32 results about "Transmission coefficient" patented technology

This application discloses a method, apparatus, device, and medium for self-calibration of an ultrasonic sensor for transformers. The method involves obtaining the spatial distance by using the time difference and measured sound velocity of the same partial discharge pulse received by a built-in UHF antenna and an external ultrasonic sensor; constructing a cross-medium model based on the acoustic parameters of the insulating oil and the tank to calculate the sound pressure transmission coefficient at the liquid-solid interface; constructing a spherical wave dissipation equation in viscous oil by combining discharge and fluid parameters, and calculating the theoretical sound pressure of the outer shell using the distance and transmission coefficient; comparing the measured peak output voltage of the external sensor with the in-situ acoustic-electric conversion sensitivity for online self-calibration. This method reconstructs a high-fidelity sound wave propagation attenuation model, which can improve calibration accuracy and diagnostic reliability.

The invention relates to an ultra-wideband frequency selective metasurface prediction method based on a rapid prediction algorithm, and belongs to the technical field of electromagnetic engineering. Comprising the following steps: acquiring a single-layer S parameter; phase-amplitude relation modeling is carried out; and constructing a multi-layer structure and optimizing parameters. According to the prediction method provided by the invention, transmission coefficients of units under different unit parameters and different air layer thicknesses can be quickly calculated as long as S parameters of a single-layer structure are obtained; through the innovative technical means, hundreds of hours and even longer time needed by traditional full-wave simulation are greatly shortened to the level of several minutes, and therefore the time expenditure of the simulation process is remarkably reduced. By means of the improvement, the design iteration efficiency is greatly improved, clear structure adjustment guidance is provided for researchers, and resource waste and time loss caused by dependence on blind trial and error and repeated simulation in the past are avoided.

The invention relates to the technical field of ocean engineering, and discloses a wave characteristic numerical simulation method and system of a permeable breakwater structure. The method comprises the following steps: firstly, establishing a numerical model of a permeable breakwater structure, including pile foundation arrangement and geometric parameters of a breakwater body; then, wave condition parameters and structure parameters are set, and the structure parameters comprise the pile diameter, the pile distance, the water depth in front of the embankment and the wave overtopping amount; secondly, based on a computational fluid dynamics method, simulating interaction between waves and the permeable breakwater, and calculating a wave transmission coefficient and structural stress; and finally, analyzing the influence rule of each parameter on the wave transmission coefficient, and extracting the structural stress distribution under the wave action. According to the method, the wave characteristics of the open breakwater are systematically researched through a numerical simulation method, the design efficiency is remarkably improved and the physical experiment cost is reduced while the calculation precision is ensured, and a basis is provided for the optimal design of the open breakwater.

This invention discloses a method, apparatus, device, and medium for calculating electromagnetic waves in a geo-ionospheric waveguide. It obtains the pulse operating frequency set and medium parameter set of electromagnetic waves in a layered geo-ionospheric waveguide model. The electromagnetic waves consist of multiple electromagnetic waves to be calculated in different frequency bands. Based on the pulse operating frequency and medium parameter set of each electromagnetic wave to be calculated, a target calculation method for the receiving electric field is determined from multiple preset electric field calculation methods. The target transmission coefficient is determined based on the transmitting electric field at the emission point of each electromagnetic wave to be calculated, the layered geo-ionospheric waveguide model, and the target calculation method for the receiving electric field. The time-domain waveform of the electromagnetic waves is calculated based on the target transmission coefficients of multiple electromagnetic waves to be calculated and a preset electromagnetic pulse frequency domain calculation formula. In this way, the most suitable target calculation method for the receiving electric field is determined based on the pulse operating frequency set and medium parameter set of the electromagnetic waves to be calculated in different frequency bands, enabling accurate and rapid calculation of electromagnetic waves in a layered geo-ionospheric waveguide.

An antenna module is provided and includes a flexible circuit having a first antenna feed and a second antenna feed. The antenna module includes a ground plane. The antenna module includes a first antenna element coupled to the first antenna feed. The first antenna element includes a first ground short stub coupled to the ground plane. The first antenna element includes a first radiating element defining an omnidirectional radiation pattern. The first radiating element includes a first main segment extending along a first arcuate path. The antenna module includes a second antenna element coupled to the second antenna feed. The second antenna element includes a second ground short stub coupled to the ground plane. The second antenna element includes a second radiating element defining an omnidirectional radiation pattern. The second radiating element includes a second main segment extending along a second arcuate path oriented parallel to the first arcuate path. The first and second antenna elements have a transmission coefficient lower than −10 dB.

The invention relates to the technical field of ultrasonic detection, in particular to a method for eliminating an error of a curve measured by an ultrasonic rebound comprehensive method. The method comprises the following steps: acquiring actually measured data of an arch bottom measuring area and an arch top measuring area; further acquiring an environment difference index according to the high-frequency difference, the sound velocity value difference and the rebound value difference of the ultrasonic full-wave train signals of the two measurement areas; according to the difference between the sound velocity values of the two measuring areas and the sound velocity value of the standard model and the difference between the rebound value of the two measuring areas and the rebound value of the standard model, the distribution of environmental difference indexes is combined, and a current weighted fitting deviation coefficient is obtained; and finally, selecting the final compressive strength from the preset trial calculation set based on the weighted fitting deviation coefficient. According to the method, the environment difference index is constructed through the sound velocity, the rebound and the high-frequency transmission coefficient of the arch crown / arch bottom measuring area, the fitting deviation of the trial strength is subjected to asymmetric weighting, water-induced sound velocity virtual high is automatically exempted, abnormal rebound is blocked, and therefore the real compressive strength is decoupled under lossless blind measurement.

The invention discloses an electromagnetic pulse propagation calculation method based on a generalized propagation matrix and a transfer function method, and the method comprises the steps: determining the explosion point height and the receiving point height of an electromagnetic pulse, and constructing an ionosphere parameter on a propagation path; calculating a wave vector of the position of an electromagnetic pulse explosion point, and calculating a reflection coefficient matrix and a transmission coefficient matrix of the electromagnetic pulse which upwards penetrates through the ionized layer and downwards radiates to the ground through a generalized propagation matrix method; defining the type of the electromagnetic pulse, and calculating the amplitude of the superposed uplink and downlink electromagnetic waves at the explosion point position through the reflection coefficient matrix; in combination with a generalized propagation matrix method and a transfer function method, calculating the frequency spectrum and time domain waveform of the electromagnetic wave penetrating through the ionosphere at the explosion point position through inverse Fourier transform; time-frequency characteristic analysis is carried out according to the frequency spectrum and the time-domain waveform of the electromagnetic waves penetrating through the ionosphere, a time-frequency graph is obtained, the experiment cost is remarkably reduced, and efficient and low-cost theoretical support is provided for propagation of the electromagnetic pulses in the ionosphere.

The invention belongs to the technical field of microwave frequency selective surface and infrared reflection focusing composite metasurface structures and design. A unit of a microwave band adopts a layered structure of metal pattern-ceramic dielectric-air gap-silicon substrate. The metal pattern is a miniaturized design of a three-order nested square patch, and the unit period is only 0.164 times of the working wavelength. According to the invention, a passive factor of a silicon substrate of an infrared band and an air gap generated by actual processing are creatively converted into an active design degree of freedom, and through collaborative optimization, a transmission coefficient higher than 0.99 at a center frequency of 15GHz, a-1dB bandwidth greater than 30%, and excellent angle stability under oblique incidence of 0-45 degrees are realized. The unit reflectivity of the infrared band is higher than 99% and close to 1, phase modulation can be achieved, and the infrared metasurface has a convergence function. The device is simple in structure and easy to integrate, and a new scheme is provided for realizing a function integrated device of microwave and infrared bands.

The application relates to the technical field of antenna isolation test, and discloses an intelligent test method and system for multi-port antenna isolation performance, which comprises the following steps: sequentially testing the transmission coefficients of each group of to-be-tested ports of a measured antenna by using a network analyzer, and constructing an S parameter matrix; any group of to-be-tested ports comprises an excitation port and a response port, and the transmission coefficient is the ratio of the power of a scattering wave received by the response port to the power of an incident wave input by the excitation port; based on the S parameter matrix, the isolation of each group of to-be-tested ports at each frequency within the working frequency band of the measured antenna is calculated; the worst isolation of all groups of to-be-tested ports within the working frequency band is identified, and the worst isolation is marked as the isolation of the measured antenna. The application effectively avoids measurement errors and accidental interference, and improves the accuracy and reliability of the isolation test.

This application relates to the field of electromagnetic wave and microwave technology, and provides a method, apparatus, device, and storage medium for extracting field strength distribution. The method includes: acquiring scene data; obtaining the radiation pattern and transmission coefficient of the micro-aperture using a full-wave simulation method; generating a first field distribution of a target point within a first metal cavity using a ray tracing method; generating a second field distribution of a second simulated receiver using the ray tracing method and the radiation pattern of the micro-aperture, or generating a simulated signal source for a second simulated transmitter based on the field distribution of the first simulated receiver and the transmission coefficient of the micro-aperture, and then generating the second field distribution of the second simulated receiver using the ray tracing method. The field distribution within the first metal cavity can be obtained using the ray tracing method, and then the radiation pattern and transmission coefficient at the micro-aperture can be obtained using the full-wave simulation method. Combining the ray tracing method and the full-wave simulation method can optimize the accuracy of the field distribution extraction results without consuming excessive computer memory and computation time.

The invention discloses a Huygens metasurface-based terahertz phase shifter, which relates to the technical field of terahertz propagation and phase modulation and is composed of a plurality of terahertz units of rectangular resonant rings. Each resonance unit comprises a dielectric substrate PI (polyimide) and a metal structure. The metal structure in each resonance unit is composed of a plurality of metal strips. According to the terahertz phase shifter based on the Huygens metasurface, the stable high transmission coefficient can be achieved within the working frequency band of 0.4-1.0 THz, meanwhile, the transmission phase of the resonance unit covers the wide adjustment range of over 350 degrees, and therefore flexible and accurate terahertz wave phase adjustment and control are achieved. The structure is simple and fixed, the manufacturing process is mature and reliable, and important application prospects are achieved in the fields of terahertz components, terahertz imaging, terahertz communication and the like.

The application provides an array antenna mutual coupling calibration method and system based on spatial multi-scale feature decoupling, relates to the technical field of antenna testing, and comprises the following steps: placing a target antenna array in a full-wave anechoic chamber, connecting two ports to a vector network analyzer, and terminating the remaining ports with a matching load; measuring and obtaining the transmission coefficient between the two ports in a preset working frequency band to represent the coupling strength between the ports; repeatedly performing the measurement operation on multiple port pairs to obtain a scattering parameter matrix representing the mutual coupling effect; and comparing the scattering parameter with a preset technical index to determine whether the antenna isolation meets the requirements. The application can comprehensively and accurately represent the mutual coupling effect of a multi-channel antenna, avoid errors caused by reflection interference in the testing process, realize rapid determination and quality control of the isolation performance, and provide a reliable basis for the design optimization and engineering application of a base station antenna.

A method, device and equipment for calculating hydrodynamic characteristics of a flexible Bragg submerged dike based on frequency band control and a computer storage medium relate to the technical field of coast and ocean engineering, and the method comprises the following steps: constructing a flexible structure-water wave complete coupling mathematical model; the structural natural vibration frequency and the Bragg resonance frequency of the flexible Bragg submerged dike are calculated to determine a core wave absorption frequency band, and frequency band control conditions of the flexible Bragg submerged dike are formed; weighting the transmission coefficient, the energy loss and the wave load on the basis of a frequency band control condition in combination with a target sea condition spectrum to form a comprehensive evaluation factor, and representing the comprehensive wave dissipation performance and the structural stress performance of the submerged dike; according to the scheme provided by the invention, the hydrodynamic characteristics of the flexible Bragg submerged embankment can be accurately calculated, a scientific basis is provided for reasonable design and arrangement of the flexible Bragg submerged embankment in ocean engineering, and the wave dissipation performance and comprehensive benefits of the submerged embankment are improved.

The invention discloses a polymorphic storage system based on photon-magneton-phonon coupling. The system is composed of a microwave device layer, a magnetic thin film layer, a piezoelectric substrate layer, an acoustic transducer layer and a direct current bias coil, and a photon-magneton-phonon three-mode coupling state is achieved under double excitation of microwave pulses and sound wave pulses. The frequency and coupling strength of the coupling state can be used as a specific storage state. And the read-out of the storage state is completed through the data analysis of the microwave transmission coefficient S21. According to the invention, on-chip array integration is supported, a multi-pixel matrix structure can be expanded, and a new scheme is provided for constructing high-density, multi-energy-level and low-power-consumption information storage equipment.

This application relates to the field of wave energy simulation technology and discloses a simulation method and system for dual-mode frequency tuning of oscillating water columns in a double-slit caisson. The method includes: establishing a two-degree-of-freedom dynamic equation system based on the displacements of the water columns in the front and rear cavities, using the slit transmission coefficient as a parameter to obtain the coupling stiffness; substituting the coupling stiffness into the eigenvalue equation to decompose the oscillation modes of the two cavities to obtain the mode transformation matrix and mode amplitude ratio; performing convolution integration on the mode amplitude ratio and the wave power spectrum of the target sea area to obtain the first-order mode weight and second-order mode weight; using a preset target first-order mode weight as the outer convergence target and a preset target natural frequency as the inner convergence constraint to perform a double-layer nested iterative solution on the slit transmission coefficient and the rear cavity volume to obtain the optimal slit width and the optimal rear cavity volume. This application solves the problem of unobservable and undesignable energy contribution ratios of each mode in existing technologies, leading to spectral mismatch.

The invention relates to the technical field of antenna isolation testing, and discloses an intelligent testing method and system for the isolation performance of a multi-port antenna, and the method comprises the steps: sequentially testing the transmission coefficients of each group of to-be-tested ports of a tested antenna through a network analyzer, and constructing an S parameter matrix; any group of ports to be tested comprises an excitation port and a response port, and the transmission coefficient is the ratio of the power of scattered waves received by the response port to the power of incident waves input by the excitation port; respectively calculating the isolation degree of each group of ports to be tested at each frequency in the working frequency band of the tested antenna based on the S parameter matrix; and identifying the worst isolation degree of all groups of ports to be tested in the working frequency band, and marking the worst isolation degree as the isolation degree of the tested antenna. According to the invention, measurement errors and accidental interference are effectively avoided, and the accuracy and reliability of the isolation test are improved.

The application discloses a kind of suitable for deep brackish aquifer seismic reflection wave response high fidelity simulation calculation method, the method includes S10: according to brackish aquifer development characteristics, establish brackish aquifer pore fluid rock physics model, calculate the viscosity, density, longitudinal wave velocity and bulk modulus of brackish aquifer pore fluid;S20: according to brackish aquifer development characteristics, establish brackish aquifer multi-scale rock physics model, obtain brackish aquifer equivalent stiffness matrix;S30: establish geology-seismic forward modeling;S40: utilize propagation matrix method to calculate brackish aquifer reflection and transmission coefficient matrix;S50: calculate brackish aquifer reflection wave seismic response.The application combines seismic rock physics modeling and seismic forward simulation technology, considers the viscoelasticity characteristics and thickness of brackish aquifer, is more in line with actual geological conditions, low in cost, high in accuracy, can quickly and accurately calculate deep brackish aquifer seismic reflection wave response, provides theoretical support for the evaluation and optimization of carbon storage space.

This application relates to the field of marine engineering technology, and discloses a floating breakwater with a resonant cavity and its hydrodynamic performance analysis method. The method includes: constructing a floating breakwater model; determining the target length and target width of the resonant cavity, the wave-facing open-type wave-dissipating chamber, and the wave-repelling open-type wave-dissipating chamber on the leeward side; dividing the entire fluid domain of the floating breakwater into multiple regions; obtaining the velocity potential of each region; calculating the wave force of the floating breakwater; using the velocity potential of each region to express the added mass and radiation damping of the floating breakwater when it undergoes unit forced oscillation, so as to construct the motion response equation of the floating breakwater in the frequency domain under wave action; obtaining the transmission coefficient and energy dissipation coefficient of the floating breakwater through the equation set, and evaluating the shielding performance and wave-dissipating performance of the floating breakwater based on each coefficient. The synergy of the resonant cavity and the open-type wave-dissipating chamber can improve the wave-dissipating efficiency, and the analysis method can provide an efficient and reliable basis for the design of breakwaters.

The application discloses a kind of water power parameter analysis method and system of multi-module articulated laminated structure, and the water power parameter analysis method is specifically as follows: design the complete boundary value problem of wave and the interaction of multi-module articulated laminated structure, based on the unknown complex expansion coefficient in velocity potential of complete boundary value problem, then unknown complex expansion coefficient is used to calculate the reflection coefficient, transmission coefficient, dimensionless deflection, dimensionless bending moment and dimensionless shear force of laminated structure, and the hydroelastic response of multi-module articulated laminated structure is characterized.The method of the application can quickly complete the water power parameter analysis of multi-module articulated laminated structure.

The invention provides a bulwark stress analysis method and system based on a large wave water tank, and relates to the technical field of water transportation engineering simulation tests. In order to solve the problems of poor stress analysis test scene coverage capability and poor analysis result precision in the prior art, the size of a wave water tank is determined according to actual wave parameters; specifically, the water tank is a large wave water tank with the length of 90 meters, the width of 3 meters and the height of 1.8 meters. A wave water tank is set to be a wave generation area and a wave absorption area, and a wave height measuring device is installed in the wave generation area; in the wave generation area, waves of various working conditions are generated, and initial wave parameters are measured according to a wave height measuring device; installing the breakwater model at a preset position of a wave generation area, and measuring wave parameters after the breakwater model is installed; and determining transmission coefficients of various working conditions according to the two wave parameters. The breakwater stress analysis method disclosed by the invention has relatively high scene coverage capability and relatively high analysis result precision.

The application discloses a reflection-free structure design method for perfect transmission through complex media, and belongs to the electromagnetic wave propagation field. The reflection-free structure design method is obtained from the formula of the internal multi-port method, the internal excitation source load state is preset, and the preset load state is optimized by using a genetic algorithm, so that the highest average energy transmission coefficient from a transmitting antenna to a receiving antenna under different complex media is successfully realized. The application starts from port information, converts field information into port information, discloses a design method of the reflection-free structure for transmitting through complex media, and realizes significant reduction of scattering loss caused by wave propagation in different complex media. The method enriches the theoretical system of wave propagation in complex media, provides an important thought and direction for realizing reduction of scattering loss caused by wave propagation in complex media, and has important research significance.

This invention relates to the field of architectural acoustics technology and discloses a method for evaluating the sound insulation performance of buildings based on digital twins. The method includes: collecting sound pressure and acceleration integrals to obtain the vibration velocity at the measuring point, and separating the direct reflected sound pressure by stripping the surface radiated sound pressure; subsequently, calculating the boundary energy reflection coefficient and retrieving the local equivalent density at the measuring point; calculating the dispersion bending wave velocity and spatial phase delay based on the equivalent density; combining the spatial attenuation weight and the phase delay cosine factor to perform phase compensation spatial interpolation on the dynamic vibration velocity of the twin node; finally, mapping the equivalent density to the twin node to recalculate the wave velocity, constructing a dynamic apparent acoustic impedance based on the vibration velocity extreme values, thereby obtaining the transmission coefficient and converting it into a comprehensive dynamic building sound insulation index.

The invention relates to the technical field of ocean engineering, and discloses an energy dissipation floating breakwater with a resonance type cavity and a hydrodynamic performance analysis method of the energy dissipation floating breakwater. Respectively determining target lengths and target widths of the resonant cavity, the wave head side perforated wave dissipation chamber and the wave back side perforated wave dissipation chamber; the whole fluid domain of the floating breakwater is divided into a plurality of areas; solving the speed potential of each region; calculating the wave force of the floating breakwater, and expressing the additional mass and radiation damping when the floating breakwater performs unit forced oscillation by utilizing the speed potential of each region so as to construct a motion response equation of the floating breakwater in a frequency domain under the action of waves; the transmission coefficient and the energy dissipation coefficient of the floating breakwater are obtained through the equation set, and the shielding performance and the wave dissipation performance of the floating breakwater are evaluated according to all the coefficients. The cooperation of the resonant cavity and the perforated wave dissipation chamber can improve the wave dissipation efficiency, and the analysis method can provide an efficient and reliable basis for the design of the breakwater.

A combined wave-dissipating structure and prefabricated construction method for long-period waves, relating to the field of coastal engineering technology, includes a wave-guided reflector unit, an array plate unit, and an ecological wall unit. These units are arranged sequentially along the wave incidence direction. The wave-guided reflector unit has several wave-guided inclined plates inserted within its steel frame. The array plate unit includes multiple parallel vertical resistance plates. The ecological wall unit is filled with ecological material with a porosity of 0.75-0.85. This invention achieves an optimal transmission coefficient as low as 0.17 when the prototype wave period is 14.1s. The wave-dissipating effect is even better when the wave period is less than 14.1s, reaching 95% when the wave period is relatively short. The three units can be optimally combined according to wave characteristics to achieve the best match between wave-dissipating effect and economic benefits.

This invention provides a method for calculating the wave-damping performance of a multi-layer flat permeable breakwater structure. Based on the water depth d, wave height H, and wavelength L at the breakwater construction location, the horizontal plate width B of the multi-layer flat permeable breakwater structure is determined. s Vertical plate spacing D s Based on the number of horizontal plate layers, the average wave transmission coefficient K behind the multi-layer flat permeable breakwater structure is calculated. t According to the maximum wave height H of the vessel operation restrictions within the port. L Parameters were used to calculate the maximum permissible average wave transmission coefficient K of the breakwater. t L Compare K t and K t L The size relationship, when K t ≤K t L When K indicates that the determined breakwater structural parameters meet the wave dissipation requirements; t >K t L When the specified breakwater structural parameters do not meet the wave dissipation requirements, it is necessary to increase the width B of the horizontal plate. s Then calculate the average wave transmission coefficient K behind the breakwater structure. t until K is satisfied. t ≤K t L This method facilitates the dimensional design of multi-layer flat permeable breakwater structures and improves the accuracy of breakwater wave-damping performance prediction.

The invention discloses a thin-film lithium niobate linear electro-optical modulator based on a double-injection structure, relates to the technical field of optical communication, and aims to solve the problems that an electro-optical overlapping factor of a traditional structure is low and is easily influenced by dispersion of microwave signals during high-frequency modulation, and the technical scheme is that the thin-film lithium niobate linear electro-optical modulator comprises a silicon dioxide substrate, a waveguide and a silicon dioxide cladding; the waveguide comprises an input waveguide, a Y beam splitter, a first connecting waveguide, a first directional coupler, a dissipater, a second connecting waveguide, a first straight waveguide, a second straight waveguide, a gold electrode, a second directional coupler and an output waveguide. Different transmission coefficients and coupling coefficients are set for the first directional coupler and the second directional coupler, and transmission responses of square waves, sine waves and similar triangular waves can be obtained. Through the synergistic effect of the two independent injection regions, three-signal resonance of a double-main-line waveguide signal and a micro-ring signal is realized, accurate regulation and control of an electric signal can be completed, a high-order nonlinear effect is inhibited, and the linearity is improved.

This application provides a method and system for measuring the dielectric constant of a material. The method includes: acquiring the incident field distribution of a transmitting antenna on a reference plane in the absence of a material sample; placing the material sample to be tested between the transmitting antenna and the receiving probe, measuring the transmission coefficient in the absence of a material sample and in the presence of a material sample, and processing the transmission coefficient to obtain a measured normalized transmission coefficient; constructing a forward physical transmission model based on the incident field distribution, wherein the forward physical transmission model takes the geometric parameters and dielectric constant of the material sample to be tested as input and outputs a theoretical normalized transmission coefficient; and determining the dielectric constant of the material sample to be tested by adjusting the assumed value of the dielectric constant to make the theoretical normalized transmission coefficient approximate the measured normalized transmission coefficient.

The present application relates to the technical fields of microwave sensing and detection, the existing displacement sensor measures the relative displacement amount but cannot synchronously judge whether the target object is contacted, and has problems of low sensitivity, single detection direction and the like, the present application proposes a contact displacement sensor for detecting objects based on electromagnetic wave transmission spectrum peak frequency shift amount, a target object is arranged in the cavity main body, the peak frequency of the electromagnetic wave is obtained through a vector network analyzer of an electromagnetic wave receiving port, when the relative position and the contact state of the target object change, the peak frequency of the transmitted electromagnetic wave is offset, the present application can quickly and accurately identify the contact state of two measured target objects by detecting the curve shape and the peak position of the transmission coefficient, and the reliable judgment of the contact on-off is realized; The present application does not need complex circuit devices, has the advantages of strong anti-interference ability, high detection sensitivity and simple structure, and can be widely applied to the technical fields of displacement detection and mechanical contact sensing.

The application aims to provide an equivalent electromagnetic parameter testing device and inversion method of electromagnetic structure material, and belongs to the technical field of material electromagnetic performance testing. The device is innovatively provided with a circumferential slide rail, so that the device can realize the acquisition of the reflection coefficient and the transmission coefficient of the electromagnetic structure material under different incidence angle domains, and deduce the equivalent electromagnetic parameter inversion formula under oblique incidence based on the reflection coefficient and the transmission coefficient. Meanwhile, the inversion process is improved based on the device, especially the calibration process is improved, so that the inversion of the equivalent electromagnetic parameter under different incidence angle domains is realized, and the possibility of providing more dimensional electromagnetic performance basic data for the research and application of the electromagnetic structure material is provided.