公开(公告)号：US20210050673A1

公开(公告)日：2021-02-18

申请号：US17044054

申请日：2019-04-04

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： Dipankar Ghosh ,  Jaewon Kim ,  Stephen J. Etzkorn ,  Ronald D. Jesme ,  Mohsen Salehi ,  Guanglei Du ,  John A. Wheatley

IPC分类号： H01Q17/00 ,  H05K1/02 ,  G01S7/03 ,  H01Q1/42 ,  H01Q1/32 ,  H01Q1/38

摘要： Radar standing wave dampening systems and components are described. In particular, systems and components including an absorber composite including at least one of ceramic filler, magnetic filler, or conductive filler materials are described. Such components can reduce the intensity of standing waves and may also be combined in systems with one or more gradient permittivity tapes or films.

公开(公告)号：US10826190B2

公开(公告)日：2020-11-03

申请号：US15743710

申请日：2016-12-01

申请人： AGENCY FOR DEFENSE DEVELOPMENT

发明人： Chun-Gon Kim ,  Young-Woo Nam ,  Jae-Hun Choi

IPC分类号： H01Q17/00 ,  B32B38/08 ,  H05K9/00

摘要： An electromagnetic wave absorber includes a first layer and a second layer disposed on the first layer. The first layer may include a first reinforcing fiber impregnated in a first matrix. The second layer may include a second reinforcing fiber impregnated in a second matrix. The second reinforcing fiber may be plated with a metal magnetic coating layer. The electromagnetic wave absorber may provide electromagnetic wave absorbing ability with a low uncertainty without reducing mechanical properties due to the metal magnetic coating layer.

公开(公告)号：US10790582B2

公开(公告)日：2020-09-29

申请号：US16198910

申请日：2018-11-23

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Ryosuke Shiozaki ,  Ken Takahashi ,  Tomohiro Yui ,  Noriaki Saito ,  Kouji Suzuki ,  Yuichi Kashino

IPC分类号： H01Q1/42 ,  H01Q19/06 ,  H01Q15/08 ,  H01Q21/06 ,  G01S13/931 ,  H01Q1/32 ,  H01Q15/14 ,  H01Q1/12 ,  H01Q9/04 ,  H01Q17/00 ,  H01Q19/10 ,  H05K1/02 ,  H05K1/18 ,  G01S7/02

摘要： An antenna device that has a housing formed with a window surface and transmits and receives an electromagnetic wave through a cover member facing the window surface, the antenna device having a length in a direction of transmitting and receiving the electromagnetic wave that is greater than a height thereof, comprises: a circuit board that is provided inside the housing; a reflection plate that is provided inside the housing and faces a board surface of the circuit board; a transmitting antenna that is provided inside the housing and transmits the electromagnetic wave to a side of the reflection plate; and a receiving antenna that is provided inside the housing and receives the electromagnetic wave.

公开(公告)号：US20200299868A1

公开(公告)日：2020-09-24

申请号：US16362189

申请日：2019-03-22

申请人： Tangitek, LLC

发明人： Robert L. Doneker ,  Kent G. R. Thompson

IPC分类号： D01F11/14 ,  D01F11/12 ,  D01F9/12 ,  H01Q17/00

摘要： A carbon fiber composite, including a carbon fiber not connected to a substrate, an insulative layer coating at least a portion of the carbon fiber, and a material deposited on at least a portion of the insulative layer. The carbon fiber deposit may be used, for example, in adjustable Fresnel lenses and horn antennas.

公开(公告)号：US10778343B2

公开(公告)日：2020-09-15

申请号：US15786785

申请日：2017-10-18

申请人： JOHNS MANVILLE

发明人： Thomas Bell ,  Christopher Griffin ,  Jacob Heaps ,  Joel Hazy

IPC分类号： H04B15/02 ,  H01Q3/26 ,  H04B17/10 ,  H01Q1/24 ,  C09J7/20 ,  C09J7/22 ,  C09J7/29 ,  B29C48/154 ,  B29C48/00 ,  C09J7/38 ,  B32B7/02 ,  B32B15/085 ,  B32B15/20 ,  B32B27/30 ,  B32B27/32 ,  G21F1/12 ,  H01Q17/00 ,  B32B3/26 ,  B32B7/06 ,  B32B7/12 ,  B32B11/08 ,  B32B15/08 ,  H04B15/00 ,  H04B17/345 ,  B32B11/00 ,  H01Q15/14 ,  C09J195/00

摘要： Materials and methods for mitigating passive intermodulation. A membrane for reducing passive intermodulation includes a first polymeric layer, a second polymeric layer, and a continuous metal layer encapsulated between the first and second polymeric layers. A self-adhesive radio frequency barrier tape includes a waterproof polymeric top layer, a metal-containing layer adhered by an adhesive layer to the polymeric top layer, a pressure sensitive adhesive layer adhered to the metal-containing layer, and a release liner on a bottom surface of the pressure sensitive adhesive layer. A method of mitigating passive intermodulation includes passing a probe over an area of interest, the probe being sensitive to an intermodulation frequency of interest, and identifying a suspected source of passive intermodulation when the amplitude of the probe output exceeds a threshold at the frequency of interest. The method further includes covering the suspected passive intermodulation source with a radio frequency barrier material.

公开(公告)号：US10748052B2

公开(公告)日：2020-08-18

申请号：US15736890

申请日：2016-06-16

申请人： FABELE-S.R.L.

发明人： Claudio Lolli ,  Silvio Lolli ,  Marcello Lolli

IPC分类号： H01Q17/00 ,  G06K19/077 ,  H01Q1/22 ,  H01F41/082 ,  H01Q1/36 ,  H01Q7/00

摘要： A method and apparatus for making an antenna for a radio-frequency identification device uses a forming device that rotates around an axis and includes shaping elements movable in a direction parallel to the rotation axis. A guiding device including a guiding element is movable in a direction substantially perpendicular to the rotation axis relative to the shaping elements of the forming device go guide a flexible wire or braided wires around the shaping elements to shape the wire in the form of an antenna. At least one gripper on the forming device immobilizes a free end of the wire. The antenna is laid on and connected with the upper surface of a substrate.

公开(公告)号：US10734725B2

公开(公告)日：2020-08-04

申请号：US15780682

申请日：2016-11-22

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： Michael S. Graff ,  Biplab K. Roy

IPC分类号： H01Q7/06 ,  H01Q1/38 ,  H01Q17/00 ,  H01F1/153 ,  H01F27/36 ,  H01P1/365 ,  H01F38/14

摘要： A magnetic isolator includes a dielectric film having a layer of electrically-conductive soft magnetic material bonded thereto. The layer of electrically-conductive soft magnetic material comprises substantially coplanar electrically-conductive soft magnetic islands separated one from another by gaps. At least some of the electrically-conductive soft magnetic islands have an outer insulating oxidized layer that electrically insulates them from adjacent electrically-conductive soft magnetic islands. The gaps at least partially suppress electrical eddy current induced within the layer of soft magnetic material when in the presence of applied external magnetic field. An electronic device including the magnetic isolator and a method of making the magnetic isolator are also disclosed.

公开(公告)号：US20200240752A1

公开(公告)日：2020-07-30

申请号：US16638484

申请日：2018-08-09

申请人： Kumutha N ,  Amutha N

发明人： Kumutha N ,  Amutha N

IPC分类号： F41H3/00 ,  H01Q17/00

摘要： The present invention relates to invisibility device in, particular to electromagnetic cloaking devices and their method of making the same. The present invention is related to designing the cloak device with a base made of first material and strips of second material placed on the said base. The present invention proposed a design strategy through which cloaking at multi band can be achieved even with single layer of cloaking device.

公开(公告)号：US20200212546A1

公开(公告)日：2020-07-02

申请号：US16608534

申请日：2018-04-10

申请人： NEC CORPORATION ,  NEC PLATFORMS, LTD.

发明人： Shinichirou KODAMA ,  Kenji KOUNO ,  Tomohiro SHIMODA ,  Kazuaki MUROFUSHI ,  Hidenori MORIYA ,  Mitsuno KONDO ,  Sumio HIRAKU ,  yUKIO ANDO ,  Tetsuya NAGATA

IPC分类号： H01Q1/27 ,  H01Q1/52 ,  H01Q17/00 ,  H01Q15/14 ,  H01Q1/36

摘要： The wearable antenna device includes an antenna part—attached to a part of a garment including a body accommodation part—that accommodates a part of a body, and a functional element arranged in a position of the garment in such a way that at least a part of the functional element is opposed to the antenna part with the body accommodation part interposed therebetween. The functional element is another antenna part or an element that performs at least one of reflection, shielding, and absorption of radio waves

公开(公告)号：US10691995B2

公开(公告)日：2020-06-23

申请号：US16335739

申请日：2017-09-22

申请人： AMOTECH CO., LTD.

发明人： Joo-Seung Maeng ,  Jin-Won Noh ,  Eui-Jin Jung ,  Kil-Jae Jang

IPC分类号： G06K19/077 ,  H01Q1/22 ,  H01Q1/24 ,  H01Q7/06 ,  H04M1/02 ,  H01Q1/38 ,  G06Q20/32 ,  H04B5/00 ,  H05K1/02 ,  H01Q1/52 ,  H05K9/00 ,  H01Q17/00

摘要： Disclosed is an antenna module, which forms a radiation pattern for near-field communication and a radiation pattern for electronic payment on a flexible printed circuit board, and then couples it with a magnetic sheet, thereby implementing the performance equal to or superior to that of a conventional antenna module while simplifying the manufacturing process. The disclosed antenna module includes a flexible magnetic sheet and an antenna sheet on which a radiation pattern and an insertion hole are formed, and the magnetic sheet is formed with an extension portion formed on one short side, and the extension portion is penetrated and inserted into the insertion hole to be coupled with the antenna sheet.