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1. 发明授权

US10074893B2 Device used to reduce electromagnetic radiations 有权
公开(公告)号：US10074893B2
公开(公告)日：2018-09-11
申请号：US15033651
申请日：2015-02-09
申请人： SRIHITHA SHOPPING SERVICES PVT. LTD
发明人： Ravi Sasank , Kishore Kumar Reddy G
IPC分类号： H01Q1/24 , A61N1/16 , H05K9/00 , H01Q15/00 , H01Q1/48 , H01Q1/50 , H01Q17/00
CPC分类号： H01Q1/245 , A61N1/16 , H01Q1/243 , H01Q1/48 , H01Q1/50 , H01Q15/0026 , H01Q17/002 , H05K9/0064 , H05K9/0081 , H05K9/0088
摘要： Exemplary embodiments of the present subject matter is directed towards a device used to reduce electromagnetic radiations comprising a electromagnetic resistance sheet including a first layer and a third layer positioned at front and rear portions of the electromagnetic resistance metallic sheet configured to convert received excess radio frequency radiations of electronic signals to electromagnetic field signals and ground the converted electromagnetic field; and cloud signals for avoiding the transmission of radiations into the human body and environment. The first layer and the third layer coated with plurality of chemical elements. The electromagnetic resistance sheet also includes a second layer positioned between the first layer and the third layer coated with plurality of metallic elements to provide anti corrosion of the electromagnetic resistance sheet in the transmission of radiations.

2. 发明授权

US09929475B2 Waveband electromagnetic wave absorber and method for manufacturing same 有权
公开(公告)号：US09929475B2
公开(公告)日：2018-03-27
申请号：US13697043
申请日：2011-05-09
申请人： Sang-Kwan Lee , Sang-Bok Lee , Ki Hyeon Kim , Yong-Ho Choa , Sung-Tag Oh
发明人： Sang-Kwan Lee , Sang-Bok Lee , Ki Hyeon Kim , Yong-Ho Choa , Sung-Tag Oh
IPC分类号： H01Q17/00 , H05K9/00
CPC分类号： H01Q17/004 , H01Q17/002 , H05K9/0083 , H05K9/0086 , Y10T29/49117
摘要： Provided is a wideband electromagnetic wave (EMW) absorber including a magnetic composite having a structure in which magnetic particles are dispersed in a polymer resin, and a plurality of conductive lines arranged in the magnetic composite, and a method of manufacturing the same. The wideband EMW absorber can be used for a device configured to emit EMWs and effectively absorb wideband EMWs.

3. 发明授权

US09847583B1 Deflective electromagnetic shielding 有权
公开(公告)号：US09847583B1
公开(公告)日：2017-12-19
申请号：US14853298
申请日：2015-09-14
申请人： Fractal Antenna Systems, Inc.
发明人： Nathan Cohen
IPC分类号： H01Q15/00 , H01Q17/00
CPC分类号： H01Q15/0086 , F41H3/00 , G02B5/008 , H01Q17/00 , H01Q17/002
摘要： Systems according to the present disclosure provide one or more surfaces that function as power transferring surfaces for which at least a portion of the surface includes or is composed of “fractal cells” placed sufficiently closed close together to one another so that a surface (plasmonic) wave causes near replication of current present in one fractal cell in an adjacent fractal cell. A fractal of such a fractal cell can be of any suitable fractal shape and may have two or more iterations. The fractal cells may lie on a flat or curved sheet or layer and be composed in layers for wide bandwidth or multibandwidth transmission.

4. 发明申请

US20170357139A1 APPARATUS AND METHOD FOR PROVIDING A SELECTIVELY ABSORBING STRUCTURE 审中-公开
公开(公告)号：US20170357139A1
公开(公告)日：2017-12-14
申请号：US15422744
申请日：2017-02-02
申请人： Duke University
发明人： David R. Smith , Antoine Moreau , Cristian Ciraci , Jack J. Mock
IPC分类号： G02F1/17 , G02F1/35 , G02F1/01 , H01Q17/00 , B82Y20/00
CPC分类号： G02F1/17 , B82Y20/00 , G02F1/0102 , G02F1/0128 , G02F1/35 , G02F2001/3505 , H01Q17/002 , H01Q17/007 , Y10S977/834 , Y10S977/89 , Y10S977/902
摘要： An apparatus is described that selectively absorbs electromagnetic radiation. The apparatus includes a conducting surface, a dielectric layer formed on the conducting surface, and a plurality of conducting particles distributed on the dielectric layer. The dielectric layer can be formed from a material and a thickness selected to yield a specific absorption spectrum. Alternatively, the thickness or dielectric value of the material can change in response to an external stimulus, thereby changing the absorption spectrum.

5. 发明申请

US20160254600A1 ELECTROMAGNETIC FIELD ABSORBING COMPOSITION 审中-公开
标题翻译：电磁场吸收组合物
公开(公告)号：US20160254600A1
公开(公告)日：2016-09-01
申请号：US15028194
申请日：2014-10-08
申请人： QINETIQ LIMITED
发明人： Greg Peter Wade FIXTER , Shahid HUSSAIN , Alexandra Frances PATERSON
IPC分类号： H01Q17/00 , H01F1/01
CPC分类号： H01Q17/002 , H01F1/01 , H05K9/0075
摘要： An electromagnetic radiation absorbing composition is described, comprising a magnetic filler material taking the form of a metallic flake, and a non-conductive binder, wherein the magnetic filler is present in the range of from 1 to 5 volume % of dried volume. The use of a magnetic filler material according to embodiments of the invention is able to provide relatively narrow-band attenuation spectra with good repeatability. The strong coupling that can be achieved between flakes in a flaked filler give desirable polarisation and magnetic properties, while maintaining a relatively low filling fraction. Embodiments may incorporate a flake comprising a permalloy, and of an average size in the range 1 to 100 microns.
摘要翻译：描述了一种电磁辐射吸收组合物，其包括呈金属薄片形式的磁性填充材料和非导电粘合剂，其中磁性填料以干燥体积的1至5体积％的范围存在。使用根据本发明的实施方案的磁性填充材料能够提供具有良好重复性的相对窄带衰减谱。在片状填充物中的薄片之间可以实现的强耦合在保持较低的填充率的同时产生理想的极化和磁性。实施方案可以包含包含坡莫合金的片状物，其平均尺寸范围为1至100微米。

6. 发明授权

US09263802B2 Electromagnetic wave absorber 有权
标题翻译：电磁波吸收器
公开(公告)号：US09263802B2
公开(公告)日：2016-02-16
申请号：US13937655
申请日：2013-07-09
申请人： KABUSHIKI KAISHA RIKEN
发明人： Keita Hirose
IPC分类号： H01Q17/00 , H05K9/00
CPC分类号： H01Q17/008 , H01Q17/002 , H05K9/0052
摘要： An electromagnetic wave absorber includes a rectangular plate-shaped part having a surface including a flat space at a center of the plate-shaped part and a plurality of oblong rectangular spaces, surrounding the flat space, on each of which at least one pyramidal or wedge-shaped part having an oblong rectangular bottom face is provided, and the plurality of oblong rectangular spaces of the surface of the plate-shaped part are arranged along inside a perimeter of the plate-shaped part so that a longer side of any one of the plurality of oblong rectangular spaces is adjoining with a shorter side of another of the plurality of oblong rectangular spaces adjacent thereto while leaving the flat space at the center of the plate-shaped part.
摘要翻译：一种电磁波吸收体包括矩形板状部分，该矩形板状部分具有在该板状部分的中心处具有平坦空间的表面和围绕平坦空间的多个长方形的矩形空间，其中至少一个金字塔形或楔形提供具有长方形矩形底面的成形部分，并且板状部分的表面的多个长方形的矩形空间沿着板状部分的周边布置，使得任何一个的长边多个长方形的矩形空间与多个与其相邻的多个长方形矩形空间中的另一个的短边相邻，同时将平坦空间留在板状部分的中心。

7. 发明授权

US09134465B1 Deflective electromagnetic shielding 有权
标题翻译：反射电磁屏蔽
公开(公告)号：US09134465B1
公开(公告)日：2015-09-15
申请号：US14071235
申请日：2013-11-04
申请人： Nathan Cohen
发明人： Nathan Cohen
IPC分类号： H01Q17/00 , G02B5/00 , F41H3/00
CPC分类号： H01Q15/0086 , F41H3/00 , G02B5/008 , H01Q17/00 , H01Q17/002
摘要： Systems according to the present disclosure provide one or more surfaces or structures that function as power transferring surfaces or structures (deflective shields) for which at least a portion of which includes or is composed of “fractal cells” placed sufficiently closed close together to one another so that a surface (plasmonic) wave causes near or similar replication of current present in one fractal cell in an adjacent fractal cell. A fractal of such a fractal cell can be of any suitable fractal shape and may have two or more iterations. The fractal cells may lie on a flat or curved sheet or layer and be composed in layers for wide bandwidth or multibandwidth transmission. The surfaces and/or structures can also provide cloaking of objects inside the shields.
摘要翻译：根据本公开的系统提供一个或多个表面或结构，其用作动力传递表面或结构（偏转屏蔽），其至少一部分包括或由其彼此相邻放置的“分形细胞”构成使得表面（等离子体激元）波导致在相邻分形细胞中的一个分形细胞中存在的电流的近似或相似的复制。这种分形细胞的分形可以是任何合适的分形形状，并且可以具有两个或多个迭代。分形细胞可以位于平坦或弯曲的片层或层上，并且被分层组成以用于宽带宽或多带宽传输。表面和/或结构还可以在屏蔽内部提供物体的隐藏。

8. 发明申请

US20150042502A1 ELECTROMAGNETIC RADIATION ATTENUATOR 审中-公开
标题翻译：电磁辐射衰减器
公开(公告)号：US20150042502A1
公开(公告)日：2015-02-12
申请号：US14388378
申请日：2013-03-26
申请人： MICROMAG 2000, S.L.
发明人： Ainhoa Gorriti González , Daniel Cortina Blanco , María De La Sierra Flores , Javier Calvo Robledo , Juan José Gómez Robledo , Pilar Marín Palacios , Antonio Hernando Grande
IPC分类号： H01Q17/00
CPC分类号： H01Q17/00 , H01Q17/002
摘要： The invention relates to a material configured such as to include a plurality of layers, some layers being made of a composite material and some layers being made of a dielectric material. The layers of composite material include a mixture of host dielectric material and inclusions, such that said inclusions are embedded in the structure of the host dielectric material. Said inclusions preferably include highly conductive fibres, specifically metal microwires. Thus, the structure of the material according to the invention includes a plurality of layers, some layers being made of a composite material, which includes a host dielectric material with inclusions, and some layers being made of a dielectric material. The structure of the material according to the invention is designed so that the surface on which said material is applied is capable of absorbing a portion of the incident electromagnetic radiation, thus substantially reducing the electromagnetic radiation reflected by same curved.
摘要翻译：本发明涉及一种被配置为包括多个层的材料，一些层由复合材料制成，一些层由电介质材料制成。复合材料层包括主体电介质材料和夹杂物的混合物，使得所述夹杂物嵌入主电介质材料的结构中。所述夹杂物优选包括高导电性纤维，特别是金属微丝。因此，根据本发明的材料的结构包括多个层，一些层由复合材料制成，其包括具有夹杂物的主体电介质材料，并且一些层由电介质材料制成。根据本发明的材料的结构被设计成使得其上施加有所述材料的表面能够吸收入射的电磁辐射的一部分，从而基本上减少由相同弯曲部反射的电磁辐射。

9. 发明申请

US20140246608A1 WAVE-ABSORBING METAMATERIAL 有权
标题翻译：吸波元件
公开(公告)号：US20140246608A1
公开(公告)日：2014-09-04
申请号：US14009023
申请日：2011-11-30
申请人： Ruopeng Liu , Lin Luan , Zhiya Zhao , Wenjian Wang
发明人： Ruopeng Liu , Lin Luan , Zhiya Zhao , Wenjian Wang
IPC分类号： G21F1/08
CPC分类号： G21F1/08 , H01Q17/00 , H01Q17/002 , H05K9/0086
摘要： The present invention relates to a wave-absorbing metamaterial, comprising a substrate which is provided with two opposite lateral surfaces, wherein a plurality of periodically arranged artificial metal microstructures are attached on at least one of the two opposite lateral surfaces; when an electromagnetic wave having an incident direction vertical to the two opposite lateral surfaces of the substrate is transmitted to the wave-absorbing metamaterial, a relative permittivity of the metamaterial is substantially equal to a relative magnetic conductivity of the metamaterial. A wave-absorbing principle different from that of a conventional wave-absorbing material is employed on the wave-absorbing metamaterial; an ideal wave-absorbing effect is achieved by periodically arranging various artificial metal microstructures on the substrate and adjusting the artificial metal microstructures; and the wave-absorbing metamaterial has the advantages of minor weight, small thickness and simply adjustable electromagnetic parameters.
摘要翻译：吸波超材料本发明涉及一种吸波超材料，其包括具有两个相对的侧表面的基底，其中多个周期性布置的人造金属微结构附着在两个相对的侧表面中的至少一个上; 当具有垂直于基板的两个相对侧表面的入射方向的电磁波被传送到吸波超材料时，超材料的相对介电常数基本上等于超材料的相对磁导率。在吸波超材料上采用与传统吸波材料不同的波吸收原理; 通过在基板上周期性地布置各种人造金属微观结构并调整人造金属微观结构，实现理想的波浪吸收效果; 吸波材料具有重量轻，厚度小，电磁参数简单等优点。

10. 发明申请

US20140132440A1 ELECTROMAGNETIC WAVE ABSORBER 有权
标题翻译：电磁波吸收器
公开(公告)号：US20140132440A1
公开(公告)日：2014-05-15
申请号：US13937655
申请日：2013-07-09
申请人： KABUSHIKI KAISHA RIKEN
发明人： Keita HIROSE
IPC分类号： H01Q17/00
CPC分类号： H01Q17/008 , H01Q17/002 , H05K9/0052
摘要： An electromagnetic wave absorber includes a rectangular plate-shaped part having a surface including a flat space at a center of the plate-shaped part and a plurality of oblong rectangular spaces, surrounding the flat space, on each of which at least one pyramidal or wedge-shaped part having an oblong rectangular bottom face is provided, and the plurality of oblong rectangular spaces of the surface of the plate-shaped part are arranged along inside a perimeter of the plate-shaped part so that a longer side of any one of the plurality of oblong rectangular spaces is adjoining with a shorter side of another of the plurality of oblong rectangular spaces adjacent thereto while leaving the flat space at the center of the plate-shaped part.
摘要翻译：一种电磁波吸收体包括矩形板状部分，该矩形板状部分具有在该板状部分的中心处具有平坦空间的表面和围绕平坦空间的多个长方形的矩形空间，其中至少一个金字塔形或楔形提供具有长方形矩形底面的成形部分，并且板状部分的表面的多个长方形的矩形空间沿着板状部分的周边布置，使得任何一个的长边多个长方形的矩形空间与多个与其相邻的多个长方形矩形空间中的另一个的短边相邻，同时将平坦空间留在板状部分的中心。

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