1228 results about "Phase control" patented technology

Provided in the present invention is an interference-factor-based high-safety and stable control method for an onboard magnetically suspended flywheel battery system. The method comprises: in the case of a safe operating condition interference, obtaining the difference between a displacement reference signal and an actual displacement signal, and inputting the difference into a Butterworth-filter-fused fuzzy active disturbance rejection control module, so as to obtain control currents, wherein the control currents comprise a radial control current, a torsion control current and an axial control current; the radial control current and the torsion control current are subjected to Clark inverse transformation, and the axial control current is subjected to power amplification, and the three currents are then compensated for, such that a three-phase control current of a radial coil, a three-phase control current of a torsion coil, and a control current of an axial coil are obtained; the control currents control the corresponding coils, and are also input into a multi-information extended Kalman filtering prediction module, such that the actual displacement signal is output; and in the case of a dangerous operating condition interference, cutting off an output signal from an operating condition recognition and safety determination module. The present invention can improve the stability, robustness and anti-interference capability of a system.

The invention belongs to the technical field of phase control cabinet phase regulation and control, and particularly relates to a phase control cabinet regulation and control system and method based on multistage phase compensation. According to the method, the voltage waveform and the current waveform output by the phase control cabinet are preliminarily compensated so as to reduce the initial phase deviation, environmental parameters are matched with a pre-stored interference feature library, the type of an interference source can be identified, and the interference source is quantified as a thermal noise contribution value to calculate an interference intensity prediction value in a prediction window, so that the prediction accuracy is improved. And then providing data support for secondary compensation through a phase residual error output by an interference intensity predicted value, determining a compensation gain parameter according to a dynamic error coefficient during secondary compensation, performing secondary compensation on a voltage waveform and a current waveform to enable a phase deviation to be converged to a preset range, and according to the phase convergence information after secondary compensation, determining the interference intensity predicted value according to the phase convergence information after secondary compensation. And the sampling frequency and the compensation weight factor of the sensor array are reversely adjusted to form a closed-loop compensation control link, so that continuous optimization and improvement of the compensation process are realized.

The invention discloses a reflective slot antenna for RFID tag inventory, and relates to the technical field of antenna design, the slot antenna design scheme of the invention greatly enhances the directionality and signal coverage capability of the antenna through a phase control algorithm and slot arrangement optimization, and improves the signal coverage capability of the antenna through adjusting the phase difference and the slot spacing. The radiation intensity of the antenna in multiple directions is enhanced, blind areas are effectively reduced, multi-path interference is effectively identified and suppressed through a multi-path signal processing algorithm and an LMS minimum mean square error algorithm, and the antenna can automatically adjust the phase of reflection current and filter reflection signals, so that the signal quality of a complex reflection environment is guaranteed, and the signal quality is improved. In addition, an adaptive array antenna system and a beam forming technology are introduced, so that the antenna can dynamically adjust the phase and amplitude of an array unit according to real-time data fed back by the RFID tag, thereby forming a directional beam, concentrating energy to a specific direction, and improving the recognition precision in a specific area.

A reconfigurable intelligent surface. The reconfigurable intelligent surface comprises a three-layer structure, comprising an artificial microstructure array capable of reflection and transmission within a specific frequency band range. By applying an external voltage to control the on / off of a semiconductor switch, an original phase shift structure is changed, ultimately achieving phase control of reflection and transmission. In addition, the structure is simple, can be realized by a microfabrication means, involves a mature process, and is easy to implement in high-frequency bands such as millimeter-wave and terahertz bands.

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 discloses an underwater focusing intense sound system and method based on phase control, and relates to the technical field of focusing intense sound, and the technical scheme is characterized in that a measurement and control upper computer is used for controlling the emission and detection of a trigger signal; the phase control signal generator is used for controlling a phase control signal of sound wave emission; the multi-channel power amplifier is used for driving the acoustic emission phased area array, and the acoustic emission phased area array is used for emitting acoustic waves; the area array calibration hydrophone is used for receiving signals of reflected sound waves; the target calibration sound source is used for transmitting a signal pulse width, the target sound field measurement hydrophone is used for receiving the signal pulse width transmitted by the target calibration sound source and forwarding the signal pulse width to the measurement and control upper computer, and the measurement and control upper computer receives the forwarded signal pulse width for system evaluation and correction. By generating the high-energy strong-focusing sound field and combining the actual underwater signal propagation process, accurate positioning and control of the underwater strong sound field can be completed, so that accurate focusing irradiation and high-resolution imaging of a long-distance small target are realized.

The invention provides an acoustic coalescence elimination method for hydrogen bubbles in molten aluminum, and belongs to the technical field of molten aluminum bubble elimination. According to the method, sound field collaborative focusing is achieved by arranging a phase control array transducer set in a molten aluminum smelting furnace, primary gathered sound waves and efficient coalescence sound waves are applied in stages according to bubble size evolution in a double-frequency scanning mode, and the hydrogen bubbles in the molten aluminum are eliminated. A target frequency is dynamically adjusted in combination with a bubble resonance frequency optimization model to match the inherent frequency of a bubble, a sound-bubble coupling dynamic tracking system is used for monitoring bubble evolution triggering stage switching in real time, and a sound field focus point dynamically scans and covers a three-dimensional space area through phase delay control. A delay detection method is adopted to eliminate cavitation bubble interference and accurately measure the hydrogen content, sound intensity and frequency parameters are optimized according to a sound field parameter self-adaptive regulation and control model, and the technical problem that hydrogen bubbles in a molten aluminum deep area are difficult to be effectively driven by sound waves and cannot be fully coalesced and eliminated is solved.

The invention discloses a phase-adjustable large-current generator, and the generator comprises a main circuit module, and a topological structure of the main circuit module employs a multi-stage IGBT inverter; the phase control module inputs a power grid voltage signal through a voltage transformer, adopts an SOGI-PLL structure to improve signal tracking precision, and combines a virtual synchronous machine technology to enhance system balance and a self-adaptive control strategy to dynamically adjust an output signal so as to realize phase control and synchronization; the electromagnetic compatibility optimization module adopts a layered shielding design and is combined with an optical fiber to transmit a control signal, so that the electromagnetic compatibility of equipment is improved; a relay protection test integration module, wherein the relay protection test integration module comprises a differential protection test mode and a distance protection test mode; according to the invention, the problems of low phase adjustment precision, poor synchronization stability and insufficient electromagnetic compatibility of a large current generator in a new energy grid-connected environment are solved.

Disclosed is a radiator assembly configured to operate in the range of 3.4-4.2 GHz. The radiator assembly comprises a folded dipole with four dipole arms that radiate in two orthogonal polarization planes, whereby the signal of each polarization orientation is radiated by two opposite radiator arms that radiate the signal 180 degrees out of phase from each other. The radiator assembly has a balun structure that includes a balun trace that conductively couples to a ground element on the same side of the balun stem plate. The combination of the shape of the folded dipole and the balun structure reduces cross polarization between the two polarization states and maintains strong phase control between the opposing radiator arms.

The invention relates to the technical field of super-structure lens design methods, provides a design method of a multi-layer super-structure lens group, can realize a broadband achromatic function, and solves the problems that a single-layer achromatic super-structure lens is insufficient in phase regulation and control capability, the caliber cannot be increased and the like. Comprising the following steps: S100, determining an appropriate material as a substrate and an infinitesimal structure of the multilayer metamaterial lens, and determining initial parameters; s200, performing design optimization on phase regulation and control of the multi-layer super-structure lens according to focusing requirements and the infinitesimal database by utilizing a diffraction neural network to obtain optimal phase arrangement; s300, after the multi-layer lens phase arrangement is obtained, infinitesimal elements with appropriate geometric parameters are selected from the infinitesimal element database to fill each layer of super-structure lens so as to accurately match the phase arrangement required by the super-structure lens, and a multi-layer super-structure lens group is obtained; s400, performing analog simulation verification on the actually designed functions of the multilayer super-structure lens group in a computer; and S500, if the result obtained by simulation verification is consistent with the expectation, manufacturing the super-structure lens according to the device parameters obtained by optimization, and completing the design.

The invention discloses a converter grid following-grid construction control mode smooth switching method suitable for wide-range source-grid state change. The method comprises the following steps: constructing a phase-locked loop control loop, a power outer loop control loop and a current inner loop control loop of a grid following type converter based on constant power control; constructing a voltage control loop, a phase control loop and a voltage and current double-closed-loop control loop of the network construction type converter based on the virtual synchronous generator VSG; calculating real-time output active power P and reactive power Q of the converter; constructing a voltage phase synchronization loop switching control loop and a current instruction tracking loop, and realizing smooth switching of dq-axis current instruction values output by a power outer loop of a following network type and a voltage outer loop of a construction network type; and the output dq-axis current instruction value is transmitted to a current inner loop to generate a final voltage signal, and a PWM wave is output to the converter through a modulation link. According to the method, a voltage phase synchronous switching compensation mechanism is adopted, a voltage amplitude and a phase signal are synchronously corrected in the mode switching process, and smooth change of an inner ring current reference signal is achieved.

The invention relates to a transient enhanced multi-phase Buck converter and a control method thereof, and the method comprises the steps: continuously monitoring and outputting a voltage reduction signal through a capacitance current sampling module, calculating a to-be-judged voltage signal, and outputting a high-level judgment signal when the to-be-judged voltage signal is greater than a reference voltage VTH1; after receiving the signal, the phase control module forcibly outputs logic control signals which are all high levels to the self-adaptive conduction time generation module; the multi-phase current conversion module synchronously conducts all single-phase Buck conversion circuits in the multi-phase current conversion module accordingly, so that the single-phase Buck conversion circuits simultaneously work to output the maximum current, and severe fluctuation of the output voltage is rapidly inhibited; and when the full-phase forced working mode is maintained until the voltage signal to be judged corresponding to the new voltage reduction signal is smaller than the reference voltage VTH2 again, the transient is relieved, and the system is automatically switched back to the conventional minimum current phase interleaving control mode. According to the scheme, the problem of response lag of a traditional multi-phase Buck under extreme load transient can be effectively solved.

A multi-phase switching converter provided according to an aspect of the present disclosure includes a power stage and a phase controller, and provides a regulated supply voltage from an input voltage in a light load condition. The power stage receives a phase control signal and drives an inductor to cause flow of an inductor-current according to the phase control signal, wherein a load-current of the multi-phase switching converter is formed from the inductor-current. The phase controller receives a current signal from the power stage at a pin, the current signal being in an analog continuous form to represent the inductor-current in the power stage. The phase controller integrates the current signal in the analog continuous form to generate a voltage-output representing a magnitude of the load-current, and determines the magnitude of load-current based on the voltage-output.

A circuit for slew rate detection and phase control in a multi-phase converter is provided. The circuit includes a first comparator configured to trigger when an output voltage of the multi-phase converter falls to a first output voltage level threshold value. The circuit further includes a second comparator configured to trigger when the output voltage falls to a second output voltage level threshold value which is lower than the first output voltage level threshold value. The circuit further includes a timer configured to start to run for a predefined time window, when the output voltage of the multi-phase converter falls below first output voltage level threshold value. The circuit further includes phase control logic configured to distinguish the ramp rate of the output voltage of the multi-phase converter as corresponding to a slow-rate ramp, a mid-rate ramp or a fast-rate ramp based on the outputs of the first comparator, the second comparator and the timer and enable phases synchronously or asynchronously based on the distinguishing of the ramp rate of the output voltage of the multi-phase converter as corresponding to the mid-rate ramp or the fast-rate ramp.

The invention discloses a method and device for improving reservoir resolution based on phase control inversion, and the inversion method comprises the steps: carrying out the investigation and measurement of a drilled well in a well control region, obtaining a logging data set, carrying out the recognition of a sandstone reservoir in the well control region according to the wave impedance data and target data of the logging data set, and carrying out the recognition of the sandstone reservoir in the well control region. As the target data is logging data which does not comprise wave impedance data and can identify the sandstone reservoir, when the wave impedance data cannot identify the sandstone reservoir and the target data can identify the sandstone reservoir, it is indicated that the position of the sandstone reservoir cannot be predicted based on the wave impedance, a well control area is divided into a plurality of well control blocks containing drilling, and the position of the sandstone reservoir cannot be predicted based on the drilling. According to the method, corresponding phase control simulation inversion is carried out on each well control block, and due to the fact that a more suitable phase control inversion method is carried out on each well control block, the reservoir position of each well control block can be predicted more accurately, and the reservoir prediction accuracy is further improved.

Integrated circuit transceivers having digital timing recovery loops with phase interpolation may incorporate dynamic loop gains to compensate for nonlinearities of the phase interpolation. An illustrative receiver circuit includes: a phase interpolator, a sampling element, a timing error estimator, and a feedback circuit. The phase interpolator provides a sampling signal by applying a phase shift to a clock signal in response to a phase control signal. The sampling element produces a digital receive signal by sampling an analog receive signal in accordance with the sampling signal. The timing error estimator produces a timing error signal indicating an estimated timing error of the sampling signal relative to the analog receive signal. The feedback circuit derives the phase control signal from the timing error signal using a scaling element configured to scale the estimated timing error by a scale factor that depends on the phase control signal.

The utility model provides a phase shifter based on a waveguide transmission line, comprising a waveguide transmission line, a dielectric substrate and a metal structure, and a waveguide cavity is arranged in the waveguide transmission line; the dielectric substrate is arranged in the waveguide cavity, and the dielectric substrate is perpendicular to the signal transmission direction of the waveguide transmission line; the metal structure is attached to the dielectric substrate to form an LC resonance circuit, and an electric adjusting element is arranged on the metal structure and used for adjusting the electric conduction shape of the metal structure so as to control the electromagnetic wave phase in the waveguide transmission line. According to the phase shifter of the scheme, the dielectric substrate is arranged in the waveguide transmission line, extra space is not needed, and the conductive metal shape of the metal structure is controlled by controlling the electrically tunable element, so that the phase change of electromagnetic waves after passing through the waveguide transmission line is controlled. According to the scheme, the dielectric substrate does not need to occupy extra space, the metal structure and the electric adjusting element are small in size, phase adjustment of electromagnetic waves can be achieved in an electric adjusting mode, and the method can be applied to scenes such as a high-power radar phased array.

Light-emitting diode (LED) devices and, more particularly, LED packages with individually adjustable pulse width modulation (PWM) signals and related methods are disclosed. LED devices, such as LED packages, with variable PWM signals include the ability to provide one or more of PWM phase control, PWM period count control, controllable blanking times, and intra-blanking signaling. LED packages are configured for receiving and transmitting digital communication signals. An integrated active electrical element within each LED package is configured to drive the LED chip by PWM while providing such variable PWM relative to other LED packages to more evenly distribute power draws and capacitance requirements in corresponding systems.

The embodiment of the invention provides a method and device for stably controlling an airplane in the auxiliary landing process, computer equipment and a medium, and the method comprises the following steps: judging whether the airplane is in a gliding stage, if so, activating a gliding stage control law, and if not, controlling the airplane to stably control the airplane through the gliding stage control law. The aircraft is controlled through the elevator centering instruction and the horizontal stabilizer automatic trimming instruction until the aircraft quits the gliding stage, and the gliding stage control law is quitted; if the aircraft enters the pull-up stage from the glide stage, activating the leveling stage control law, generating an elevator control instruction based on the steering column displacement and the steering column displacement nonlinear gain through the leveling stage control law, generating a rudder control instruction based on the pedal displacement signal and the pedal displacement nonlinear gain, and controlling the elevator control instruction and the rudder control instruction according to the pedal displacement signal and the pedal displacement nonlinear gain. And controlling the aircraft through the elevator control instruction and the rudder control instruction until the aircraft is grounded. According to the scheme, the landing quality and safety are improved through the staged aircraft auxiliary landing control law.

The invention discloses an application and verification method of antisymmetric chiral metasurface and phase amplitude regulation and control, and belongs to the field of micro-nano optics, the antisymmetric chiral metasurface comprises a surface layer, a middle layer and a back plate layer which are sequentially arranged from top to bottom, and the surface layer is composed of a left semicircular ring and a right semicircular ring; the two ends of the side, facing the right half ring, of the left half ring are bent towards the circle center to form a first protrusion and a second protrusion, one end of the side, facing the left half ring, of the right half ring is bent towards the circle center to form a third protrusion, and the third protrusion and the first protrusion are symmetrically arranged about the circle center. The length of the third protrusion is equal to that of the first protrusion, and the length of the first protrusion is larger than that of the second protrusion. By adopting the application and verification method of the antisymmetric chiral metasurface and phase amplitude regulation and control, by breaking C2 (second-order rotation) symmetry and mirror symmetry, not only can spin decoupling phase control be realized through chiral phase, but also the amplitude of reflected waves can be adjusted by using circular dichroism.

The invention provides a segmented adaptive gain-based short-wave band amplitude and phase control device and method, and relates to the field of short-wave intelligent control. The method comprises the following steps: performing coupling detection processing on N paths of input short-wave signals to obtain coupled short-wave signals and power values of the coupled short-wave signals; based on the coupled short-wave signal and the power value of the coupled short-wave signal, calculating adjustment parameters through a preset adaptive segmented multi-target differential evolution algorithm, wherein the adjustment parameters comprise a frequency correction parameter, a phase adjustment parameter and an amplitude control voltage; adjusting the coupled short-wave signal based on the adjustment parameter to obtain a target short-wave signal; and detecting whether the target short wave signal meets a preset output condition, and if the target short wave signal meets the preset output condition, coupling the target short wave signal to output a radio frequency output signal. Through the scheme, the communication quality is improved.

The invention discloses a low-sidelobe antenna based on double-metasurface amplitude and phase independent regulation and control. The antenna structure comprises a metasurface 1 and a metasurface 2. The metasurface 1 and the metasurface 2 comprise a plurality of metasurface units; the metasurface 1 is a phase modulation plane, comprises a phase regulation and control unit and is decoupled with the amplitude control function of the amplitude filtering plane; the metasurface 2 is an amplitude filtering plane and comprises an amplitude regulation and control unit, and the modulation process is decoupled from phase regulation and control of the metasurface 1; the phase regulation and control unit and the amplitude regulation and control unit comprise three metal layers and two dielectric layers; the first layer, the third layer and the fifth layer from bottom to top are metal layers, and the second layer and the fourth layer are dielectric layers. Through the design of the double-layer metasurface structure, completely independent operation of the phase regulation and control layer and the amplitude modulation layer is achieved, the technical contradiction that amplitude and phase parameters in a traditional single-layer metasurface are mutually restrained is avoided, and the core technical problem that the side lobe level of a transmission antenna is too high is solved cooperatively.

The invention provides a directional adjustment method and device for a phased array generated beam and electronic equipment, and relates to the technical field of radar signal processing. The method comprises the following steps: acquiring array parameters of a phased array and equipment parameters of phase shifters corresponding to array elements in the phased array; based on a preset quantization strategy, the array parameters and equipment parameters of phase shifters corresponding to the array elements, phase shift quantization errors of the array elements are determined; determining a reference array element from a plurality of array elements of the phased array, and determining a phase shift quantity adjustment value of the reference array element based on the phase shift quantization error of each target array element except the reference array element in the plurality of array elements; and according to the phasor shift adjustment value of the reference array element, performing phase shift on the reference array element to adjust the direction of a beam generated by the phased array. According to the invention, quantization loss caused by phase shift of other array elements is compensated by performing phase shift on the reference array element, the influence of large beam pointing deviation caused by the quantization precision of the phase shifter is reduced, and the beam pointing precision is further improved.

The invention belongs to the technical field of antennas, and particularly relates to an ultrathin full-space metasurface unit with dual-band amplitude-phase regulation and control and a multi-beam generator. In order to solve the problems that component design cost is high, unit amplitude is low, and incident wave energy cannot be efficiently regulated and controlled, the full-space metasurface unit comprises a first metal layer and a second metal layer, the first metal layer is located above the second metal layer, a dielectric plate is arranged between the first metal layer and the second metal layer, and the dielectric plate is located between the first metal layer and the second metal layer. A first C-shaped groove and a double split ring resonator are etched on the first metal layer from outside to inside in a hollowed-out manner, a second C-shaped groove and an elliptical groove are etched on the second metal layer from outside to inside in a hollowed-out manner, and the opening directions of the first C-shaped groove and the second C-shaped groove are perpendicular to each other. And the multi-beam generator is designed based on the total space metasurface unit.

The invention belongs to the technical field of DC-DC converters, and particularly relates to a buck-boost single-inductor three-output DC-DC converter. The converter comprises a power tube, a divider resistor, a comparator, a control logic module, a turn-on time generation module, a self-adaptive turn-off time module and a current detection module. The power tube is used for a buck-boost topological structure of a traditional DC-DC converter; each path of output voltage of the converter is fed back to the comparator after passing through the divider resistor, and a duty ratio signal of the energy distribution switch is generated in the control logic, so that the power tubes are conducted in sequence; the turn-on time generation module is used for controlling the turn-on time of the system and generating a duty ratio signal of an energy generation switch in control logic, and the turn-on time generation module comprises peak current control and self-adaptive phase control; the steady-state switching frequency of the system is controlled by the self-adaptive turn-off time module; the current detection module detects inductive current information. The method has good key indexes such as cross modulation, response speed, conversion efficiency and the like.

The invention relates to a high-speed serial interface circuit, and discloses a linearity calibration and precision expansion method of a numerical control phase interpolator. According to the method, a digital delay converter (DDC) is cascaded behind a digital control phase interpolator (DPI), and delay compensation is carried out on an interpolated clock signal; sampling the compensated clock signal by using an analog-to-digital converter (ADC) to obtain a phase sampling value; the calibration control module calculates a phase error and generates a delay control word; when the numerical control phase interpolator DPI works, phase control words and delay control words are synchronously provided for corresponding modules, and linearity calibration and precision expansion are achieved. According to the method, a special detection circuit does not need to be added, hardware resources existing in a high-speed serial interface are utilized, the method can be achieved through simple digital control logic, the phase integral linearity is improved to be within 25 fs from 250 fs, meanwhile, the precision of an 8-bit phase interpolator is improved to be close to the 11-bit level, and the method is suitable for large-scale popularization and application. And the clock recovery performance and the data transmission reliability of the high-speed communication system are obviously improved.

The invention discloses a multi-hop RIS (Radio Information System) signal coverage method without CSI (Channel State Information) dependency, which belongs to the field of communication, and is characterized in that modeling is carried out on an incident signal of each RIS based on phase compensation, the modeling is more accurate compared with a traditional point source model, a codebook solution method capable of uniformly covering the next RIS is designed in the transmission stages of BS-RIS-RIS and RIS-RIS-RIS, and the coverage efficiency of the next RIS is improved. According to the method, the energy transfer efficiency of the next RIS can be improved, an optimization problem can be established to obtain an RIS codebook for beamforming only by considering a signal transmitting position and a signal receiving position needing to be enhanced during signal modeling, a complex channel estimation process is not needed, computing resources are saved, and on the premise that channel state information is not needed, the energy transfer efficiency of the next RIS can be improved. A phase control matrix of each RIS block in the multi-hop RIS is obtained, and signal enhancement in a traditional communication signal range scene such as a mine hole is achieved by controlling each RIS block.

The invention relates to a control method of a foam pipe foaming process in the technical field of production of new material foam pipes, which comprises the following steps: acquiring physical characteristic data of foam raw materials, including viscosity, density and foaming agent content, and establishing a raw material characteristic database; adjusting the phase difference between adjacent vibrators through a phase control algorithm according to density data in the raw material characteristic database, so that ultrasonic energy forms a uniform energy distribution field in the foam raw material; an optical sensor is used for monitoring the dispersion state of the foaming agent in real time, the frequency and power of an ultrasonic vibrator are dynamically adjusted according to the monitoring result, and if it is detected that local foaming is not uniform, power output of the vibrator in the corresponding area is increased; the bubble forming process is captured through a high-speed camera, bubble size distribution is analyzed through an image processing algorithm, and whether the bubble structure reaches preset standards including the average pore size, the pore size distribution range and the pore wall thickness or not is judged.

The invention discloses a terahertz phase shifter chip based on a magnetic coupling line fine adjustment technology, the magnetic coupling line fine adjustment technology is applied to a magnetic coupling line distributed attenuator, and a magnetic coupling line is added below a transmission line of the magnetic coupling line distributed attenuator. And a switching transistor array and a capacitive compensation transistor are respectively added at two ends of the magnetic coupling line. A vector synthesis type structure is adopted, the magnetic coupling line fine adjustment technology is innovatively provided and applied to the magnetic coupling line distributed attenuator, compared with a traditional distributed attenuator, the magnetic coupling line distributed attenuator has the advantages of being higher in precision and smaller in attenuation stepping, the occupied area is the same, the phase shifting control function of the phase shifter is achieved based on the attenuator, and the application range is wide. Finally, the phase of an output signal is controlled to realize a phase control function of 5.625-degree phase shift stepping in a full 360-degree range, and an amplitude control function in a 3dB range can be realized.

The invention relates to a reconfigurable intelligent metasurface which comprises a three-layer structure and comprises an artificial microstructure array with reflection and transmission in a specific frequency band range, an original phase shift structure is changed by controlling on-off of a semiconductor switch through external voltage, and finally phase control over reflection and transmission is achieved. Moreover, the structure is simple, can be realized through a micro-machining means, is mature in technology, and is easy to realize in high-frequency bands such as millimeter waves and terahertz.