step 1, inputting model parameters and simulation parameters of the wire mesh;

step 2, obtaining coordinate points of a minimum repeating unit of the wire mesh, and determining a minimum repeating unit curve P₀₀ of the minimum repeating unit, comprising:

step 2.1, deriving coordinate points A₁ of a single inclined coil of the wire mesh according to the model parameters in the step 1;

step 2.2, obtaining the coordinate points of the minimum repeating unit of the wire mesh according to the coordinate points A₁ of the single inclined coil obtained in the step 2.1 and an organization structure P of the wire mesh of the model parameters in the step 1; and

step 2.3, solving the minimum repeating unit curve P₀₀ of the wire mesh according to the coordinate points of the minimum repeating unit obtained in the step 2.2;

step 3, performing vector superposition on the minimum repeating unit curve P₀₀ obtained in the step 2 to obtain an organization structure curve P of the organization structure of the wire mesh;

step 4, discretizing the organization structure curve P of the organization structure of the wire mesh obtained in the step 3, to extract a coordinate point elec_node of an electromagnetic analysis periodic unit of the wire mesh;

wherein the step 4 specifically comprises:

step 4.1, assuming that a left boundary of the electromagnetic analysis periodic unit of the wire mesh is X₁ and a lower boundary of the electromagnetic analysis periodic unit of the wire mesh is y₁, and determining a right boundary X₂ of the electromagnetic analysis periodic unit and an upper boundary y₂ of the electromagnetic analysis periodic unit by formulas 4.1 and 4.2:

step 4.2, discretizing the organization structure curve P of the organization structure of the wire mesh to obtain a coordinate point node for describing the organization structure of the wire mesh, and determining, based on the coordinate point node, the coordinate point elec_node of the electromagnetic analysis periodic unit of the wire mesh by a formula 4.3:

step 5, establishing, based on the coordinate point elec_node of the electromagnetic analysis periodic unit of the wire mesh obtained in the step 4, a solid model of the electromagnetic analysis periodic unit of the wire mesh, and obtaining a reflection coefficient S11 and a transmission coefficient S21 of the wire mesh by analyzing the solid model; and

step 6, determining a reflection coefficient S11 and a transmission coefficient S21 of the wire mesh after deformation, comprising:

step 6.1, based on the coordinate point node for describing the organization structure of the wire mesh described in the step 4, using an ANSYS software to: use a beam element of Beam188 to simulate the wire mesh, define a shape and a size of a section of the beam element, and establish a finite element model of the wire mesh by using a BSPLIN command, set a contact type of the wire mesh as adhesive contact, apply a boundary condition and a load to the wire mesh and perform static analysis on the wire mesh, to thereby obtain a coordinate point deformtion_node for describing an organization structure of the wire mesh after deformation; and

step 6.2, repeating the steps 4 and 5 based on the coordinate point deformtion_node for describing an organization structure of the wire mesh after deformation obtained in the step 6.1, to obtain a solid model of an electromagnetic analysis periodic unit of the wire mesh after deformation, and the reflection coefficient S11 and the transmission coefficient S21 of the wire mesh after deformation.