A Metal Grid Structure Based on Randomly Distributed Rings and Its Design Method

Abstract

A metal grid structure based on randomly distributed rings and its design method belong to the field of electromagnetic shielding of optical transparent parts. Composition, the center and radius of the basic random ring are random, and the number, diameter and arrangement angle of sub-rings in different basic rings are randomly generated. The metal grid with a certain line width obtained by the randomly distributed ring structure through processing technology averages the depth of the high-order diffraction, so that the energy distribution of the high-order diffraction is uniform, and the maximum high-order diffraction energy is reduced. At the same time, because the structure integrates multi-period rings and sub-rings, and has the random characteristics of distribution and parameters, it improves the light transmittance while maintaining a relatively uniform distribution of the grid pore structure, and homogenizes the distribution of diffracted stray light. It can ensure that its electromagnetic shielding ability is almost unaffected, further improves the comprehensive performance of the metal mesh grid, and expands its application field.

Description

A metal grid structure based on randomly distributed rings and its design method technical field The invention belongs to the field of electromagnetic shielding of optical transparent parts, particularly a kind of metal mesh based on random distribution ring Gate structure and design method thereof. Background technique With people's continuous excavation and in-depth research in the field of electromagnetic waves, electromagnetic waves are closely related to people's lives in various fields. related fields have been more and more widely used, such as various electronic instruments and communication equipment in the aerospace field, optical Instruments and equipment, etc., the application of electromagnetic waves has gradually shown two obvious trends. The ever-increasing range of electromagnetic waves in various fields and the widening of electromagnetic wave application bands in various fields make the electromagnetic environment in space increasingly complex. Th...

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Problems solved by technology

[0014] The purpose of the present invention is to overcome the deficiencies of the above-mentioned existing grid structure, especially for the problem of relatively concentrated distribution of stray light caused by high-order diffraction in the existing grid, and the defects of random grids, and proposes an integrated Multi-period rings and sub-rings, and a grid with ring distribution and random structure parameters, can improve the light transmittance while maintaining a relatively uniform distribution of the grid pore structure, while homogenizing the distribution of diffracted stray light, it can also Ensure that its electromagnetic shielding ability is almost unaffected, further improve the comprehensive performance of the metal grid, and expand its application field

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