Antenna structure and wireless communication device using same

    公开(公告)号:US09905913B2

    公开(公告)日:2018-02-27

    申请号:US15651037

    申请日:2017-07-17

    摘要: An antenna structure includes a metal housing, a first feed portion, a first ground portion, a second ground portion, and a radiator. The metal housing includes a front frame, a backboard, and a side frame. The side frame defines a slot and the front frame defines a gap. The metal housing is divided into at least a long portion and a short portion by the slot and the gap. One end of the first feed portion is electrically connected to the long portion for feeding current to the long portion and another end of the first feed portion is electrically connected to the backboard. The first and second ground portions are both electrically connected to the long portion for grounding the long portion. The radiator is positioned in the metal housing, electrically connected to the backboard, and is spaced apart from the short portion.

    PCB embedded radiator antenna with exposed tuning stub

    公开(公告)号:US09893426B2

    公开(公告)日:2018-02-13

    申请号:US14922598

    申请日:2015-10-26

    发明人: Semyon Lapushin

    IPC分类号: H01Q9/04 H01Q1/24 H01Q1/38

    摘要: A printed circuit board (PCB) antenna includes a main antenna radiator element embedded within substrate material of a multilayered PCB such that the main antenna radiator element is formed on, or within, a different substrate layer than other components of the PCB antenna. The PCB antenna includes a first PCB substrate, and a first conductive pattern formed on the first PCB substrate, where the first conductive pattern comprises an antenna radiator. The PCB antenna includes a second PCB substrate that is affixed to a first side of the first PCB substrate, and includes a second conductive pattern formed on the second PCB substrate, where the second conductive pattern comprises an antenna ground connection, and an antenna feed connection. The antenna ground connection and the antenna feed connect, through substrate material, to a first end of the antenna radiator of the first PCB substrate.

    ANTENNA SYSTEM FOR MATCHING AN IMPEDANCE
    68.
    发明申请

    公开(公告)号:US20180034157A1

    公开(公告)日:2018-02-01

    申请号:US15659416

    申请日:2017-07-25

    摘要: Embodiments of the present invention relate to an antenna [100] for matching an impedance between a feed point [140] and a radiator [110], comprising: the radiator [110] mounted, over a printed circuit board, has a first end and a second end; a flare [130] for matching the impedance, wherein the flare [130] has a first end and a second end, and the flare [130] is taper-shaped from the first end to the second end of the flare [130]; the feed point [140] comprises a first end and a second end, wherein the first end of the feed point [140] is connected to the second end of the flare [130], and the second end of the feed point [140] is connected to the printed circuit board; and a shorting stub [150] placed between the flare [130] and the printed circuit board for grounding a capacitance induced by the antenna [100].

    RF TAG ANTENNA AND METHOD FOR MANUFACTURING SAME, AND RF TAG

    公开(公告)号:US20180032853A1

    公开(公告)日:2018-02-01

    申请号:US15550344

    申请日:2016-02-08

    摘要: [Problem to be Solved]To provide an RF tag antenna capable of improving readability and a method of manufacturing the same, and an RF tag.[Solution]An RF tag antenna 10 according to an embodiment includes a first insulating substrate 40 having a first principal surface and a second principal surface, a first waveguide device 20 provided on the first principal surface, a second waveguide device 30 provided on the second principal surface, a power feeding part 50 electrically connected to the second waveguide device 30 at one end thereof, and a short-circuit part 60 electrically connected to the first waveguide device 20 at one end thereof and to the second waveguide device 30 at another end thereof, the first insulating substrate 40, the first waveguide device 20, the second waveguide device 30, the power feeding part 50 and the short-circuit part 60 form a plate-shaped inverted-F antenna that receives a radio wave transmitted from a reader, and an inductor pattern L formed by the first waveguide device 20, the short-circuit part 60, the second waveguide device 30 and the power feeding part 50 and a capacitor 93 formed by the first waveguide device 20, the second waveguide device 30 and the first insulating substrate 40 form a resonant circuit that resonates in a frequency band of the radio wave.

    ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE USING SAME

    公开(公告)号:US20180026350A1

    公开(公告)日:2018-01-25

    申请号:US15651037

    申请日:2017-07-17

    摘要: An antenna structure includes a metal housing, a first feed portion, a first ground portion, a second ground portion, and a radiator. The metal housing includes a front frame, a backboard, and a side frame. The side frame defines a slot and the front frame defines a gap. The metal housing is divided into at least a long portion and a short portion by the slot and the gap. One end of the first feed portion is electrically connected to the long portion for feeding current to the long portion and another end of the first feed portion is electrically connected to the backboard. The first and second ground portions are both electrically connected to the long portion for grounding the long portion. The radiator is positioned in the metal housing, electrically connected to the backboard, and is spaced apart from the short portion.