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首页> 外文期刊>Applied Computational Electromagnetics Society journal >Rotated Stacked Yagi Antenna with Circular Polarization for IoT Applications
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Rotated Stacked Yagi Antenna with Circular Polarization for IoT Applications

机译：圆极化旋转堆叠八木天线，用于物联网应用

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摘要

This letter proposes a rotated stacked Yagi antenna with high directivity and circular polarization. The proposed antenna consists of three elements with a rotation angle and different lengths: a director, a reflector, and a driven element connected to the coaxial feeder. The coaxial feeding is connected to the driven element of the proposed antenna via a LC-balun, and the others are coupled with the driven element. Each stacked element with different lengths is equally rotated at an angle of 60 degrees with respect to the lower element so that the dipole array antenna forms a high directive circular polarization. The size of the proposed antenna is 0.49 lambda(0) x 0.49 lambda(0) x 0.17 lambda(0) at 2.45 GHz and achieved a 10 dB impedance bandwidth of 6.3%, a 3 dB axial ratio bandwidth of 8%, and a peak gain of 4.3 dBic.
机译：这封信提出了一种具有高方向性和圆极化的旋转堆叠八木天线。所提出的天线由三个具有不同旋转角度和长度的元件组成：导向器，反射器和连接到同轴馈线的从动元件。同轴馈电通过LC-平衡-不平衡变换器连接到所建议天线的被驱动元件，而其他馈电与被驱动元件耦合。每个具有不同长度的堆叠元件相对于下部元件均等地旋转60度，以使偶极子阵列天线形成高定向圆极化。拟议天线的尺寸在2.45 GHz时为0.49 lambda（0）x 0.49 lambda（0）x 0.17 lambda（0），实现了10 dB的阻抗带宽6.3％，3 dB的轴向比率带宽8％和峰值增益为4.3 dBic。

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