利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

9 条记录 (耗时 0.019 秒)

    CIRCUIT AND WIRELESS DEVICE
    4.
    发明申请
    CIRCUIT AND WIRELESS DEVICE 有权

    公开(公告)号：US20210044014A1

    公开(公告)日：2021-02-11

    申请号：US16978146

    申请日：2019-02-26

    申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    发明人： Takana KAHO ,  Doohwan LEE ,  Hirofumi SASAKI ,  Yasunori YAGI ,  Takashi SHIMIZU

    IPC分类号： H01Q1/52 ,  H01P3/08 ,  H03F3/19 ,  H01P5/16 ,  H04B1/04

    摘要： A circuit includes a first input and output terminals to which a current, a voltage, or an electromagnetic wave (referred to as “current or the like” below) is applied, a second input and output terminals to which the current or the like is applied, a first board including a matrix circuit which is formed by a first line and includes a 90-degree hybrid circuit and a delay line, the first line in which one end is connected to the first input and output terminals and a tip of the other end is opened, a second board including a second line in which one end is connected to the second input and output terminals, and a tip of the other end is opened, and a shielding plate including an opening portion.

    RECEPTION APPARATUS, AND RECEPTION METHOD
    6.
    发明公开
    RECEPTION APPARATUS, AND RECEPTION METHOD 审中-公开

    公开(公告)号：US20230412243A1

    公开(公告)日：2023-12-21

    申请号：US18252080

    申请日：2020-11-17

    申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    发明人： Doohwan LEE ,  Hirofumi SASAKI ,  Yasunori YAGI ,  Takayuki YAMADA ,  Tomoki SEMOTO ,  Jun MASHINO

    IPC分类号： H04B7/08 ,  H01Q3/32 ,  H04B7/0404

    CPC分类号： H04B7/084 ,  H01Q3/32 ,  H04B7/0404

    摘要： A reception device includes a first antenna, a second antenna, and a control unit that combines signals of a radio wave in a first orbital angular momentum (OAM) mode and a radio wave in a second OAM mode having a sign only that is different from a sign of the first OAM mode, received by the first antenna, with signals obtained by rotating OAM phases of the radio wave in the first OAM mode and the radio wave in the second OAM mode received by the second antenna by a predetermined angle to extract a signal of the radio wave in the first OAM mode, and combines signals of the radio wave in the first OAM mode and the radio wave in the second OAM mode received by the second antenna with signals obtained by rotating OAM phases of the radio wave in the first OAM mode and the radio wave in the second OAM mode received by the first antenna by the predetermined angle to extract a signal of the radio wave in the second OAM mode.