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公开(公告)号：US20180115034A1
公开(公告)日：2018-04-26
申请号：US15565597
申请日：2016-04-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Jaewon Kim , Justin M. Johnson , Craig W. Lindsay , Dipankar Ghosh
CPC classification number: H01P1/2005 , H01P1/2084 , 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.
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公开(公告)号：US20170346190A1
公开(公告)日：2017-11-30
申请号：US15537652
申请日：2015-01-13
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Jaewon Kim , Douglas B. Gundel , Ronald D. Jesme , Justin M. Johnson
Abstract: Techniques are described for a lens containing high dielectric resonators. In one example, a lens comprises a substrate for propagating an electromagnetic wave and a plurality of resonators dispersed throughout the substrate. Each of the plurality of resonators has a diameter selected based at least in part on a wavelength of the electromagnetic wave and is formed of a dielectric material having a resonance frequency selected based at least in part on a frequency of the electromagnetic wave. Each of the plurality of resonators also has a relative permittivity that is greater than a relative permittivity of the substrate. At least two of the plurality of resonators are spaced within the substrate 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.
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公开(公告)号：US20250125535A1
公开(公告)日：2025-04-17
申请号：US18293872
申请日：2022-08-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Zulfiqar A. Khan , Gregory M. Haugen , Jaewon Kim , Christian Weinmann , Badri Veeraraghavan , Bernhard Schneider , Jeffrey A. Tostenrude , Charles L. Bruzzone , Lars Schrix , Jennifer J. Sokol , Andreea Sabo , Pontus S.B. Broddner
Abstract: An antenna assembly includes a phased array antenna having an array of spaced apart antenna elements arranged on a horizontal surface and having an axis of symmetry, and a lens disposed on the phased array antenna. The lens substantially covers the antenna elements. The lens includes a substantially planar bottom surface. The bottom surface and tops of the antenna elements define a gap therebetween. For a second vertical plane orthogonal to the horizontal surface and including the axis of symmetry. the antenna assembly steers a beam in a second vertical plane having a 3 dB beam width W1 when steered along a first direction making an angle of less than 10 degrees with a normal to the horizontal surface and a 3 dB beam width W2 when steered along a second direction making an angle of greater than 40 degrees with the normal. W1 and W2 within 35% of each other.
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公开(公告)号：US12249847B2
公开(公告)日：2025-03-11
申请号：US17309781
申请日：2019-12-13
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Zohaib Hameed , Jaewon Kim , Sithya S. Khieu
Abstract: A device is described having one or more conductive loops to produce an electromagnetic field, such as for wireless power transfer to an electronic device. In some examples, an antenna is used with at least one resonating capacitor ring that is relatively co-planar with the antenna, and that is magnetically coupled to the antenna but is not electrically powered by an external source. In addition, a device is described having two or more thin-film coils, each coil comprising a pair of terminals and at least one loop defining a plane and an interior region. In some examples, the planes of the two or more coils are disposed substantially parallel to one another, the interior regions of the two or more coils at least partially overlap one another, and the pairs of terminals of the antennae are electrically connected in parallel.
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公开(公告)号：US20250035828A1
公开(公告)日：2025-01-30
申请号：US18916811
申请日：2024-10-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Fan Long , Bharat R. Acharya , Jaewon Kim , Jingfei Chen , Huijie Xie , Zhe Hu
Abstract: An optical stack includes a substrate, a radio-wave anti-reflection sheet configured to reduce reflection from the optical stack of radio waves at a predetermined operating frequency, and a visible light reflective, infrared light transmissive multilayer optical film disposed between the radio-wave anti-reflection sheet and the substrate. For radiation substantially normally incident on the radio-wave anti-reflection sheet and for a first frequency range at least 20 GHz wide, centered on the predetermined operating frequency, and disposed between about 1 GHz and about 120 GHz, a return loss of the optical stack is asymmetric about the predetermined operating frequency in the first frequency range. The optical stack has a largest return loss S11L in the first frequency range of less than −10 dB and a difference between the largest return loss S11L and a smallest return loss S11S in the first frequency range is less than about 2 dB.
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Patent Agency Ranking
公开(公告)号：US20240314991A1
公开(公告)日：2024-09-19
申请号：US18575410
申请日：2022-06-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Sergei A. Manuilov , Ivan Lemesh , Jaewon Kim , Joseph B. Eckel , Michael S. Graff
CPC classification number: H05K9/0081 , H01Q3/46 , H01Q15/14 , H01Q17/00
Abstract: Articles to control an electromagnetic (EM) radiation in the range of 1 GHz to 100 GHz, and methods of making and using the same are provided. An EM controlling sheet structure includes a dielectric carrier layer and an array of metallic resonant elements supported by the dielectric carrier layer to form an EM metamaterial structure in a non-random pattern. The metallic resonant elements are oriented such that each metallic resonant element has an axis substantially parallel to each other and substantially parallel to a major plane of the dielectric carrier layer.
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公开(公告)号：US20240294002A1
公开(公告)日：2024-09-05
申请号：US18649399
申请日：2024-04-29
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Bharat R. Acharya , Derek J. Dehn , Bradley L. Givot , Jaewon Kim , Yong K. Wu
CPC classification number: B32B27/18 , B32B5/12 , B32B5/16 , B32B7/12 , B32B27/08 , C08J5/18 , B32B2250/03 , B32B2250/24 , B32B2262/02 , B32B2264/101 , B32B2264/102 , B32B2264/2032 , B32B2264/303 , B32B2264/403 , B32B2307/204 , B32B2307/54 , B32B2307/706 , B32B2605/00
Abstract: A film includes a polymeric material and a plurality of particles dispersed therein. The polymeric material includes a plurality of elongate polymeric elements oriented along substantially a same first direction and interconnecting the particles. A ratio of a volume of the plurality of particles to a volume of the polymeric material is at least 5. An elongate portion of at least a first elongate polymeric element in the plurality of elongate polymeric elements may conform to and be bonded to a first particle in the plurality of particles along an entire length of the elongate portion. The first elongate polymeric element may extend from the elongate portion at least to a second particle in the plurality of particles.
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公开(公告)号：US11985805B2
公开(公告)日：2024-05-14
申请号：US17910543
申请日：2021-03-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Zhonghua Lu , Badri Veeraraghavan , Joel S. Peiffer , Jeffrey A. Tostenrude , Jaewon Kim , Zulfiqar A. Khan , Jennifer J. Sokol
CPC classification number: H05K9/0083 , H01Q1/02 , H01Q1/526
Abstract: A thermally conductive electromagnetically absorbing material includes a plurality of particles dispersed in a binder. The plurality of particles can have a particle size distribution having at least three peaks, where at least a majority of particles within a half width at half maximum of one, but not the other ones, of the at least three peaks are at least partially coated with an electromagnetically absorbing coating. The plurality of particles can include pluralities of first and second particles where a total number of the first particles is at most 1% of a total number of the first and second particles and where the first particles are more electromagnetically absorbing than the second particles. Films, molded articles and systems including the thermally conductive electromagnetically absorbing material are described.
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公开(公告)号：US20240077756A1
公开(公告)日：2024-03-07
申请号：US18238077
申请日：2023-08-25
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Jaewon Kim , Lars Schrix , Gregory M. Haugen , Robert A. Sainati
IPC: G02F1/01
CPC classification number: G02F1/0136
Abstract: An optical construction includes optical stacks arranged across the construction and spaced apart from each other. Each of the optical stacks has a transmittance of at least 60% for at least one visible wavelength and includes one or more electrically conductive layers. The optical stacks are co-extensive with first and second antennas. Each of the electrically conductive layers defines a through opening aligned with at least one of the first and second antennas. For each of an s-polarized first incident signal incident on the optical construction in a first incident plane and a p-polarized second incident signal incident on the optical construction in a second incident plane orthogonal to the first incident plane, for at least one frequency in a range from 0.5 GHz to 10 GHz, and for incident angles of up to 40 degrees, the optical construction has a transmission coefficient of between 0 dB and −10 dB.
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公开(公告)号：US11189898B2
公开(公告)日：2021-11-30
申请号：US16756189
申请日：2018-10-22
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Jaewon Kim , Dipankar Ghosh , Craig W. Lindsay , Matthew S. Stay
IPC: H01P3/16
Abstract: A waveguide and a communication system including the waveguide are described. The waveguide is configured to propagate an electromagnetic wave having an operating frequency along the waveguide. The waveguide includes a substrate having a first dielectric constant, and an array of spaced apart unit cells at least partially embedded in the substrate and arranged along the waveguide. Each of a plurality of the unit cells in the array of spaced apart unit cells has a first transmission parameter S121 having a lowest resonant frequency Γ1 and includes a dielectric body and one or more electrically conductive layers disposed on and partially covering the dielectric body. The dielectric body has a second dielectric constant greater than the first dielectric constant at the operating frequency and has a second transmission parameter S221 having a lowest resonant frequency Γ2 greater than Γ1.
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