An electromagnetic shielding structure based on double-layer cut-off circular waveguide array metal mesh/film

A technology of electromagnetic shielding structure and metal structure, applied in the direction of magnetic/electric field shielding, electrical components, etc., can solve the problems of high-power microwave limitation, difficulty in light weight, thick thickness, etc., to achieve effective electromagnetic protection, weight reduction, and wide frequency bandwidth Effect
CN105072880BActive Publication Date: 2018-03-13EAST CHINA NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
EAST CHINA NORMAL UNIV
Publication Date
2018-03-13

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Abstract

The invention discloses an electromagnetic shielding structure based on double-layer cut-off circular waveguide array metal mesh / film, comprising: cut-off circular waveguide unit and cut-off circular waveguide array metal structure; wherein, the cut-off circular waveguide array metal structure is composed of a first cut-off circular waveguide array metal structure. The circular waveguide array metal mesh and the second cutoff circular waveguide array metal mesh are formed, or the first cutoff circular waveguide array metal mesh and the metal film are formed; the cutoff circular waveguide unit is arranged on the first cutoff circular waveguide array metal mesh and the first cutoff circular waveguide array metal mesh. The second cut-off circular waveguide array metal mesh; the cut-off circular waveguide units on the first cut-off circular waveguide array metal mesh and the second cut-off circular waveguide array metal mesh are arranged in the same position or dislocation. When the high-power microwave is irradiated, the electromagnetic shielding structure based on the double-layer cut-off circular waveguide array metal mesh / film can greatly attenuate the incident power. The invention has the advantages of low cost, light weight, wide frequency band and high shielding efficiency.
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Description

technical field

[0001] The invention relates to the technical field of high-power microwave electromagnetic protection, in particular to an electromagnetic shielding structure based on a double-layer cut-off circular waveguide array metal mesh / film. Background technique

[0002] High-Power Microwave (HPM) is a microwave electromagnetic pulse with a peak power greater than 100MW, which is mainly used in directed energy electromagnetic weapons of electronic warfare. Its working principle is to use a high-gain directional antenna to radiate high-power microwave energy generated by a high-power microwave source, and irradiate the target with high intensity to achieve the purpose of killing enemy personnel and destroying electronic equipment. The damage and destruction of electronic and circuit systems by high-power microwaves is mainly divided into three stages: collection, coupling and damage. High-power microwaves couple high-power microwave energy into the system, and couple...

Claims

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