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    • 5. 发明申请
    • RADIO DEVICE
    • 无线电设备
    • US20150263418A1
    • 2015-09-17
    • US14572826
    • 2014-12-17
    • FUJITSU LIMITED
    • Yusuke Suzuki
    • H01Q1/48H01Q21/06
    • H01Q1/48H01Q21/28
    • A radio device includes a rectangular substrate including first and second opposite sides and third and fourth opposite sides; a ground plane formed in the substrate, cut out along the third side from a corner at one end of the second side; a first monopole antenna extending away from the ground plane along the third side from a first feeding unit provided on the third side; a second monopole antenna extending away from the ground plane along the fourth side from a second feeding unit provided on the fourth side; and a ground element formed in the ground plane, extending toward the second side along the third side, from one end of the ground element connected to the ground plane. A length from the first feeding unit through the one end to another end of the ground element corresponds to one fourth of a wavelength of radio waves.
    • 无线电设备包括:矩形基板,包括第一和第二相对侧面以及第三和第四相对侧面; 形成在所述基板上的接地平面,沿着所述第三侧从所述第二侧的一端的角部切出; 第一单极天线,其从设置在第三侧的第一馈电单元沿第三侧延伸离开接地平面; 第二单极天线,其从设置在第四侧的第二馈电单元沿第四侧延伸离开接地平面; 以及接地元件,其形成在接地平面中,从连接到接地平面的接地元件的一端沿着第三侧向第二侧延伸。 从第一馈电单元通过接地元件的一端到另一端的长度对应于无线电波的波长的四分之一。