The Double-Layer Matching Design of Broad-Band Foam Cement Absorbing Panel for Electromagnetic Pollution Control

Wu, Fan; Wan, Hao; Zhang, Yue Fang; Wang, Ming Ming; Chen, Dong Wei; Yi, Ying Ying; Zhao, Hui; Dong, Yi; Yu, Xue Hong

doi:10.4028/www.scientific.net/amm.401-403.924

Cited by 5 publications

(4 citation statements)

References 3 publications

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“…The authors demonstrated that the absorber they created was characterised by reflection losses below −10 dB in the frequency range of 8-18 GHz. The good properties of a layered resistive coating/absorbing layer/reflecting layer system were demonstrated in study [62]. The absorber layers, each 1.4 cm thick, were joined together using commercial adhesives.…”

Section: Figurementioning

confidence: 96%

A Systematic Review of HPM Energy Absorbers for Building Applications

et al. 2021

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A modern weapon, high power microwave (HPM) pulses, can have a profound effect on the quality of functioning of society as the use of this weapon can result in damage to or destruction of electronic equipment and computer and telecommunications systems, both military and civilian. Protection against the energy of HPM pulses can be achieved in two basic ways: by using radiation-absorbent materials (RAM) or artificial electromagnetic (EM) structures. If the object to be protected is a building, protection based on RAM is used. Hence, this literature review focuses on the possibilities of using HPM energy absorbers in building products and structures. Attention is concentrated on four basic types of elements: claddings, concrete and mortar, small-sized elements (bricks, hollow masonry units), and paint coatings. In each of the categories, examples of HPM radiation absorbers having a high potential to be combined with basic construction materials are given on the basis of the literature on the subject.

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Section: Figurementioning

confidence: 96%

A Systematic Review of HPM Energy Absorbers for Building Applications

et al. 2021

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“…By and large, λ/4 type composite gypsum absorber had better absorption. What's more, it was not very ideal and was improved in further researches for its complexity of radiation protection in S band [11].…”

Section: Comparison Of λ/4 Type's Absorption Between the Theory And E...mentioning

confidence: 99%

The Design and Preparation of Composite Gypsum Boards Absorber Based on Phase Modulation Membrane

Wan

Zhao

et al. 2014

AMR

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According to the principle of electromagnetic wave absorption, functionally reforming thermal insulating materials for building, through designing and theoretically simulating of the λ/4 model, the article has successfully prepared EPS composite gypsum boards for electromagnetic wave absorption. The result shows that, a maximum absorption of-18.7dB at 3GHz and 85% of bandwidth below-10dB was achieved under following conditions: using 380Ω/□ resistive film, specimen thickness of 1.50cm. However, by using phase modulation membrane (PMM),it achieved a maximum absorption of-20dB and 100% of bandwidth below-10dB. This new composite materials can be used for electromagnetic interference protection for WLAN and indoor electromagnetic radiation pollution control.

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“…The rapid development of the information society has brought great popularity of electronic devices, high-frequency electromagnetic radiation pollution has become increasingly serious by this, which interferes with the normal operation of a variety of electronic devices and brings hazards on human health [1,2,3].Using anti-electromagnetic radiation materials, especially electromagnetic wave absorbing protection materials, are effective methods of electromagnetic radiation protection [4,5].As λ/4 type dielectric absorber has a simple and practical nature, this article ,based on transmission line theory in the 2-18GHz, studies electromagnetic parameters' impact on absorbing properties when the permittivity is basically stable, which provides structural parameters' modulation and forecast from theoretical basis for the preparation of high-performance absorbing material [6,7].…”

Section: Introductionmentioning

confidence: 99%

The Electromagnetic Parameters' Impact of λ/4 Type Dielectric Absorber on Absorbing Properties

Zhao

Wan

et al. 2014

AMM

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This paper studies electromagnetic parameters' impact of λ/4 type dielectric absorber on absorbing properties. Calculation shows that the maximum absorption amount is corresponding to specific values of K and R when absorber's permittivity is stable, when the thickness of material is determined and the real part permittivity is increased, the absorption peaks move to lower frequency and reduce the distance between adjacent peaks, while the imaginary part of permittivity and resistance of membrane resistance only affect absorption peaks' amount but have no effect on the peaks' position. Accordingly, it is reasonable to adjust the material's electromagnetic parameters according to the above rule when the high-performance λ/4 dielectric-type absorber is prepared.

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The Double-Layer Matching Design of Broad-Band Foam Cement Absorbing Panel for Electromagnetic Pollution Control

Cited by 5 publications

References 3 publications

A Systematic Review of HPM Energy Absorbers for Building Applications

A Systematic Review of HPM Energy Absorbers for Building Applications

The Design and Preparation of Composite Gypsum Boards Absorber Based on Phase Modulation Membrane

The Electromagnetic Parameters' Impact of λ/4 Type Dielectric Absorber on Absorbing Properties

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