IRRADIATION APPARATUS OF ELECTROMAGNETIC WAVES

    公开(公告)号:US20240363998A1

    公开(公告)日:2024-10-31

    申请号:US18649235

    申请日:2024-04-29

    申请人: ITC CO., LTD

    发明人: Keun Deok LEE

    IPC分类号: H01Q1/36 H01Q1/02 H01Q11/08

    CPC分类号: H01Q1/36 H01Q1/02 H01Q11/083

    摘要: An electromagnetic wave irradiation apparatus includes a housing having a hollow portion formed inside and an open lower side; a coil-type antenna with a spiral shape in the hollow portion and configured to emit electromagnetic waves; a window coupled to the open lower side of the housing; and a capacitance variation measurement unit configured to measure a capacitance variation of the coil-type antenna. The electromagnetic wave irradiation apparatus may further include a cooling unit configured to cool at least one of the window or the housing. The capacitance variation measurement unit includes a capacitance sensor with one side connected to the coil-type antenna and the other side connected to the ground.

    WIRELESS COMMUNICATION ROTARY JOINT
    2.
    发明公开

    公开(公告)号:US20240250440A1

    公开(公告)日:2024-07-25

    申请号:US18422264

    申请日:2024-01-25

    IPC分类号: H01Q11/08 H01Q9/04 H01Q21/28

    摘要: A system and method for communicating signals through a slip ring. It includes a stator and a rotor configured to rotate relative to the stator about a rotation axis, the rotor having a first wireless module with a first antenna. The stator has a second wireless module with a second antenna. The first and second antennae are arranged along the rotation axis. The first and second antennae are adapted to communicate with each other by at least partially using polarized signals.

    IMPROVED UTLTRA-WIDEBAND CIRCULAR-POLARIZED RADIATION ELEMENT WITH INGEGRATED FEEDING

    公开(公告)号:US20240222880A1

    公开(公告)日:2024-07-04

    申请号:US18039139

    申请日:2021-11-04

    摘要: An antenna element (100) for an array antenna. The antenna element having a layered configuration comprising a first ground plane (151), a first dielectric layer (140) facing the first ground plane (151), a first planar radiation element (131) facing the first dielectric layer (140), and a feeding via hole (132) arranged electrically connected to the first planar radiation element (131) and arranged extending through the first dielectric layer (140) and through the first ground plane (151) without electrical contact. The antenna element further comprises at least one complementary set comprising a complementary dielectric layer (120) and a complementary planar radiation element (111) facing the complementary dielectric layer. The set is arranged stackable facing the first planar radiation element (131) such that a complementary dielectric layer is arranged between two radiation elements (111, 131) in the layered configuration. The first planar radiation element (131) constitutes a first continuous part of a spiral antenna and the at least one complementary planar radiation element (111) constitutes a continuation of the spiral antenna, thereby the first and the at least one complementary planar radiation elements (111, 131) constitute an effective spiral antenna.

    Antenna device
    5.
    发明授权

    公开(公告)号:US11936101B2

    公开(公告)日:2024-03-19

    申请号:US18109874

    申请日:2023-02-15

    申请人: YOKOWO CO., LTD.

    摘要: An antenna device includes a first antenna and a second antenna provided in a case. The first antenna includes a first capacitance loading element and is configured to at least one of receive and transmit a signal in a first frequency band. The second antenna includes a second capacitance loading element and is configured to at least one of receive and transmit a signal in a second frequency band. The second frequency band is higher than the first frequency band. The second capacitance loading element is disposed at a front side of the first capacitance loading element.

    Wire assembly useful in applications that are in close proximity to antenna

    公开(公告)号:US11562831B2

    公开(公告)日:2023-01-24

    申请号:US16746934

    申请日:2020-01-19

    摘要: An antenna installation having an antenna and a wire assembly. The antenna has a first end and a second end, with the antenna having a radiative distribution pattern and RF input characteristics. The wire assembly is positioned in close proximity to the antenna. The wire assembly includes a conductor and an RF insulative wrap. The conductor has a first end and a second end and at least one conductive element extending between the first end and the second end. The RF insulative wrap encircles the conductor between the first end and the second end. The RF insulative wrap includes a magnetic sheet having a magnetic metal powder within a polymer matrix. A method of preparing a wire assembly as well as the wire assembly itself are likewise disclosed.

    FILTERING PROXIMITY ANTENNA ARRAY

    公开(公告)号:US20230006359A1

    公开(公告)日:2023-01-05

    申请号:US17746837

    申请日:2022-05-17

    摘要: A system includes a first antenna and a second antenna. The first antenna includes an antenna section. The antenna section includes a first antenna segment, a second antenna segment adjacent to the first antenna segment, and a notch circuit disposed within a notch between the first antenna segment and the second antenna segment. The notch circuit prevents a first frequency of a signal from passing from the first antenna segment to the second antenna segment while allowing a second frequency from the signal to pass from the first antenna segment to the second antenna segment. The second antenna is disposed proximate to the first antenna. The first antenna occupies a second near field region of the second antenna and the second antenna occupies a first near field region of the first antenna.

    MULTI-BAND QUADRIFILAR HELIX SLOT ANTENNA

    公开(公告)号:US20220311145A1

    公开(公告)日:2022-09-29

    申请号:US17213826

    申请日:2021-03-26

    发明人: XIN DU Huiming Song

    IPC分类号: H01Q13/12 H01Q1/36 H01Q11/08

    摘要: A quadrifilar helix antenna may comprise a cylindrical body with a conductive layer. The antenna may further comprise a first slot disposed on the cylindrical body, wherein a length of the first slot is proportional to a first wavelength of a first signal. The antenna may further comprise a second slot disposed on the cylindrical body. The antenna may further comprise a first feed line crossing the first slot. The antenna may further comprise a second feed line crossing the second slot.

    Electromagnetic knot applications in radio waves for wireless and photonics for quantum computing

    公开(公告)号:US11356148B2

    公开(公告)日:2022-06-07

    申请号:US17005923

    申请日:2020-08-28

    发明人: Solyman Ashrafi

    摘要: A system for transmitting signals includes Orbital Angular Momentum (OAM) processing circuitry for receiving a plurality of input signals and applying a different orbital angular momentum to each of the plurality of input signals for transmission to a second location. Electromagnetic knot processing circuitry receives a plurality of OAM processed signals from the OAM processing circuitry and applies an electromagnetic knot to each of the received OAM processed signal before transmission to the second location. Multiplexing circuitry multiplexes the plurality of OAM/electromagnetic knot processed signals into a single multiplexed OAM/electromagnetic knot processed signal. A first signal degradation caused by environmental factors of the OAM/electromagnetic knot processed signal is improved over a second signal degradation caused by the environmental factors of a signal not including the electromagnetic knot. A transmitter transmits the single multiplexed OAM/electromagnetic knot processed signal to the second location.