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    WAVEGUIDE WITH HIGH DIELECTRIC RESONATORS
    3.
    发明申请
    WAVEGUIDE WITH HIGH DIELECTRIC RESONATORS 审中-公开
    带高介电谐振器的波形管

    公开(公告)号：WO2016172020A1

    公开(公告)日：2016-10-27

    申请号：PCT/US2016/028038

    申请日：2016-04-18

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： KIM, Jaewon ,  JOHNSON, Justin M. ,  LINDSAY, Craig W. ,  GHOSH, Dipankar

    IPC: H01P1/20 ,  H01P3/12 ,  H01P3/14 ,  H01P3/16 ,  H01P7/10 ,  H01Q1/27 ,  H01Q1/32

    CPC classification number: H01P1/2005 ,  H01P3/122 ,  H01P3/14 ,  H01P3/16 ,  H01P7/10 ,  H01Q1/273 ,  H01Q1/32

    Abstract: At least some aspects of the present disclosure feature a waveguide for propagating an electromagnetic wave. The waveguide includes a base material and a plurality of resonators disposed in a pattern, the plurality of resonators having a resonance frequency. Each of the plurality of resonators has a relative permittivity greater than a relative permittivity of the base material. At least two of the plurality of resonators are spaced according to a lattice constant that defines a distance between a center of a first one of the resonators and a center of a neighboring second one of the resonators.

    Abstract translation: 本公开的至少一些方面特征在于用于传播电磁波的波导。 波导包括基底材料和以图案设置的多个谐振器，多个谐振器具有共振频率。 多个谐振器中的每一个具有大于基底材料的相对介电常数的相对介电常数。 多个谐振器中的至少两个根据限定谐振器中的第一谐振器的中心与相邻的第二谐振器的中心之间的距离的晶格常数间隔开。

    ELECTRIC FIELD GRADING COMPOSITION, METHODS OF MAKING THE SAME, AND COMPOSITE ARTICLES INCLUDING THE SAME
    6.
    发明申请
    ELECTRIC FIELD GRADING COMPOSITION, METHODS OF MAKING THE SAME, AND COMPOSITE ARTICLES INCLUDING THE SAME 审中-公开

    公开(公告)号：WO2019220345A1

    公开(公告)日：2019-11-21

    申请号：PCT/IB2019/053991

    申请日：2019-05-14

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： GHOSH, Dipankar

    IPC: H01B3/46 ,  H02G15/064 ,  H02G15/103 ,  H02G15/184 ,  H01B7/28 ,  H01B9/02 ,  C08K3/22

    Abstract: Electric field grading compositions comprise a particulate cupric oxide dispersed in a matrix material, wherein the electric field grading composition has a threshold voltage, a breakdown voltage, and exhibits a reversible electric field switchable current-voltage relationship that substantially follows the equation: I = kVα wherein: I is current in amperes; k is a constant greater than 0; V is applied voltage in volts, wherein V is between the threshold voltage and the breakdown voltage, inclusive; and α is a real number greater than 1. The electric field grading composition is useful for reducing electric field stress at a joint or termination of a conductive substrate. Articles including the electric field grading disposed on a surface of a conductive substrate are also disclosed.

    NONLINEAR COMPOSITE COMPOSITIONS, METHODS OF MAKING THE SAME, AND ARTICLES INCLUDING THE SAME
    7.
    发明申请
    NONLINEAR COMPOSITE COMPOSITIONS, METHODS OF MAKING THE SAME, AND ARTICLES INCLUDING THE SAME 审中-公开

    公开(公告)号：WO2018102254A1

    公开(公告)日：2018-06-07

    申请号：PCT/US2017/063269

    申请日：2017-11-27

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： AKSIT, Mahmut ,  GHOSH, Dipankar

    IPC: H01C7/12 ,  H01B1/22 ,  H01B3/00 ,  H02G15/068 ,  H02G15/184 ,  H02G15/188

    Abstract: Nonlinear composite compositions comprise a dielectric matrix material and flakes of a mixed metal oxide having the formula M1 x M2 y O z dispersed in the dielectric matrix material. M1 is selected from the group consisting of alkali metals, alkaline earth metals, and combinations thereof. M2 is a transition metal or post-transition metal, wherein M2 has an atomic number no greater than 78. The number x is in the range 0.3 ≤ x ≤ 1, y is a number in the range 0.5 ≤ y ≤ 1.5, and z is a number selected such that the mixed metal oxide is electrically neutral, wherein the amount of flakes in the nonlinear composite composition is sufficient that the nonlinear composite composition has a nonlinear increasing conductivity in response to increasing electric field. Methods of making nonlinear composite compositions and articles including them are disclosed.

    HIGH-DIELECTRIC-LOSS COMPOSITES FOR ELECTROMAGNETIC INTERFERENCE (EMI) APPLICATIONS
    8.
    发明申请
    HIGH-DIELECTRIC-LOSS COMPOSITES FOR ELECTROMAGNETIC INTERFERENCE (EMI) APPLICATIONS 审中-公开
    用于电磁干扰（EMI）应用的高介电损耗复合材料

    公开(公告)号：WO2018081394A1

    公开(公告)日：2018-05-03

    申请号：PCT/US2017/058488

    申请日：2017-10-26

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： GHOSH, Dipankar

    IPC: H05K9/00

    Abstract: Electromagnetic interference (EMI) shielding composites and methods of making and using the same are described. The composites include high-loading-level ceramic particles distributed in a low-dielectric-loss matrix material having a dielectric loss tangent in the range of about 0.0001 to about 0.005. In one case, the composite includes CuO particles distributed in silicone. The composites exhibit dielectric absorber properties in the high frequency range.

    Abstract translation: 描述了电磁干扰（EMI）屏蔽复合材料及其制造和使用方法。 该复合材料包括分布在介电损耗角正切在约0.0001至约0.005范围内的低介电损耗基体材料中的高负载水平的陶瓷颗粒。 在一种情况下，复合材料包含分布在硅树脂中的CuO颗粒。 复合材料在高频范围内表现出电介质吸收性能。

    AN ELECTRICALLY CONDUCTIVE ARTICLE CONTAINING SHAPED PARTICLES AND METHODS OF MAKING SAME
    9.
    发明申请
    AN ELECTRICALLY CONDUCTIVE ARTICLE CONTAINING SHAPED PARTICLES AND METHODS OF MAKING SAME 审中-公开
    包含形状颗粒的电导体制品及其制造方法

    公开(公告)号：WO2015073346A1

    公开(公告)日：2015-05-21

    申请号：PCT/US2014/064728

    申请日：2014-11-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： GHOSH, Dipankar ,  MCCUTCHEON, Jeffrey W. ,  CULLER, Scott R.

    IPC: H01B1/20

    CPC classification number: H05K9/0064 ,  H01B1/20 ,  H01B1/22 ,  H01B1/24

    Abstract: Electrically conductive articles are provided, including a composite including (a) a resin, and (b) electrically conductive shaped particles distributed in the resin, the particles having a monosized distribution. Each particle has a shape including at least a first surface and a second surface intersecting the first surface at an angle a between about 5 degrees and about 150 degrees. The composite has a thickness and often each of the electrically conductive shaped particles distributed in the resin is oriented within the resin such that the particle does not extend beyond the thickness of the composite. A method for making an electrically conductive article is also provided, including (a) providing electrically conductive shaped particles having a monosized distribution, and (b) distributing the particles into a resin to form a composite.

    Abstract translation: 提供导电制品，包括包含（a）树脂的复合材料和（b）分布在树脂中的导电成形颗粒，颗粒具有单一分布。 每个颗粒具有至少第一表面和第二表面的形状，该第一表面和第二表面以大约5度至大约150度之间的角度α与第一表面交叉。 复合材料具有厚度，并且通常将分布在树脂中的每个导电成形颗粒定向在树脂内，使得颗粒不超过复合材料的厚度。 还提供了制造导电制品的方法，包括（a）提供具有单一分布的导电成形颗粒，和（b）将颗粒分散在树脂中以形成复合材料。

    MULTILAYER FILM INCLUDING FIRST AND SECOND DIELECTRIC LAYERS
    10.
    发明申请
    MULTILAYER FILM INCLUDING FIRST AND SECOND DIELECTRIC LAYERS 审中-公开
    多层膜包括第一和第二介质层

    公开(公告)号：WO2014081918A2

    公开(公告)日：2014-05-30

    申请号：PCT/US2013/071192

    申请日：2013-11-21

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： GHOSH, Dipankar ,  LYONS, Christopher, S. ,  GORRELL, Robin, E. ,  MAKI, Stephen, P.

    IPC: H01G4/33

    CPC classification number: H01G4/10 ,  C23C14/083 ,  C23C14/34 ,  C23C16/22 ,  C23C28/32 ,  C23C28/3455 ,  C25D5/00 ,  H01G4/20 ,  H01G4/206 ,  H01G4/33 ,  H01L28/56 ,  H05K1/0393 ,  H05K1/162 ,  H05K3/022 ,  H05K3/4655 ,  H05K2203/1545

    Abstract: A multilayer dielectric film including a first dielectric layer made from a material having a first breakdown field strength and a second dielectric layer disposed on the first dielectric layer made from a material having a different breakdown filed strength. A multilayer film including first and second electrically conductive layers separated by at least first and second dielectric layers is also disclosed. The first dielectric layer is disposed on the first electrically conductive layer, and the second dielectric layer is disposed on the first dielectric layer. The first electrically conductive layer can have at least one of an average surface roughness of at least ten nanometers, a thickness of at least ten micrometers, or an average visible light transmission of up to ten percent. The first dielectric layer may be a polymer and typically has a lower dielectric constant than the second dielectric layer, which may be ceramic.

    Abstract translation: 一种多层电介质膜，包括由具有第一击穿场强的材料制成的第一电介质层和设置在具有不同击穿场强的材料制成的第一电介质层上的第二电介质层。 还公开了包括由至少第一和第二电介质层分离的第一和第二导电层的多层膜。 第一电介质层设置在第一导电层上，第二电介质层设置在第一电介质层上。 第一导电层可以具有至少10纳米的平均表面粗糙度，至少10微米的厚度或高达10％的平均可见光透射率中的至少一个。 第一介电层可以是聚合物，并且通常具有比可以是陶瓷的第二介电层更低的介电常数。

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