Strong electromagnetic shielding optical window based on graphene/dual-layer metal mesh laminated structure
A double-layer metal, laminated structure technology, applied in the fields of magnetic field/electric field shielding, metal layered products, glass/slag layered products, etc., can solve the problem of high light transmittance and strong microwave shielding efficiency, transparency and conductivity. Mutual constraints on shielding capabilities, electromagnetic leakage of reflected electromagnetic signals, etc., to achieve the effects of light transmission characteristics, microwave shielding efficiency and reflectivity improvement, and low electromagnetic reflection
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[0044] The electromagnetic shielding light window is composed of a transparent absorption layer 3, a transparent medium A4, a metal grid A5, a transparent medium B6 and a metal grid B7 that are sequentially overlapped and arranged in parallel; the transparent absorption layer 3 is composed of a single layer arranged in parallel in sequence The graphene film A10, the transparent medium C11 and the single-layer graphene film B12 are composed, and the metal grid A5 and the metal grid B7 arranged in parallel form a transparent reflective layer.
[0045] The technical effect of the present invention is: when the shielding efficiency of the double-layer metal grid is 29.8dB, the electromagnetic shielding efficiency of the present invention is 33.4dB, and the absorption loss accounts for 60.1% of the total shielding energy, realizing a strong electromagnetic shielding based on absorption , and the light transmittance is 90.4%, still has high light transmittance characteristics. Using...
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