205 results about "Scattering parameters" patented technology

The present invention relates to the field of array antenna design, and to a multi-port array antenna layout detection method, including: obtaining layout information of the array antenna; selecting any port of the array antenna as a target port, exciting the target port and detecting the response of each port of the array antenna under the excitation, constructing a linear equation system based on the response of each port of the array antenna under the excitation, and obtaining the scattering parameters of the target port; extracting the coefficient characteristics of the linear equation system and constructing a preconditioning operator based on the coefficient characteristics; calculating the scattering parameters of the ports in the antenna array except the target port according to the preconditioning operator; determining the isolation between the ports of the array antenna according to the scattering parameters of each port of the array antenna, and judging whether the array antenna layout design meets the standard according to the isolation between the ports of the array antenna, and obtaining the array antenna layout detection result. The present invention can improve the detection efficiency of the multi-port isolation of a large-scale array antenna.

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

The invention discloses a scattering parameter de-embedding method, device and equipment, and relates to the technical field of semiconductors. The method comprises the following steps: obtaining n de-embedding test structural members; constructing a first ABCD matrix and a second ABCD matrix according to the first admittance and the second admittance; according to the third admittance, the fourth admittance and the length of each transmission line in the n transmission lines, constructing n third ABCD matrixes; the third admittance is the admittance between the unit length transmission line and the ground in the equivalent pi-type circuit corresponding to the unit length transmission line, and the fourth admittance is the admittance of the unit length transmission line; and according to the first ABCD matrix, the second ABCD matrix and the n third ABCD matrixes, solving to obtain a de-embedded ABCD matrix of the to-be-tested device, and converting the ABCD matrix of the to-be-tested device into scattering parameters. According to the embodiment of the invention, scattering parameter de-embedding can be more efficiently and flexibly realized, so that the overall scattering parameter de-embedding efficiency and precision can be effectively improved.

The invention discloses a TSV-based multi-layer microsystem interconnection module total dose effect simulation modeling method, and relates to the technical field of three-dimensional integrated microsystems, and the method comprises the steps: obtaining geometric parameters and material parameters of a multi-layer three-dimensional microsystem interconnection module, building a finite element model of a microsystem module based on the geometric parameters and the material parameters, and carrying out the simulation modeling of the TSV-based multi-layer microsystem interconnection module total dose effect. Setting boundary conditions and port excitation; scattering parameters under different material conditions in the finite element model are extracted, frequency points are fixed, and a relational expression of the scattering parameters and material parameters is established; an RLC equivalent circuit model is constructed, and an equivalent circuit extraction method is obtained; according to an equivalent circuit extraction method, in combination with a relational expression of scattering parameters and material parameters, establishing a relationship between return loss parameters and equivalent circuit parameters; and establishing a relation model between the radiation dose and the resistance, inductance and capacitance in the equivalent circuit according to the relation between the return loss parameter and the equivalent circuit parameter. According to the invention, a scientific basis is provided for the reliability design of the three-dimensional microsystem in the radiation environment.

The invention relates to the technical field of signal balanced transmission, and discloses a high-speed photoelectric interconnection signal balanced transmission method and device, and the method comprises the steps: carrying out the bandwidth characteristic and nonlinear characteristic collection of an on-chip photoelectric interconnection channel, and obtaining a channel characteristic data set; scattering parameters of the on-chip photoelectric interconnection channel are measured according to the channel characteristic data set, S21 pre-compensation processing is carried out, and a pre-compensation signal is obtained; on-chip multi-channel parallel transmission is carried out on the pre-compensation signal, and multi-channel transmission state information is collected; inputting the pre-compensation signal and the multi-channel transmission state information into a double-level signal equalization model for linear and nonlinear equalization processing to obtain a first equalization signal; and carrying out mixed compensation operation of time domain equalization and frequency domain equalization on the first equalization signal to obtain a second equalization signal. According to the invention, through real-time monitoring and dynamic compensation, the influence of channel crosstalk and dispersion distortion is effectively inhibited, and the stability of signal transmission is ensured.

The invention discloses an integrated circuit wiring optimization method and apparatus, and an electronic device. The method comprises the steps of obtaining a target network corresponding to initial wiring data of an integrated circuit; the target network comprises a signal network and a sequential network; constructing a transmission matrix corresponding to the signal network, and converting the transmission matrix into a corresponding scattering parameter; determining a first simulation analysis parameter based on the scattering parameter, the first simulation analysis parameter including insertion loss; determining a buffer pitch based on the insertion loss; and optimizing the initial wiring data based on the buffer spacing to obtain wiring data. Through the Buffer spacing obtained after simulation analysis, wiring data can be optimized more accurately.

The invention relates to a simulation method and device and a storage medium. The method comprises the following steps: acquiring a sample circuit board; the sample circuit board is provided with a transmission line to be tested; scattering parameters of the transmission line to be tested in the sample circuit board are obtained; performing fitting based on the scattering parameters and material parameters of the sample circuit board before preparation to obtain a target simulation model; and inputting material parameters of a target circuit board before preparation into the target simulation model to obtain equivalent parameters of the material parameters after preparation of the target circuit board. Simulation fitting is carried out based on the scattering parameters of the sample circuit board and the material parameters of the sample circuit board before preparation to obtain the target simulation model capable of outputting the equivalent parameters of the material parameters after preparation, so that the equivalent parameters of the material parameters can be quickly obtained based on the target simulation model, and the calculation efficiency is improved. Based on the equivalent parameters, simulation precision of board-level SI, PI and EMC can be improved.

The invention discloses a broadband electromagnetic radiation interference characteristic modeling method for a shielding cable network. The method comprises the following steps: 1) obtaining a scattering parameter matrix of a shielding connector and a transmission parameter matrix of a bent shielding cable; 2) constructing an equivalent N port model of the shielding connector by using the scattering parameter matrix, and deducing a transmission parameter matrix of the shielding connector; 3) establishing a multi-conductor transmission line equation reflecting the distribution of interference current on the shielding cable by using the shielding cable transfer impedance; 4) cascading the transmission parameter matrixes of all the bent shielding cables and the shielding connectors to obtain an overall transmission parameter matrix of the shielding cable network; and 5) solving the multi-conductor transmission line equation in combination with the boundary constraint condition to obtain the common-mode interference current of the shielding layer of the shielding cable, and calculating the electric field radiation of the shielding cable network through the dipole array theory. The method is suitable for uniform and non-uniform shielding cables and shielding cable networks of single-core and multi-core wire harness shielding wire types, and has good universality.

The invention provides a method and device for determining scattering parameters based on deep learning, a medium and a product, and the method comprises the following steps: obtaining to-be-processed scattering parameters obtained through the overall measurement of a to-be-tested device and a test fixture; the scattering parameters to be processed are input into a pre-trained parameter optimization model, a physical constraint framework is introduced when the parameter optimization model is trained to ensure that a prediction result conforms to physical laws such as causality, stability and passivity, and a physical constraint loss function and a frequency adaptive weighting strategy are adopted; obtaining an equivalent model which is output by the parameter optimization model and corresponds to the scattering parameter to be processed; and obtaining a target scattering parameter corresponding to the to-be-processed scattering parameter according to the equivalent model. According to the method, a physical constraint framework is introduced, so that the problem that a traditional 2xthru de-embedding method is in a high-frequency region (especially S11gt; s21), and physical rationality and stability of the result are ensured at the same time.

The invention relates to a signal behavior model conversion method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: acquiring an initial scattering parameter in a frequency domain parameter model, and establishing an equivalent passive circuit model according to the initial scattering parameter; wherein the initial scattering parameter refers to a frequency domain scattering matrix parameter used for describing a signal transmission path; determining direct current point information according to the equivalent passive circuit model, and correcting the initial scattering parameter according to the direct current point information to obtain a corrected scattering parameter; determining corresponding pulse response data according to the corrected scattering parameter, and updating the corrected scattering parameter according to the pulse response data to obtain a target scattering parameter; and generating a target circuit model according to the target scattering parameter. By adopting the method, the conversion precision of the S-parameter-based circuit model can be improved.

The invention discloses an ISAC angular domain energy imaging method and an ISAC angular domain energy imaging system based on actual measurement channel response calibration ray tracing, and mainly solves the problem that an imaging model faces serious channel mismatch and cross-scene generalization limitation due to the fact that simulation data lacks physical consistency constraint in the prior art. According to the scheme, the method comprises the steps that geometric features are extracted from public map data or laser point cloud data, and an ISAC scene environment geometric model is constructed; acquiring an actual measurement channel impulse response containing multipath information by using the communication and sensing integrated equipment; performing path matching on the actual measurement channel impulse response and the ray tracing simulation channel response, inverting environment propagation parameters and correcting scattering parameters; and inputting the calibrated parameters into a ray tracking model, counting energy contribution in each space direction under the condition of a single antenna, obtaining angular domain energy distribution and confidence coefficient, and mapping the angular domain energy distribution and confidence coefficient to a spherical grid to form an imaging result. According to the method, physical mismatch between simulation and real environments is effectively eliminated, low-cost and high-precision angular domain energy imaging and confidence evaluation are realized under the condition of a single antenna, and the method can be used for imaging reconstruction of an ISAC system, environmental perception and generation of a neural network training data set.

The invention relates to the technical field of electromagnetic characterization, in particular to a stable non-iterative electromagnetic parameter characterization method based on a transmission reflection method and a clamp, and the method comprises the steps: S1, loading a to-be-measured medium into a measurement clamp, dividing the measurement clamp into a to-be-measured medium region and an air region, and enabling the two regions to be equivalent to a two-port network; s2, measuring a scattering parameter S of two ports in the two-port network, and converting the scattering parameter S into an ABCD matrix form; s3, calculating an initial ABCD matrix of the to-be-measured medium according to the total ABCD matrix of the measurement clamp and the ABCD matrix of the air section; s4, calibrating the initial ABCD matrix of the to-be-detected medium, eliminating the influence of an air section, and obtaining a final ABCD matrix of the to-be-detected medium; and S5, converting the final ABCD matrix of the to-be-measured medium back to the scattering parameter S. The method is suitable for various magnetic and non-magnetic materials, and is still effective for materials with complex dielectric constant and magnetic conductivity dependent on frequency.

The invention provides a self-adaptive noise source impedance adjustable EMI filtering device and method, and belongs to the field of electromagnetic interference processing. The device comprises an EMI filter, a coupling inductor, a balance winding, a balance impedance, a balance impedance adjusting module and a self-adaptive control module; the coupling inductor, the EMI filter and the balance winding form a six-port network, and the self-adaptive control module is used for converting the six-port network into a four-port network according to scattering parameters of the six-port network, constructing a mixed-mode common-mode parameter matrix, obtaining an initial common-mode reflection coefficient according to the mixed-mode common-mode parameter matrix, and outputting the initial common-mode reflection coefficient. And based on the initial common-mode reflection coefficient and a preset target reflection coefficient, obtaining a balance impedance adjustment direction and a balance impedance adjustment amplitude which meet preset requirements so as to control an impedance adjustment module to dynamically adjust the balance impedance. According to the invention, the balance impedance is optimized and adjusted in real time to cope with the dynamic change working condition of the circuit, and the EMI filtering performance reliability is improved.

The invention relates to the technical field of coal quality detection, in particular to an online detection method and system for the quality of coal as fired. Comprising the following steps: a multi-modal data acquisition step: respectively acquiring a microwave scattering parameter and a surface element characteristic spectrogram through a microwave chromatography sensor array and a surface spectrum detector; a physical field inversion and modeling step: reconstructing a complex dielectric constant distribution diagram based on scattering parameters, and establishing a three-dimensional physical distribution model containing density and moisture; a field-spectrum coupling deduction step: taking the characteristic spectrogram as a boundary constraint, and deducing internal chemical element distribution in combination with the complex dielectric constant distribution diagram; volume weighted quantization: executing volume weighted integration for the three-dimensional physical model and the chemical distribution, and outputting comprehensive coal quality parameters; according to the method, the detection blind area of a single technology is eliminated, and the representativeness and the safety of coal as fired total cross-section detection are remarkably improved.

The invention belongs to the field of electromagnetic compatibility, and discloses a crosstalk equivalent scattering parameter model extraction method and system for a non-uniform cable harness, and the method comprises the steps: obtaining a crosstalk equivalent model of the cable harness through employing a method of carrying out the calculation of crosstalk frequency characteristics, and then extracting scattering parameters. According to the method, the non-uniformity of the cable can be equivalent to the distribution voltage and current source according to the geometric distribution condition of the cable, the inter-line crosstalk value of each point along the cable is quickly and accurately calculated by adopting an iterative algorithm, and the equivalent multi-port scattering parameter model of the cable bundle is extracted; the electromagnetic compatibility simulation system can be used as a part of an electrical system in circuit simulation to carry out system-level electromagnetic compatibility simulation.

The invention discloses an on-chip calibration device parasitic parameter determination and traceability method based on an inversion algorithm, and the method comprises the steps: determining eight error terms through TRL calibration which employs three calibration standard components: a straight-through calibration standard component, a reflection calibration standard component and a transmission line calibration standard component; the method comprises the following steps of: acquiring a relation between error terms in TRL calibration and SOLT calibration according to a signal flow graph, acquiring an expression for extracting a true value of a reflection coefficient of a calibration sheet through inversion according to a 12-item error correction model algorithm, substituting scattering parameters acquired by testing into an error term analytical solution of TRL calibration, solving a TRL calibration error term, and calculating the true value of the reflection coefficient of the calibration sheet according to the error term analytical solution of the TRL calibration. The reflection coefficient truth values of the open circuit and short circuit of the calibration piece and the load piece are extracted; according to the method, the extraction process of the parasitic parameters of the calibration piece is simplified, error sources introduced in the extraction process of the parasitic parameters of the calibration piece are reduced, and the extracted parasitic parameters of the calibration piece have a good effect.

The invention relates to a method and a system for acquiring dissipated power of a radio frequency device and related equipment. The method comprises the following steps: acquiring respective scattering parameters of all circuit elements in a circuit of the radio frequency device; connecting the respective scattering parameters of all the circuit elements to obtain an overall scattering parameter of the radio frequency device; acquiring an incident wave vector of each circuit element; according to the overall scattering parameter and the incident wave vector of each circuit element, acquiring an emergent power vector corresponding to each circuit element; and constructing a transmission matrix based on the corresponding emergent power vector according to the connection relationship among all the circuit elements, and calculating and obtaining the dissipation power of the radio frequency device through the transmission matrix. According to the method, the dissipation power is obtained by taking the scattering parameters as the data source, so that automatic processing is conveniently realized, and the design efficiency of the radio frequency device is favorably improved.

The invention discloses a cable type identification method and device, a storage medium and electronic equipment, and the method is applied to the field of electric power engineering, and comprises the steps: collecting a first scattering parameter of a cable; processing noise in the first scattering parameter to obtain a second scattering parameter; performing feature extraction on the second scattering parameter, and performing dimension reduction processing on the extracted feature information to obtain target feature information; and inputting the target feature information into a target identification model, and identifying the cable type of the cable. Through the cable type identification method and device, the problem that cable types are difficult to accurately identify due to the fact that cable type identification depends on simple signal feature extraction or artificial experience judgment in the prior art is solved.

In some examples, a method for generating a set of slot activation configurations for a holographic radial line slot antenna array comprising multiple slots defining a preconfigured slot pattern, each slot activation configuration defining a beam pattern for a signal to be emitted by the antenna, comprises generating a measure for the mutual coupling between the multiple slots in the presence of a signal to be applied to the antenna, the measure comprising a set of scattering parameters defining a scattering matrix for the antenna, using the measure for the mutual coupling, generating a set of impedance parameters for the array, controlling the resonance of at least one of the multiple slots by regulating a value of capacitance of a variable capacitance device provided across the slot, measuring a value for antenna gain of a beam pattern associated with the value of capacitance, selecting a final value of capacitance resulting in the highest measure of gain for the beam pattern, and selecting a slot activation configuration for the beam pattern on the basis of the selected final value of capacitance.

The invention provides a filter loading phase removing method and device, electronic equipment and a storage medium, and relates to the technical field of filters, and the method comprises the steps: obtaining an initial scattering parameter of a filter; for each initial reflection parameter, obtaining a loading phase corresponding to the initial reflection parameter; constructing a correction matrix based on the loading phase; correcting the initial scattering parameter through the correction matrix to obtain a corresponding de-loading phase scattering parameter; wherein the following steps are executed to obtain a loading phase corresponding to the initial reflection parameter: performing vector fitting on the initial reflection parameter to obtain a first zero-pole set and a second zero-pole set; determining a plurality of target zero poles caused by the loading phase based on the first zero pole set and the second zero pole set; calculating a phase factor based on the plurality of target zero poles; and calculating a corresponding loading phase based on the phase factor.

The invention belongs to the field of power electronic electromagnetic compatibility, and discloses a power converter common-mode conducted interference black box modeling method and system based on impedance parameter on-line identification, which realize on-line identification of common-mode impedance parameters by extracting broadband scattering parameters (S parameters) of a power converter common-mode conducted interference path. And in combination with the impedance parameters and current data measured on line, a common-mode conducted emission black box model of the power converter is constructed. According to the invention, the impedance parameter and the current data can be obtained online, and the characterization precision of the black box model on the common-mode conducted interference characteristic of the power converter is improved.

The invention provides a method and system for detecting electromagnetic compatibility efficiency of a wave-absorbing material and a storage medium, and relates to the technical field of electromagnetic compatibility efficiency detection. The method comprises the following steps: firstly, carrying out first electromagnetic measurement on a target area of the electronic equipment when a wave-absorbing material is not laid to obtain a first near-field scattering parameter set; and carrying out local minimum detection and amplitude and space distribution threshold presetting on the parameter set to screen out problem resonance frequency points. And laying the to-be-measured wave-absorbing material in the target area, and carrying out second electromagnetic measurement according to the same measurement condition to obtain a second near-field scattering parameter set. And comparing the two measurement data, calculating the local variable quantity, the space average suppression degree and the peak suppression ratio of each problem resonance frequency point, and constructing a comprehensive efficiency index on the basis of the local variable quantity, the space average suppression degree and the peak suppression ratio, thereby realizing quantitative evaluation on the overall efficiency and the local hot spot suppression capability of the wave-absorbing material. And finally, judging whether the electromagnetic compatibility efficiency of the material reaches the standard or not according to the space average suppression degree and the comprehensive efficiency index. Accurate evaluation of the electromagnetic compatibility efficiency of the wave-absorbing material is realized.

The invention discloses an on-chip calibration part parasitic parameter extraction method based on a particle swarm algorithm. The method comprises the following steps: calculating a propagation constant of a transmission line to be measured through a TRL, calculating a direct-current resistance and a reflection coefficient of a calibration part to calculate line capacitance of the transmission line to be measured, establishing a calibration part parasitic parameter equivalent circuit model, and calculating a real scattering parameter of the calibration part according to a parasitic parameter; 12 error terms are calculated according to the real scattering parameters of the calibration piece and the scattering parameter measurement values; and setting a target function as a constraint condition to enable the calibration value of the transmission line to be measured to approach the real scattering parameter of the transmission line to be measured, optimizing the parasitic parameter by using a particle swarm algorithm, and outputting a group of optimal parasitic parameters. According to the method, the real scattering parameters of the transmission line are calculated by modeling the transmission line model, and the parasitic parameters are optimized by using the particle swarm optimization to aim at enabling the calibrated transmission line parameters to approach the real values, so that the accuracy of the parasitic parameters of the calibration piece is effectively ensured.

The invention provides a self-adaptive tuning matching and control system of a magnetic resonance radio frequency transmitting coil, and belongs to the technical field of magnetic resonance imaging. The system is composed of a radio frequency transmitting coil, a tuning matching circuit of the radio frequency transmitting coil, an automatic adjusting device, a scattering parameter measuring device, an upper computer interaction module, a PC and a computer processing program. During working, the system only needs to pre-store a group of optimal tuning and matching scattering parameters, after different parts of different human bodies enter the center of the body coil, tuning and matching circuits can be continuously adjusted, changes of the scattering parameters in the adjusting process are collected in real time, and the rotating direction of a tuning strip matching motor can be automatically judged; and the accurate tuning frequency and the optimal matching state are quickly obtained, so that the optimal transmitting efficiency is achieved.

The invention provides a near-field scanning rapid imaging device for the radio frequency performance of a multi-channel electrically tunable base station antenna, and relates to the technical field of radio frequency antenna testing, the device comprises a scanning assembly and a data processing module, the scanning assembly is composed of a radio frequency probe installed on a two-dimensional precision displacement platform and a vector network analyzer connected with the radio frequency probe, and the data processing module is connected with the scanning assembly. The scanning module is used for performing point-by-point scanning in an antenna near-field area along a preset plane grid path and collecting scattering parameters representing electromagnetic field characteristics at sampling points to form a near-field scanning data set; and the data processing module receives the data set, executes fast Fourier transform operation, and converts near-field data into far-field radiation characteristics so as to generate a far-field radiation pattern representing the radio frequency performance of the antenna. And the data processing module applies a preset static compensation matrix to the near-field data before conversion, so that the mutual coupling effect between the probe and the antenna is inhibited, and the accuracy of a measurement result is improved.

The invention provides an admittance test method of a resonator and the resonator, and the test method comprises the following steps: obtaining a scattering parameter matrix file of the resonator to be tested; constructing a principle circuit of a real resonator according to the scattering parameter matrix file; a parasitic effect is added to the real resonator; deriving according to the principle circuit to obtain an equation of scattering parameters of a real resonator; and calculating the admittance parameter of the real resonator through the equation so as to design the real resonator. The admittance test method of the resonator is low in cost and can obtain more accurate admittance parameters.

The invention discloses a data optimization method and system and a computing device cluster. After the data optimization system receives the physical attribute parameters of the passive device, feature extraction is carried out on the physical attribute parameters of the passive device, and poles, residuals and constant terms forming a scattering parameter frequency response curve of the passive device are obtained. The data optimization system calculates a scattering parameter frequency response curve of the passive device according to different frequencies, poles, residuals and constant terms in a set frequency range, performs passivity correction on the scattering parameter frequency response curve of the passive device, filters abnormal values in the scattering parameter frequency response curve of the passive device, or corrects the abnormal values, and finally performs passive correction on the scattering parameter frequency response curve of the passive device. And the curve is smoother. The scattering parameter of the scattering parameter frequency response curve of the passive device output by the data optimization system meets the physical property constraint. A designer selects the most suitable passive device for the radio frequency circuit based on the performance parameters of the passive device meeting the physical property constraint, so that the performance of the designed and developed radio frequency circuit is optimal.

The invention discloses a method for rapidly evaluating an S parameter of a multi-layer PCB port in a multi-stage waveguide structure, and the method comprises the steps: decomposing a system into a plurality of mutually independent subsystems, representing a propagation channel of electromagnetic energy as a signal pipeline, and representing a reflection position of the energy as a reflection node, thereby building a signal energy flow diagram of the system. On the basis, scattering parameters of the subsystems are obtained through a numerical simulation method, and a corrected BLT equation capable of representing the electromagnetic field-circuit bidirectional coupling relation between the subsystems is deduced in combination with propagation equations of all signal pipelines and scattering equations of all reflection nodes of the system; and the S parameter of the multi-layer PCB port in the multi-stage waveguide structure can be obtained by solving the equation. The method has the advantages of being simple in algorithm, accurate in result, high in efficiency and the like, is suitable for a multi-stage waveguide structure of any geometrical shape, and can achieve rapid evaluation and analysis of the electromagnetic coupling effect in electronic equipment with a waveguide-shaped shielding structure in a complex electromagnetic environment.

The present invention discloses an electromagnetic property measurement device and system and an electromagnetic property measurement method, wherein the electromagnetic property measurement device comprises a magnetic conductive structure, a coil and a scattering parameter measuring device. The magnetic conductive structure comprises a first side facing a sample to be measured and a second side relative to the first side, wherein the first side has a magnetic gap. The coil surrounds the magnetic conductive structure to generate a magnetic field with the magnetic conductive structure. The scattering parameter measuring device is arranged on the first side and is located within the range of the magnetic field.

The present application belongs to the technical field of stealth design of aircraft shape and structure, and discloses a surface wave electromagnetic scattering characteristic quantitative analysis method based on a two-port transmission model. The surface wave electromagnetic scattering characteristic quantitative analysis method based on the two-port surface wave transmission model has an electromagnetic discontinuous structure. By loading the electromagnetic discontinuous structure, the scattering parameters of the port network are monitored, and by changing the structural parameters of the electromagnetic discontinuous structure, the influence of the structural parameters of the electromagnetic discontinuous structure on the surface wave scattering characteristic is quantitatively studied. The surface wave electromagnetic scattering characteristic quantitative analysis method can separate the spatial electromagnetic scattering component when the spatial electromagnetic wave is directly irradiated, and can analyze the electromagnetic scattering characteristic of the surface wave in the discontinuous electromagnetic structure alone, thereby laying a foundation for studying the surface wave electromagnetic scattering characteristic of the electromagnetic discontinuous structure such as a curved surface, a gap and a step, and providing guidance for the stealth design of the aircraft shape and structure.