Antenna devices
    1.
    发明授权

    公开(公告)号:US10249939B2

    公开(公告)日:2019-04-02

    申请号:US15035073

    申请日:2013-11-25

    Abstract: An antenna device for a signal having a frequency within an operation band comprises a ground element, a radiating element short-circuited to the ground element, a positive feed connected to the radiating element, and a ground feed coupled to the ground element by a capacitive element. The capacitive element is a substantially open circuit for signals having a frequency lower than the operation band. The capacitive element is a substantially short circuit for signals having a frequency within or higher than the operation band.

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