公开(公告)号：US20190140357A1

公开(公告)日：2019-05-09

申请号：US16026685

申请日：2018-07-03

申请人： The Johns Hopkins University

发明人： Kenneth R. Grossman ,  Joseph A. Miragliotta ,  Adam J. Maisano ,  Douglas B. Trigg ,  Steven M. Storck

IPC分类号： H01Q15/00 ,  H01Q1/52 ,  H01Q17/00

CPC分类号： H01Q15/0086 ,  H01Q1/52 ,  H01Q17/007 ,  H03H7/24

摘要： Electromagnetic shielding systems, apparatuses, and method are provided. One apparatus is an example free-space absorber metamaterial that includes a first array of patches disposed at a first plane, a conductive backplane disposed at a structural surface plane, and a first dielectric spacer disposed between the first array of patches and the conductive backplane. A first bandwidth of absorption for the free-space absorber metamaterial may be based on the area of a patch in the first array of patches, the first electrical resistance of a patch in the first array of patches, and the first gap distance taken between the first array of patches and the conductive backplane.

公开(公告)号：US10056697B2

公开(公告)日：2018-08-21

申请号：US15363793

申请日：2016-11-29

申请人： Seiji Kagawa

发明人： Seiji Kagawa

IPC分类号： H01Q17/00

CPC分类号： H01Q17/007 ,  H05K9/0096

摘要： A near-field electromagnetic wave absorbing film comprising a plastic film, and a single- or multi-layer, thin metal film formed on its surface; the thin metal film having laser-beam-bored holes of 200 μm or less in diameter with intervals of 50 μm or less on the entire surface, and pluralities of openings as large as giving transmission viewability partially on the surface.

公开(公告)号：US20180013191A1

公开(公告)日：2018-01-11

申请号：US15647040

申请日：2017-07-11

申请人： LunaTech, LLC

发明人： John David Cameron ,  Dean Becker ,  Gene Fein

IPC分类号： H01Q1/24 ,  H01Q1/52 ,  H01Q17/00 ,  H04M1/02 ,  H01Q1/42

CPC分类号： H01Q1/245 ,  H01Q1/243 ,  H01Q1/42 ,  H01Q1/526 ,  H01Q15/0013 ,  H01Q17/001 ,  H01Q17/007 ,  H04B1/3833 ,  H04M1/0249 ,  H04M1/0266

摘要： The present disclosure is directed to an apparatus having an energy absorbing and/or reflecting layer. In one embodiment, the apparatus may include a display comprising at least one rigid transparent member having a composite energy/safety layer disposed thereon. The composite energy/safety layer may comprise a flexible, transparent plastic substrate layer having a carrier surface and an opposing back surface, and a multilayer energy control coating disposed on the carrier surface of the substrate layer, wherein the substrate layer and the multilayer energy control coating define an energy control film. At least one flexible, transparent, energy absorbing plastic safety layer may be bonded to a surface of the energy control film. The multilayer energy control coating may be configured to absorb and/or reflect energy in and below the Gigahertz frequency range and to minimize energy absorption and reflection in the Terahertz frequency range.

公开(公告)号：US09453420B2

公开(公告)日：2016-09-27

申请号：US13881917

申请日：2011-10-25

申请人： Steve Appleton

发明人： Steve Appleton

IPC分类号： F03D11/00 ,  F01D5/28 ,  B29C70/08 ,  B29C70/86 ,  B29C70/88 ,  B29D99/00 ,  F03D1/06 ,  H01Q17/00 ,  H01Q15/14 ,  B29L31/08 ,  B32B38/18

CPC分类号： F01D5/282 ,  B29C70/086 ,  B29C70/86 ,  B29C70/882 ,  B29D99/0028 ,  B29L2031/085 ,  B32B38/1866 ,  B32B2309/105 ,  F03D1/065 ,  F05B2260/99 ,  H01Q15/148 ,  H01Q17/007 ,  H01Q17/008 ,  Y02E10/721 ,  Y02P70/523 ,  Y10T428/24314

摘要： A flexible core for a composite structure is described. The core includes a first core layer, a second core layer, and a ground plane between the first and second core layers. A plurality of slits is provided in the core, and each slit extends through one of the first of second core layers and through the ground plane. The core may be the core of a sandwich panel, for example a sandwich panel of the type used in the composite construction of wind turbine blades.

摘要翻译： 描述了用于复合结构的柔性芯。 芯包括第一芯层，第二芯层和第一和第二芯层之间的接地平面。 多个狭缝设置在芯部中，并且每个狭缝延伸穿过第一芯层中的一个并穿过接地平面。 芯可以是夹芯板的核心，例如在风力涡轮机叶片的复合结构中使用的夹层板。

公开(公告)号：US08717030B2

公开(公告)日：2014-05-06

申请号：US12948851

申请日：2010-11-18

申请人： Milton Cobo ,  James E. Hughes ,  Thomas D. Pahel, Jr. ,  Pravin S. Patel ,  Challis L. Purrington ,  Jack P. Wong

发明人： Milton Cobo ,  James E. Hughes ,  Thomas D. Pahel, Jr. ,  Pravin S. Patel ,  Challis L. Purrington ,  Jack P. Wong

IPC分类号： G01V3/02

CPC分类号： G21F7/061 ,  H01Q1/007 ,  H01Q15/147 ,  H01Q15/148 ,  H01Q17/007

摘要： Controlling electromagnetic (‘EM’) radiation in a data center having a number EM sections, including: receiving, by an EM controller, a specification of preferred EM radiation characteristics for the data center; and setting, by the EM controller, a state of each EM section in accordance with the specification, where the state of each EM section may be one of: an absorption state in which the EM section absorbs EM radiation or a reflection state in which the EM section reflects EM radiation.

公开(公告)号：US08624788B2

公开(公告)日：2014-01-07

申请号：US13095456

申请日：2011-04-27

申请人： Mina Ayatollahi

发明人： Mina Ayatollahi

IPC分类号： H01Q9/00

CPC分类号： H01Q13/10 ,  H01Q1/243 ,  H01Q1/521 ,  H01Q17/00 ,  H01Q17/007

摘要： An wireless communication device has a housing with an exterior surface that is designed to face a user when the wireless communication device is transmitting a radio frequency signal. The communication device includes an antenna disposed inside the housing for emitting a radio frequency signal. A metal-dielectric structure resonates to reflect the radio frequency signal. The metal-dielectric structure is located between the antenna and the exterior surface at a position wherein he metal-dielectric structure traps and reflects the radio frequency signal thereby reducing a specific absorption rate of the wireless communication device.

摘要翻译： 无线通信设备具有壳体，其外表面被设计为当无线通信设备正在发送射频信号时面向用户。 通信装置包括设置在壳体内的发射射频信号的天线。 金属介电结构谐振以反射射频信号。 金属 - 电介质结构位于天线与外表面之间的金属 - 电介质结构陷阱并反射射频信号从而降低无线通信设备的比吸收率的位置。

公开(公告)号：US20080257599A1

公开(公告)日：2008-10-23

申请号：US11664101

申请日：2005-09-29

申请人： Masato Matsushita ,  Takahiro Yoshida ,  Haruhide Go ,  Yoshiharu Kiyohara ,  Makoto Maezawa ,  Shinichi Sato

发明人： Masato Matsushita ,  Takahiro Yoshida ,  Haruhide Go ,  Yoshiharu Kiyohara ,  Makoto Maezawa ,  Shinichi Sato

IPC分类号： H05K9/00

CPC分类号： H05K9/0088 ,  H01Q15/0013 ,  H01Q17/00 ,  H01Q17/007

摘要： A conductive pattern basically has a substantially polygonal outline shape which is a polygon and can have a high peak value of the electromagnetic wave absorption amount as compared to a case when the conductive pattern has a circular outline shape. Thus, the conductive pattern is basically a polygon and at least one corner portion is shaped in curve. This reduces or even minimizes the shift of the frequency at which the absorption amount becomes a peak value by the polarization direction of the electromagnetic wave. Accordingly, in at least one embodiment, it is possible to realize an electromagnetic absorber having an excellent electromagnetic wave absorption characteristic exhibiting a high peak value of the absorption amount of the electromagnetic wave and a small shift of frequency at which the absorption amount becomes a peak value by the polarization direction of the electromagnetic wave.

摘要翻译： 与导电图案具有圆形轮廓形状的情况相比，导电图案基本上具有基本上多边形的轮廓形状，其是多边形并且可以具有高的电磁波吸收量的峰值。 因此，导电图案基本上是多边形，并且至少一个角部成形为曲线。 由此，通过电磁波的偏振方向使吸收量成为峰值的频率的偏移减少甚至最小化。 因此，在至少一个实施方式中，可以实现具有优异的电磁波吸收特性的电磁吸收体，其表现出电磁波吸收量的高峰值，吸收量变为峰值的频率偏移小 值由电磁波的偏振方向。

公开(公告)号：US06677881B1

公开(公告)日：2004-01-13

申请号：US09642740

申请日：2000-08-18

申请人： Katsumi Okayama

发明人： Katsumi Okayama

IPC分类号： H01Q1700

CPC分类号： H01Q17/008 ,  H01L23/552 ,  H01L2924/0002 ,  H01Q17/00 ,  H01Q17/007 ,  H05K1/0233 ,  H01L2924/00

摘要： A magnetic material exhibiting a high permeability at a high frequency range is materialized and a radio wave absorber exhibiting an excellent radio wave absorbing property by using such magnetic material is provided. The radio wave absorber comprises a mixed material containing a magnetic material grain, a resin material and a ceramic material or a low-melting-point metal material, in which the magnetic material grain is made into a disc shape is provided.

摘要翻译： 实现了在高频范围内具有高磁导率的磁性材料，并且提供了通过使用这种磁性材料表现出优异的无线电波吸收特性的电波吸收体。 无线电波吸收器包括含有磁性材料颗粒的磁性材料颗粒，树脂材料和陶瓷材料或低熔点金属材料的混合材料，其中磁性材料颗粒被制成盘形。

公开(公告)号：US20030148133A1

公开(公告)日：2003-08-07

申请号：US10257975

申请日：2002-10-28

发明人： Nils Gustafsson

IPC分类号： B32B027/08

CPC分类号： H01Q17/001 ,  H01Q17/00 ,  H01Q17/007 ,  H01Q17/008 ,  Y10T428/31909 ,  Y10T428/31931

摘要： A radiation absorber which is placed on the irradiated side of a conductive surface (L) whose surface resistance

摘要翻译： 辐射吸收体放置在表面电阻<0.1欧米亚/平方的导电面（L）的照射面上。 辐射吸收器包括三层，从所述导电表面向外由第一电介质（B1），电阻层（C1）和第二电介质（B2）组成。 电阻层的表面电阻为225欧姆/平方±25％，层的厚度无可能的载流子<0.2mm。 两个电介质层的介电常数εi= 2±25％及其厚度具有相同的数量级。 包含所有层的吸收体的总厚度dA根据公式 1