuse and reconstruct the multi-channel physiological mechanical signals after artifact suppression processing, outputting high-fidelity physiological signals. This invention significantly reduces the coupling effect between different channels caused by environmental vibration, body motion impact, and matrix resonance through independent support of multiple spatial nodes and isolation of mechanical paths, significantly improving the spatial discrimination ability and original independence of the signals. This invention achieves multi-point physical isolation at the structural level, and then combines vector superposition to achieve preliminary noise reduction, effectively reducing artifacts caused by non-target actions and environmental disturbances.

The invention discloses a rotor suspension driving structure and method and a motor, and belongs to the technical field of magnetic suspension drive.The rotor suspension driving structure comprises a rotor suspension assembly and a rotor rotation driving assembly which are arranged on the two radial sides of a rotor, and working air gaps are formed between the rotor suspension assembly and the rotor rotation driving assembly and the rotor; the rotor is made of diamagnetic materials, the rotor suspension assembly below the rotor adopts a permanent magnet array and can be arranged in an Opposite or Halbach mode, passive and stable suspension support is provided for the rotor through magnetic repulsive force, the ratio of the suspension force to the gravity of the rotor is increased along with reduction of the scale, the miniature design of the bearing can be achieved, meanwhile, extra space is not occupied, and the bearing is more compact in structure and more compact in structure. And the size requirement of the motor can be further reduced.

The application provides an array substrate and a display panel. The array substrate comprises a substrate, a common electrode layer arranged on the substrate and comprising a common electrode and a plurality of first scan lines extending along a first direction, and a wiring layer arranged on the common electrode layer and comprising a plurality of second scan lines extending along a second direction intersecting the first direction, each second scan line being electrically connected with a corresponding first scan line, the second scan lines being used for transmitting a scan signal, the potential of the scan signal comprising a pulse peak value and a pulse valley value. The common electrode has the pulse valley value, which comprises making the voltage on the common electrode be the pulse valley value for making a switch transistor be closed, thereby reducing the parasitic capacitance between the common electrode and the second scan lines in most working processes of the pixel, and improving the influence of the coupling effect of the parasitic capacitance between the wiring in the vertical direction of the scan line and the common electrode on the pixel on the display of the display panel in the related art.

The present application relates to the technical field of power quality testing, in particular to a fault prediction and health management system and method for full-process automated power quality testing, comprising the following steps: data acquisition and preprocessing; health core feature extraction; power quality fault prediction, adopting a test working condition-equipment state decoupling fault prediction technology that fuses working condition disturbance sensitive factors, generating a working condition normalized health residual vector based on health core features and test working condition information; health management and operation decision-making.The present application introduces working condition disturbance sensitive factors based on historical health sample statistics, adopts a test working condition-equipment state decoupling fault prediction technology, uses the factors to correct and normalize the sensitivity of original feature deviation, and generates a working condition normalized health residual vector.Based on the residual vector, the fault prediction can reduce false alarms and missed reports caused by working condition fluctuations, and improve the accuracy of fault prediction for the test system.

This invention discloses a quasi-single-mode VCSEL / hollow-core fiber coupling optical fiber, coupling interface, and fabrication method. The coupling fiber includes a thin-diameter outer diameter fiber segment, a first fiber segment, a higher-order mode filtering fiber segment, and a second fiber segment. The thin-diameter outer diameter fiber segment supports few-mode transmission at a wavelength of 850nm, and its core diameter is close to the aperture diameter of the quasi-single-mode VCSEL. The inner diameter of the first fiber segment is the same as that of the thin-diameter outer diameter fiber segment, but its outer diameter is larger. The higher-order mode filtering fiber segment operates in the same wavelength band as the quasi-single-mode VCSEL and transmits in single-mode at this wavelength. The end of the second fiber segment is treated with a tapered heat-diffusion core to gradually expand its fundamental mode field diameter to match that of the hollow-core fiber. This invention, through a unique all-fiber structure, couples the signal light from an 850nm quasi-single-mode VCSEL into a hollow-core fiber link with low delay, low dispersion, and low loss.

The application provides a display panel and a display device. The display panel comprises a display area and a non-display area located at least one side of the display area, and comprises: a substrate located at the display area and the non-display area; a switching circuit located at one side of the substrate and at least at the display area; a first electrode located at one side of the switching circuit away from the substrate and at least at the display area; and a shielding part located at one side of the switching circuit away from the substrate and at least at the display area, the orthographic projection of the shielding part on the substrate at least partially overlaps the orthographic projection of the switching circuit on the substrate, and the signal line connected to the shielding part is different from the signal line connected to the first electrode. The application solves the problem of poor display effect of the display panel caused by coupling crosstalk in the prior art.

The application discloses a laser coarse-precision integrated tracking control method and system, and belongs to the technical field of laser communication control and adjustment. A light beam direction vector is constructed in a three-dimensional space, and inverse rotation operation is carried out in combination with a current turntable attitude, so that camera errors can be uniformly returned to an initial base coordinate system in any attitude, thereby realizing geometric consistency calculation and dynamic decoupling control of coarse tracking and precision tracking. The coarse tracking and the precision tracking adopt the same line-of-sight vector modeling method, the algorithm structure is unified, through the inverse rotation operation, the errors are always returned to the initial base coordinate system, the coupling influence caused by the change of the turntable attitude is eliminated, the mirror compensation angle is directly deducted on the line-of-sight angle level, the control superposition conflict in the traditional double-loop structure is avoided, under the small-angle approximation, only matrix multiplication and arctangent operation are needed, and the application is suitable for embedded high-speed control systems, and the turntable only tracks low-frequency residual errors, and high-frequency jitter of the mirror is avoided from being transmitted to the mechanical structure.

The embodiment of the present disclosure relates to the field of semiconductor, and provides a semiconductor structure and a manufacturing method thereof, wherein the manufacturing method of the semiconductor structure comprises the following steps: providing a substrate; forming a plurality of semiconductor channels arranged in an array along a first direction and a second direction on the substrate; forming a plurality of bit lines extending along the first direction, the bit lines being in the substrate, and each bit line being electrically connected with the plurality of semiconductor channels arranged along the first direction; forming a plurality of word lines extending along the second direction, each word line wrapping around part of side surfaces of the plurality of semiconductor channels arranged along the second direction, wherein, along the first direction, two adjacent word lines are arranged at intervals in a direction perpendicular to the surface of the substrate; and forming a sidewall conductive layer, the sidewall conductive layer being located above one of the two adjacent word lines, and the sidewall conductive layer being arranged in the same layer as the other one of the two adjacent word lines. The semiconductor structure can reduce the coupling effect between adjacent word lines.

The invention discloses a multi-degree-of-freedom vibration reduction and load bearing scheme design method under a distributed spring, and relates to the field of vibration reduction design, the method comprises the steps that a distributed spring vibration isolator is designed, the distributed spring vibration isolator is composed of a platform, a load and eight vibration isolation assemblies, and each vibration isolation assembly comprises a vibration isolation base used for fixing the vibration isolation assemblies to the platform, the vibration-isolated base is used for being connected with a load, the spring plates are arranged on the vibration isolation base and the vibration-isolated base respectively, and the two ends of the compression spring are arranged on the spring plates to be fixed and supported. The eight vibration isolation assemblies are arranged in a hexahedron vertex uniform distribution mode, the intersection point of the axes of compression springs of all the vibration isolation assemblies passes through the geometric center of a hexahedron and is radially distributed in the space, an equivalent stiffness model of the distributed spring vibration isolator is established, and a kinetic equation of the distributed spring vibration isolator is obtained; and optimizing the size of each part of the distributed spring vibration isolator and the rigidity of a compression spring by utilizing a kinetic equation, and connecting the designed distributed spring vibration isolator with a load for use.

The present disclosure relates to the technical field of antennas, and particularly relates to a radiating unit and a base station antenna. The radiating unit comprises a plurality of radiating arms and a slow wave circuit structure, the slow wave circuit structure is arranged on at least one radiating arm; the slow wave circuit structure comprises a plurality of conductor segments arranged at intervals, the first ends of the plurality of conductor segments are connected with the radiating arm, and the contact surfaces of the conductor segments and the radiating arm have a certain included angle. The technical scheme of the present disclosure is beneficial to realizing miniaturized design of the radiating unit, weakening the influence of the low-frequency radiating unit on the performance of the high-frequency radiating unit, improving the stability of the radiation pattern of the high-frequency radiating unit in the array base station antenna, and improving the user experience.

A vertical channel transistor structure and a method of manufacturing the same are provided. The vertical channel transistor structure includes a plurality of oxide semiconductor pillars, a first electrode, a second electrode, a plurality of word lines, and a gate oxide layer. Each of the oxide semiconductor pillars has a top end and a bottom end. The first electrode is disposed below and connected to the top end of each of the oxide semiconductor pillars, and the second electrode is disposed above and connected to the bottom end of each of the oxide semiconductor pillars. The plurality of word lines is disposed at different heights of the plurality of oxide semiconductor pillars. The gate oxide layer is disposed between each of the oxide semiconductor pillars and each of the word lines.

The invention discloses a PWM variable spraying system and a control method thereof. The PWM variable spraying system comprises a pesticide box, a variable spray head assembly, a PWM variable spraying control system, an intelligent center control platform, a spraying main pipeline, at least one spraying branch pipeline, a backflow pipeline, a pesticide liquid pump, a control valve set, a collection assembly and a pressure stabilizing filtering assembly. And the control valve group comprises a main switch valve, a main pipeline switch valve, a branch switch valve and a proportional overflow valve. According to the method, a three-layer measurement and control structure of'spray opening and closing circulation-pressure regulation and control circulation-flow regulation and control circulation 'is constructed, the coupling effect of'pressure change caused by flow regulation and flow change caused by pressure regulation' is reduced, long-period and short-period cooperative scheduling is adopted, and the recovery speed and the control stability under the state transition working condition are improved. And total spraying flow feedback is introduced to construct flow closed-loop correction, so that the spraying quantity control precision and robustness are improved.