Metalines with a Patch Antenna
Metalines with a Patch Antenna
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发表时间：
2019-03
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通讯作者：
H. Nakano;T. Abe;J. Yamauchi;A. Pal;A. Mehta
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作者：
H. Nakano;T. Abe;J. Yamauchi;A. Pal;A. Mehta
研究了由金属线和单个贴片组成的天线系统在辐射波束内形成零点的问题。金属线和贴片都印刷在由导电平面支持的薄介质基板上。金属线被同相激发以辐射圆极化(CP)锥形波束，其幅度和相位围绕天线系统的垂直中心轴几乎是恒定的。另一方面，贴片的辐射波束也是CP，它围绕天线系统的垂直中心轴具有几乎恒定的幅度，但具有360度的相移。结果表明，金属的输入激励与贴片的输入激励之间的相位差控制着辐射束内零点的方位角，而输入激励的功率差则控制着俯仰角。
An antenna system composed of metalines and a single patch is investigated for forming a null within the radiation beam. Both the metalines and patch are printed on a thin dielectric substrate backed by a conducting plane. The metalines are excited in phase to radiate a circularly polarized (CP) conical beam, whose magnitude and phase are almost constant around the vertical center axis of the antenna system. On the other hand, the radiated beam from the patch, which is also CP, has an almost constant magnitude around the vertical center axis of the antenna system, but has a 360-degree shift in the phase. It is found that the phase difference between the input excitation of the metalines and the input excitation of the patch controls the azimuth angle of a null within the radiation beam, while the power difference of the input excitations controls the elevation angle.