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    • 10. 发明授权
    • Variable directional antenna
    • 可变方向天线
    • US08508426B2
    • 2013-08-13
    • US12698703
    • 2010-02-02
    • Atsushi HondaIchirou IdaYasuyuki Oishi
    • Atsushi HondaIchirou IdaYasuyuki Oishi
    • H01Q19/10H01Q1/38H01Q19/00
    • H01Q3/44H01Q3/446H01Q19/28
    • A variable directional antenna by means of a microstrip antenna and reactance change. The variable directional antenna has a structure to reduce sidelobes occurring when an element interval is reduced, and is structured in a three-element plane, having a feeding element and non-feeding elements provided at both sides of the feeding element. Each of the non-feeding elements provided at both sides of the feeding element has two split non-feeding elements two-divided into sizes of 1:2 in the lateral direction. The split non-feeding element divided into the size 1 is provided closer to the feeding element, and a reactance variable part is connected with the split non-feeding element divided into the size of 2. Alternatively, each of the non-feeding elements provided at both sides of the feeding element has two split non-feeding elements two-divided into sizes of 2:1 in the lateral direction. The split non-feeding element divided into the size 2 is provided closer to the feeding element, and the reactance variable part is connected either with the split non-feeding element divided into the size of 2 or the split non-feeding element divided into the size 1.
    • 通过微带天线和电抗变化的可变定向天线。 可变定向天线具有当元件间隔减小时发生的旁瓣发生并且构造成三元件平面的结构,其具有设置在馈电元件两侧的馈电元件和非馈电元件。 设置在馈电元件两侧的每个非馈送元件具有两个在横向方向上分成2:2的分开的非馈送元件。 被分割成尺寸1的分开的非进给元件被设置成更接近馈送元件,并且电抗可变部分与分为2的尺寸的分开的非馈送元件连接。或者,提供每个非馈送元件 在进给元件的两侧具有两个分开的非进给元件,在横向方向上分成2:1的尺寸。 被分成尺寸2的分割非进给元件设置得更靠近馈送元件,并且电抗可变部分与被分成大小为2的分割非馈送元件或被划分为 大小1。