利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

40 条记录 (耗时 0.012 秒)

    Internally branch fed slotted coaxial antenna
    3.
    发明授权
    Internally branch fed slotted coaxial antenna 有权
    内部分支进给槽式同轴天线

    公开(公告)号：US06320555B1

    公开(公告)日：2001-11-20

    申请号：US09735910

    申请日：2000-12-14

    申请人： John L. Schadler

    发明人： John L. Schadler

    IPC分类号： H01Q1312

    CPC分类号： H01Q21/0062

    摘要： A slotted coaxial antenna design that accomplishes four-way branch feeding without the use of feedlines, is disclosed. In a preferred embodiment, the antenna design is based on a number of layered coaxial feeds where each layer feeds the next outer layer. The internally branch fed slotted coaxial antenna design produces substantially no beam sway over at least four television channels, can accommodate pressurizing for increased power handling, and provides desirable antenna output response performance suitable for digital TV transmission and NTSC antenna systems.

    摘要翻译： 公开了一种在不使用馈线的情况下实现四通分支馈线的开槽同轴天线设计。 在优选实施例中，天线设计基于多层分层同轴馈送，其中每层馈送下一个外层。 内部分支馈线槽同轴天线设计在至少四个电视频道上基本上不产生光束摆动，可以适应加压以增加功率处理，并且提供适合于数字电视传输和NTSC天线系统的期望的天线输出响应性能。

    S-band coaxial slot array antenna
    4.
    发明授权
    S-band coaxial slot array antenna 失效
    S波段同轴插槽阵列天线

    公开(公告)号：US4631544A

    公开(公告)日：1986-12-23

    申请号：US722097

    申请日：1985-04-10

    申请人： George Ploussios

    发明人： George Ploussios

    IPC分类号： H01Q21/00 ,  H01Q21/20 ,  H01Q13/10

    CPC分类号： H01Q21/0062 ,  H01Q21/205

    摘要： An S-band antenna with a body having an inner circular tube and a coaxial outer circular tube in which the circumference of the outer tube is one wave length of S-band radar. A plurality of pairs of axially elongated slots are provided in the outer tube in which the slots of each pair are diametrically opposed to each other. Adjacent pairs of slots are axially displaced from each other a distance of one-half wave length. The pairs of slots are rotationally offset at an angle equal to 360/N where N is the number of pairs. A dielectric cover is provided around the outer tube.

    摘要翻译： 一种具有内圆管和同轴外圆管的主体的S带天线，其中外管的周长是S波段雷达的一个波长。 在外管中设置有多对轴向细长的狭槽，其中每对的槽彼此径向相对。 相邻的一对槽相互间隔一半波长的距离。 成对的槽以等于360 / N的角度旋转偏移，其中N是对数。 在外管周围设置电介质盖。

    BEAMFORMING VIA SPARSE ACTIVATION OF ANTENNA ELEMENTS CONNECTED TO PHASE ADVANCE WAVEGUIDES
    7.
    发明公开
    BEAMFORMING VIA SPARSE ACTIVATION OF ANTENNA ELEMENTS CONNECTED TO PHASE ADVANCE WAVEGUIDES 审中-公开

    公开(公告)号：US20240047870A1

    公开(公告)日：2024-02-08

    申请号：US18452864

    申请日：2023-08-21

    申请人： Elwha, LLC

    发明人： Guy S. Lipworth

    IPC分类号： H01Q3/26 ,  H01Q21/00 ,  H01Q21/06 ,  H01Q3/24

    CPC分类号： H01Q3/2658 ,  H01Q21/0062 ,  H01Q21/065 ,  H01Q3/24

    摘要： Systems and methods described herein include a two-dimensional antenna array of antenna pixels having length and width dimensions of less than one-half of an operational wavelength. In various examples, each antenna pixel comprises a fixed number of phase-adjustable antenna elements. The antenna elements of each antenna pixel may be coupled to the waveguide with interelement spacings selected to associate each antenna element with a distinct phase advance value. A controller identifies a target phase value for each antenna pixel that corresponds to a target beamform for the two-dimensional antenna. A controller activates and adjusts a phase response of one of the antenna elements in each antenna pixel, such that the phase advance value associate with the activated antenna element and the adjusted phase response combine to attain the target phase value for the antenna pixel as a whole.

    TERAHERTZ CARRIER SENDING APPARATUS AND TERAHERTZ CARRIER RECEIVING APPARATUS
    8.
    发明公开
    TERAHERTZ CARRIER SENDING APPARATUS AND TERAHERTZ CARRIER RECEIVING APPARATUS 审中-公开

    公开(公告)号：US20230344145A1

    公开(公告)日：2023-10-26

    申请号：US18216433

    申请日：2023-06-29

    申请人： HUAWEI TECHNOLOGIES CO., LTD.

    发明人： Luqi ZHANG ,  Kun LI ,  Rui LYU ,  Xin XIAO

    IPC分类号： H01Q21/00 ,  H01Q1/38 ,  H01Q21/28

    CPC分类号： H01Q21/0062 ,  H01Q1/38 ,  H01Q21/28

    摘要： The present disclosure describes a terahertz carrier sending apparatus and a terahertz carrier receiving apparatus. The sending apparatus includes a radio frequency sending chip, a mode conversion structure, a terahertz transmission line, and a circuit board. The radio frequency sending chip is packaged on the circuit board, and includes a radio frequency sending circuit, a feed transmission line, and a mode excitation structure. The mode conversion structure includes a metal inner wall, configured to couple a terahertz signal excited by the mode excitation structure into the terahertz transmission line. The terahertz transmission line is configured to transmit the terahertz signal. The receiving apparatus includes a similar part in a receiving direction. The subject matter herein implements efficient electromagnetic coupling and improves data transmission bandwidth.

    Multi-slot common aperture dual polarized omni-directional antenna
    10.
    发明授权
    Multi-slot common aperture dual polarized omni-directional antenna 有权

    公开(公告)号：US09425515B2

    公开(公告)日：2016-08-23

    申请号：US14846117

    申请日：2015-09-04

    申请人： LHC2 INC

    发明人： Royden M. Honda ,  Robert J. Conley ,  Jon Thorpe

    IPC分类号： H01Q13/12 ,  H01Q21/00 ,  H01Q21/20

    CPC分类号： H01Q21/0062 ,  H01Q13/12 ,  H01Q21/00 ,  H01Q21/20

    摘要： Horizontally polarized and dual polarized antennas are described herein. In some examples, a horizontally polarized and dual polarized antenna may be mounted or operated with the physical vertical axis of the antenna being substantially perpendicular to a plane defined by the surface of the earth, and emanate an electric field that is parallel to the surface of the earth. The antenna may have a multi-slot aperture that reduces a variation in the far field omni-directional pattern. The antenna may have various cross-sectional configurations, and may have a radome at least partially surrounding the antenna and a supporting structure.