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    RADIOGRAPHIC INSPECTION DEVICE AND METHOD OF INSPECTING OBJECT
    1.
    发明公开
    RADIOGRAPHIC INSPECTION DEVICE AND METHOD OF INSPECTING OBJECT 审中-公开

    公开(公告)号：US20240103196A1

    公开(公告)日：2024-03-28

    申请号：US18284913

    申请日：2022-01-18

    Applicant: Tsinghua University ,  NUCTECH COMPANY LIMITED

    Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Yi CHENG ,  Qingping HUANG ,  Mingzhi HONG ,  Minghua QIU ,  Yao ZHANG ,  Jianxue YANG ,  Lei ZHENG

    IPC: G01V5/226

    CPC classification number: G01V5/226

    Abstract: A radiographic inspection device and a method of inspecting an object are provided. The radiographic inspection device includes a support frame, where an inspection space applicable to inspect an object is formed within the support frame, and the inspection space has a first opening connecting to an outside; a transfer mechanism applicable to carry the object and move through the inspection space; a shielding curtain mounted at the first opening; and a driving mechanism. The driving mechanism includes: a driver mounted on the support frame; and a joint portion, where an upper end of the shielding curtain is connected to the joint portion. The driver is configured to synchronously drive two ends of the joint portion, so that the shielding curtain moves up and down with the joint portion to open or close the first opening.

    WAVEGUIDE HORN ARRAYS, METHODS FOR FORMING THE SAME AND ANTENNA SYSTEMS
    2.
    发明申请
    WAVEGUIDE HORN ARRAYS, METHODS FOR FORMING THE SAME AND ANTENNA SYSTEMS 有权
    波导霍尔阵列，其形成方法和天线系统

    公开(公告)号：US20150048984A1

    公开(公告)日：2015-02-19

    申请号：US14284642

    申请日：2014-05-22

    Applicant: Tsinghua University ,  Nuctech Company Limited

    Inventor： Ziran ZHAO ,  Zhiqiang CHEN ,  Yuanjing LI ,  Wanlong WU ,  Jieqing YANG ,  Wenguo LIU ,  Xilei LUO ,  Bin SANG ,  Lei ZHENG

    IPC: H01Q13/02 ,  H01Q21/06 ,  H01Q21/00

    CPC classification number: H01Q13/02 ,  H01Q9/0457 ,  H01Q13/0266 ,  H01Q13/0283 ,  H01Q21/0087 ,  H01Q21/06 ,  H01Q21/064 ,  H01Q21/065 ,  Y10T29/49016

    Abstract: There is provided a waveguide horn array, a method for forming the waveguide horn array, and an antenna system. The array includes a rectangular metal plate which is processed to have a cross section comprised of a plurality of rectangular holes arranged in the length direction of the rectangular metal plate, the lower part of each hole being formed as a rectangular waveguide, and the upper part of each hole being formed as a horn; and a groove extending in the direction along which the plurality of holes are arranged and having a predetermined depth, which is formed at two sides of the holes on the top surface of the rectangular metal plate. According to the embodiments, it is possible to maintain the good properties of the antenna in terms of bandwidth and directivity, while enhancing the isolation between the transmitting antenna and the receiving antenna in the system.

    Abstract translation: 提供了波导喇叭阵列，形成波导喇叭阵列的方法和天线系统。 阵列包括矩形金属板，其被处理成具有沿矩形金属板的长度方向布置的多个矩形孔的横截面，每个孔的下部形成为矩形波导，上部 每个孔形成为喇叭; 以及在矩形金属板的上表面上的孔的两侧形成有沿着多个孔布置并具有预定深度的方向延伸的槽。 根据实施例，可以在带宽和方向性方面保持天线的良好性质，同时增强系统中发射天线与接收天线之间的隔离。

    WIDEBAND MICROSTRIP ANTENNAS AND ANTENNA ARRAYS
    5.
    发明申请
    WIDEBAND MICROSTRIP ANTENNAS AND ANTENNA ARRAYS 审中-公开
    宽带微波天线和天线阵列

    公开(公告)号：US20160294070A1

    公开(公告)日：2016-10-06

    申请号：US14246261

    申请日：2014-04-07

    Applicant: Nuctech Company Limited ,  Tsinghua University

    Inventor： Ziran ZHAO ,  Zhiqiang CHEN ,  Yuanjing LI ,  Wanlong WU ,  Yinong LIU ,  Jieqing YANG ,  Wenguo LIU ,  Bin SANG ,  Lei ZHENG

    IPC: H01Q21/08 ,  H01Q1/50 ,  H01Q5/378 ,  H01Q21/00 ,  H01Q9/04

    CPC classification number: H01Q21/08 ,  G03H5/00 ,  H01Q1/50 ,  H01Q1/525 ,  H01Q5/378 ,  H01Q9/045 ,  H01Q9/0457 ,  H01Q13/02 ,  H01Q21/0081 ,  H01Q21/065

    Abstract: There is provided a wideband patch antenna and an antenna array. The antenna includes a dielectric substrate of a rectangle shape, a radiation patch formed on a top surface of the dielectric substrate, a coupling patch formed on the top surface of the dielectric substrate and extending from a side of the dielectric substrate to a position from the radiation patch by a distance, a metal support arranged on the lower surface of the dielectric substrate and extending from the edge of the lower surface of the dielectric substrate downward to the ground, a layer of air having a predetermined thickness being formed between the lower surface of the dielectric substrate and the ground. According to the embodiments, it is possible to improve the directivity of the wideband microstrip antenna while maintaining its small size.

    Abstract translation: 提供了宽带贴片天线和天线阵列。 该天线包括矩形电介质基片，形成在电介质基底的顶表面上的辐射贴片，形成在电介质基底的顶表面上并从电介质基片一侧延伸到从 辐射贴片一段距离，金属支架布置在电介质基片的下表面上并从电介质基底的下表面的边缘向下延伸到地面，具有预定厚度的空气层形成在下表面 的电介质基片和地面。 根据实施例，可以在保持其小尺寸的同时提高宽带微带天线的方向性。

    VEHICLE-MOUNTED SECURITY INSPECTION SYSTEM
    7.
    发明公开
    VEHICLE-MOUNTED SECURITY INSPECTION SYSTEM 审中-公开

    公开(公告)号：US20240176039A1

    公开(公告)日：2024-05-30

    申请号：US18551578

    申请日：2022-01-25

    Applicant: NUCTECH COMPANY LIMITED ,  Tsinghua University

    Inventor： Li ZHANG ,  Zhiqiang CHEN ,  Yi CHENG ,  Qingping HUANG ,  Mingzhi HONG ,  Lei ZHENG

    IPC: G01V5/226

    CPC classification number: G01V5/226

    Abstract: A vehicle-mounted security inspection system includes a mobile chassis. A first cabin provided on the mobile chassis includes an object security inspection apparatus, which is used to perform a security inspection on an object. A second cabin provided on the mobile chassis includes a human body security inspection apparatus which is used to perform a security inspection on a human body. The second cabin is flexibly connected to the first cabin, so that in a first state, the second cabin is located at one end of the first cabin in a longitudinal direction of the mobile chassis, and in a second state, the second cabin is located on one side of the first cabin in the longitudinal direction of the mobile chassis.

    CIRCUITS FOR GENERATING SWEEP FREQUENCY SIGNAL
    10.
    发明申请
    CIRCUITS FOR GENERATING SWEEP FREQUENCY SIGNAL 有权
    用于产生频率信号的电路

    公开(公告)号：US20150048868A1

    公开(公告)日：2015-02-19

    申请号：US14294625

    申请日：2014-06-03

    Applicant: NUCTECH COMPANY LIMITED

    Inventor： Ziran ZHAO ,  Wenguo LIU ,  Zhiqiang CHEN ,  Yuanjing Ll ,  Wanlong WU ,  Yinong LIU ,  Bin SANG ,  Lei ZHENG

    IPC: H03L7/24

    CPC classification number: H03L7/24 ,  H03B23/00 ,  H03L7/22

    Abstract: A circuit to generate a sweep frequency signal that includes a reference frequency source to generate a reference frequency signal, a first frequency combination circuit coupled to the reference frequency source, and operative to generate a sweep frequency signal in a first frequency band based on the reference frequency signal, a second frequency combination circuit coupled to the reference frequency source, and operative to generate a sweep frequency signal in a second frequency band different from the first frequency band based on the reference frequency signal, a multiple-level switch coupled to outputs of the first frequency combination circuit and the second frequency combination circuit, and a control circuit controlling the first and second frequency combination circuits and the multiple-level switch to output the sweep frequency signal in the first frequency band and the sweep frequency signal in the second frequency band at an output of the multiple-level switch alternately.

    Abstract translation: 一种用于产生包括参考频率源以产生参考频率信号的扫频频率信号的电路，耦合到参考频率源的第一频率组合电路，并用于基于参考频率信号产生第一频带中的扫频信号 频率信号，耦合到所述参考频率源的第二频率组合电路，并且可操作以基于所述参考频率信号在与所述第一频带不同的第二频带中产生扫频频率信号;多电平开关， 第一频率组合电路和第二频率组合电路，以及控制电路，控制第一和第二频率组合电路和多电平开关，以输出第一频带中的扫频信号和第二频率中的扫频频率信号 交替地在多级交换机的输出端发送频带。

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