BROADBAND PATCH ANTENNA
    4.
    发明申请

    公开(公告)号:US20220344822A1

    公开(公告)日:2022-10-27

    申请号:US17753809

    申请日:2019-10-17

    Abstract: A broadband patch antenna comprises a substrate, a ground plate attached to one surface of the substrate, a radiation plate attached to the other surface of the substrate opposite the one surface of the substrate, and a feed line attached to the other surface of the substrate and having one end connected to the radiation plate. The feed line comprises a first line and a second line. The ground plate has the shape of capital “L” having a first groove, a second groove, and a third groove, and may not comprise a portion corresponding to the radiation plate. The first groove is positioned at a first portion which corresponds to a connection portion between the first line and the radiation plate, the second groove is positioned at a second portion which corresponds to a connection portion between the second line and the radiation plate, and the third groove may be positioned so as to be spaced apart from the first groove and the second groove.

    ELECTRIC MOTOR AND HERMETIC COMPRESSOR HAVING THE SAME

    公开(公告)号:US20220209597A1

    公开(公告)日:2022-06-30

    申请号:US17524938

    申请日:2021-11-12

    Abstract: A hermetic compressor includes an electric motor that includes a rotor having a plurality of permanent magnets inserted into a rotor core, a connection part made of a non-magnetic material and provided at an axial end portion of the rotor core, and an inertial core made of a magnetic material and provided at an axial end of the connection part. The connection part includes a plurality of first fixing portions, a plurality of second fixing portions spaced apart from the plurality of first fixing portions in an axial direction, and a plurality of link portions disposed between the plurality of first fixing portions and the plurality of second fixing portions.

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