A Discrete Slab Absorber: Absorption Efficiency and Theory Analysis

Duan, Yuping; Liu, Shunhua; Wen, Bin; Guan, Hongtao; Wang, Guiqin

doi:10.1177/0021998306060174

Cited by 36 publications

(12 citation statements)

References 13 publications

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“…The authors of [35] showed that the absorptive properties of slab absorbers could be improved by randomly distributing carbon black (CB) inclusions in them. Experimental results confirmed the significant improvement of the absorptive properties of such slabs (in a wide range of frequencies) in comparison with conventional absorbing slabs (not containing CB inclusions).…”

Section: Graphite Content By Volume (%)mentioning

confidence: 99%

Methods of Protecting Buildings against HPM Radiation—A Review of Materials Absorbing the Energy of Electromagnetic Waves

et al. 2020

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The pulsed high power microwave (HPM) technology has been developed worldwide for over 20 years. The sources of HPM pulses are a weapon of mass destruction. They pose danger especially to computer and telecommunications equipment and systems, both the military and civilian ones. This paper presents a survey of literature on electromagnetic wave radiation absorbing and shielding materials to be used in construction. Relevant protective measures should include the shielding of buildings or their parts and the absorption of radiation by building envelopes and their elements. The main focus is on the possibilities of improving the shielding and absorptive properties of common construction materials, such as concrete, mortars and synthetic resins. The survey covers the following groups of materials: carbon-based admixtures, nickel powder, iron powders, ferrites, magnetite and polymers. The final part of the survey is devoted to hybrid foam microwave absorbers in which the shape of the material’s inner structure and that of its surface play a special role.

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Section: Graphite Content By Volume (%)mentioning

confidence: 99%

Methods of Protecting Buildings against HPM Radiation—A Review of Materials Absorbing the Energy of Electromagnetic Waves

et al. 2020

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“…According to literature (Duan et al 2006), the attenuation of the incident wave can be expressed approximately as…”

Section: Theory Analysismentioning

confidence: 99%

A new absorbing foam concrete: preparation and microwave absorbing properties

Lv¹,

Cao²,

Li³

et al. 2015

Advances in concrete construction

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The foam concrete was fabricated by adding the foaming agent which composite ordinary Portland cement with plant and animal protein into cement paste, and the electromagnetic wave absorption properties were studied for the first time as well. The studies showed that the electromagnetic waves can be absorbed by multiple reflections and scattering within the porous material. Thickness and filling ratio have a great influence on the electromagnetic wave absorbing properties in 2-18 GHz of the foam concrete, the greater the thickness, the better the performance of absorption; filling ratio was about 52 vol.%, the absorbing properties achieved the best.

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“…While attempts at discretizing continuous MAMs have been made, efficiently expanding bandwidth, achieving optimal outcomes has remained challenging. [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29] The advent of metamaterial absorbers (MMAs), initiated by Landy's perfect MMA in 2008, 30 introduced a new avenue. Early metal-based MMAs relied on single-order resonance of subwavelength structures, displaying narrowband performances.…”

Section: Introductionmentioning

confidence: 99%