Small dipole antenna
    3.
    发明授权

    公开(公告)号:US11251532B2

    公开(公告)日:2022-02-15

    申请号:US17054500

    申请日:2019-05-09

    IPC分类号: H01Q9/28 H01Q5/48 H01Q1/32

    摘要: The present invention relates to a small dipole antenna, and more specifically, to a small dipole antenna comprising a balun, a meander line, and a cap covering the meander line as a whole, wherein both sides of the dipole antenna are provided with the meander line to minimize the overall size of the dipole antenna. The small dipole antenna according to one embodiment of the present invention obtains resonance frequency adjustment characteristics by filling a gap between the arrangement of the meander line disposed on the both sides of the dipole antenna on the basis of the balun and the meander line, and adds a short circuit between the meander line to achieve impedance matching and minimize the overall size of the dipole antenna structure at the same time, thereby having the effect of ensuring tractability of antenna operation regardless of external conditions when measuring electromagnetic wave performance.

    SMALL DIPOLE ANTENNA
    4.
    发明申请

    公开(公告)号:US20210194137A1

    公开(公告)日:2021-06-24

    申请号:US17054500

    申请日:2019-05-09

    IPC分类号: H01Q9/28 H01Q5/48

    摘要: The present invention relates to a small dipole antenna, and more specifically, to a small dipole antenna comprising a balun, a meander line, and a cap covering the meander line as a whole, wherein both sides of the dipole antenna are provided with the meander line to minimize the overall size of the dipole antenna. The small dipole antenna according to one embodiment of the present invention obtains resonance frequency adjustment characteristics by filling a gap between the arrangement of the meander line disposed on the both sides of the dipole antenna on the basis of the balun and the meander line, and adds a short circuit between the meander line to achieve impedance matching and minimize the overall size of the dipole antenna structure at the same time, thereby having the effect of ensuring tractability of antenna operation regardless of external conditions when measuring electromagnetic wave performance.

    Coil structure for inductive and resonant wireless charging transmitter and integral control method for the same

    公开(公告)号:US10461564B2

    公开(公告)日:2019-10-29

    申请号:US15369032

    申请日:2016-12-05

    发明人: KyuBong Yeon DuHo Lee

    摘要: Provided is a wireless power transmitter including a first coil disposed to transmit wireless power, a second coil disposed outside of the first coil to transmit wireless power, and a controller configured to determine whether to operate the wireless power transmitter in a magnetic induction mode or a magnetic resonance mode, control the first coil to operate in the magnetic induction mode and prevent the second coil from operating in the magnetic induction mode in response to the determination to operate the wireless power transmitter in the magnetic induction mode, and control the first coil and the second coil to operate integrally in the magnetic resonance mode in response to the determination to operate the wireless power transmitter in the magnetic resonance mode.

    TWO-STAGE TRANSMISSION FOR ELECTRIC VEHICLE
    8.
    发明申请

    公开(公告)号:US20190072158A1

    公开(公告)日:2019-03-07

    申请号:US16085068

    申请日:2017-03-14

    摘要: A two-stage transmission for an electric vehicle of the present invention comprises: a gearbox unit; a driving unit for providing power into the gearbox unit; a sun gear unit embedded in the gearbox unit and rotated by being axially connected to the driving unit, a planetary gear unit embedded in the gearbox unit, and provided in engagement with an outer side part of the sun gear unit; a carrier unit embedded in the gearbox unit and rotatably supporting the planetary gear unit; a ring gear unit embedded in the gearbox unit, and provided on the outer side of the carrier unit and engaged with the planetary gear unit; a first synchro unit axially connected to the driving unit so as to rotate together with the sun gear unit, and selectively connected to the carrier unit so as to adjust variable speeds; and a second synchro unit mounted in the gearbox unit, and selectively coupled to the ring gear unit so as to adjust variable speeds.

    APPARATUS AND METHOD FOR MANUFACTURING A SEAMLESS PIPE
    10.
    发明申请
    APPARATUS AND METHOD FOR MANUFACTURING A SEAMLESS PIPE 有权
    用于制造无缝管的装置和方法

    公开(公告)号:US20150059426A1

    公开(公告)日:2015-03-05

    申请号:US14368034

    申请日:2012-12-21

    IPC分类号: B21C37/06 B21C25/04 B21C25/02

    摘要: Provided is an apparatus of manufacturing a seamless pipe. The apparatus includes a container receiving a work therein, a stem pressing one end of the work within the container, a die installed in a direction opposite to the stem, and having an extrusion hole comprised of a plurality of ports, a rotation member installed on a front end of the die, having a stirring tip inserted into a joint surface formed by abutting a plurality of metal pieces to each other on one surface, and rotating to perform a friction stir bonding in a state in which the one surface contacts the joint surface, and a correction mold including a metal pipe discharging path receiving a metal pipe manufactured by the friction stir bonding and discharging the metal pipe to an outside.

    摘要翻译: 提供一种制造无缝管的装置。 该装置包括容纳工件的容器,将工件的一端压入容器内的模具,沿与杆相反的方向安装的模具,并具有由多个端口组成的挤压孔,旋转构件安装在 模具的前端具有插入到通过在一个表面上彼此抵靠多个金属片而形成的接合表面中的搅拌尖端,并且在一个表面接触接头的状态下旋转以进行摩擦搅拌接合 表面,以及具有金属管排出路径的修正模具,该金属管排出路径容纳通过摩擦搅拌接合制造的金属管,并将金属管排出到外部。