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公开(公告)号：US11818805B2
公开(公告)日：2023-11-14
申请号：US16745646
申请日：2020-01-17
CPC分类号： H04W88/08 , G06F1/163 , H04B17/318 , H04W36/30 , H04W52/245 , H04W76/14 , H04W76/15
摘要： A wearable apparatus includes an antenna affixed to a surface of the apparatus. A device is in electrical communication with the antenna. A control circuit is in electrical communication with the device and a communications device. The antenna includes a composition that includes a polymer and carbonaceous material made up of individual graphene sheets that are present in the polymer in a three-dimensional percolated network. A mobile device is communicatively coupled to a cellular RF source via a first wireless signal. The control circuit is configured to communicate, using the communications device, with the mobile device via a third RF signal; communicate, using the device, with the RF source via a second RF signal; and cause the mobile device to communicate with the RF source via the third RF signal when the second RF signal is greater than the first RF signal.
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公开(公告)号：US20230188634A1
公开(公告)日：2023-06-15
申请号：US17990444
申请日：2022-11-18
发明人： JOHN LETTOW , Sriram Manivannan , James A. Turney , Jennifer Pinkos , Kate Redmond , Dan Scheffer
摘要： Embodiments of the present invention relate to communications tarpaulins. In one embodiment, the communications tarpaulins include a textile layer, a plurality of antenna elements, and a communications hub. The communications hub includes a plurality of radio frequency (“RF”) connectors. The communications hub is affixed to the textile layer. The RF connectors are each conductively coupled to one of the antenna elements. The RF connectors each demountably receive a communications device. The antenna elements are each affixed to the textile layer and includes a conductive composition. The antenna elements each include a conductive composition. The conductive composition includes a polymer and fully exfoliated single sheets of graphene that are present as a three-dimensional percolated network within the polymer. The textile layer includes a first textile layer and a second textile layer that are coterminous and physically coupled together and thereby form a multilayered structure.
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公开(公告)号：USD847796S1
公开(公告)日：2019-05-07
申请号：US29515205
申请日：2015-01-20
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公开(公告)号：US10270183B1
公开(公告)日：2019-04-23
申请号：US16027645
申请日：2018-07-05
摘要： Embodiments of the present invention relate to a graphene-based Rotman lenses and associated methods of formation. In some embodiments, a lens is positioned proximate to a surface of a dielectric plate. In other embodiments, the lens comprises a first lens contour positioned opposite a second lens contour. In certain embodiments, a plurality of first transmission lines extends from the first lens contour and each terminating at a particular first port. In yet still other embodiments, a plurality of second transmission lines extends from the second lens contour and each terminating at a particular second port. In some embodiments, the lens includes a composition having a polymer(s) and a three-dimensional network of individual sheets of graphene positioned within the composition. In certain embodiments, the first port and/or the second port has a width of λ/2 or less.
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公开(公告)号：US11729304B2
公开(公告)日：2023-08-15
申请号：US17559650
申请日：2021-12-22
发明人： Dan F Scheffer , Sriram Manivannan , Keren Espina , Jennifer Pinkos , Can Gun Yaprak , Alison Baskerville
IPC分类号： H01Q1/27 , H01Q1/40 , A41D31/00 , H04W84/10 , H04M1/05 , H04B1/3827 , H01Q1/36 , A41D1/00 , A41D31/08 , H04W84/18 , H04W84/04
CPC分类号： H04M1/05 , A41D1/002 , A41D31/08 , H01Q1/273 , H01Q1/368 , H04B1/385 , H04B2001/3855 , H04W84/04 , H04W84/18
摘要： A communications node includes an apparel item in the form of a harness that includes a primary portion. A halo element extends from the primary portion and is configured to be worn about the neck. A fastener that demountably couples the primary portion to the halo element. An antenna element positioned within the apparel item. An A/V hub is affixed to the halo portion and configured to receive audio/video input. The apparel item also includes a communications device and battery. A control circuit is communicatively coupled to the antenna element, the A/V hub, the communications device, and the battery. The A/V hub demountably and communicatively couples to an audio/video source. The control circuit is configured to establish a self-organizing WAN with computing devices that connect directly, dynamically, and non-hierarchically to the WAN. The antenna elements include a graphene polymer conductive composition. The apparel item is multilayered and reflects RF radiation.
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公开(公告)号：US20170294702A1
公开(公告)日：2017-10-12
申请号：US15508983
申请日：2015-09-04
CPC分类号： H01Q1/2208 , H01Q1/368 , H01Q1/38 , H01Q7/00 , H01Q9/28
摘要： Embodiments of the present invention relate to a symmetrical printed radio frequency identification antenna and method of forming a radio frequency identification antenna. In one embodiment, the radio frequency identification antenna comprises a loop element having a plurality of sides. A first conductive element is in electrical communication with the loop element. A second conductive element is in electrical communication with the loop element. The first conductive element includes an integrated circuit pad. The first and second conductive elements extend in opposite directions substantially from a middle portion of a side included in the plurality of sides. The loop, first conductive element, and second conductive element are electrically conductive. The second conductive element includes a quadrilateral portion. The second conductive element has a width that is at least about the length of the side included in the plurality of sides.
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公开(公告)号：US11722592B2
公开(公告)日：2023-08-08
申请号：US17591559
申请日：2022-02-02
发明人： Jennifer Pinkos , Keren Espina , James A Turney , Sriram Manivannan , Sandy Spence , Dan Scheffer , John Lettow
CPC分类号： H04M1/05 , A41D1/002 , A41D31/08 , H01Q1/273 , H01Q1/368 , H04B1/385 , H04B2001/3855 , H04W84/04 , H04W84/18
摘要： Wearable antenna systems in the form of suspenders are disclosed. Such communications suspenders employ antenna elements having a reduced visual signature while maintaining the load bearing functionality of traditional suspenders. The antenna system communicatively couples to portable radios that operate on different RF frequencies via a communications hub. Some of the antennas elements are dynamically positionable (i.e., swappable, switchable, etc.) on the communications suspenders. A plurality of straps are pivotably coupled to an intermediate portion at one end and a demountable fastener at the other end. The demountable fasteners couple to the user's garment item (e.g., trousers, shorts, skirts, and similar articles). The straps include RF shielding material positioned to reflect RF radiation that emanates from the antenna elements away from the user. The antenna elements are formed using a conductive composition of fully exfoliated graphene sheets present as a percolated network in a polymer matrix.
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