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首页> 外文会议>International Workshop on Microwave and Millimeter Wave Circuits and System Technology >A low-profile two-arm Archimedean spiral antenna radiating a circularly polarized normal beam or conical beam
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A low-profile two-arm Archimedean spiral antenna radiating a circularly polarized normal beam or conical beam

机译：浅轮廓的双臂阿基米德螺旋天线辐射圆偏振的正常梁或圆锥形梁

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摘要

A two-arm Archimedean spiral antenna (TAS) is proposed to provide a circularly polarized (CP) normal beam or conical beam. The antenna is fed by coaxial lines without a balun circuit. When it is excited out of phase, a CPnormal beam which is almost symmetric with respect to the antenna axis is produced. While excited in phase, it radiates a CP conical beam. The antenna height is chosen to be extremely small to realize a low-profile antenna. The simulated results show that the antenna has a good VSWR and a good axial ratio over the frequency range of 1.8GHz to 2.1GHz.
机译：提出了一种双臂Archimedean螺旋天线（TA）以提供圆极化（CP）正常梁或锥形梁。天线通过同轴线馈送，没有平衡平衡的电路。当它被激发出来时，产生几乎对对天线轴对称的CPnormal的光束。在阶段激发，它辐射CP圆锥形梁。选择天线高度非常小，以实现低调天线。模拟结果表明，天线具有良好的VSWR和频率范围为1.8GHz至2.1GHz的良好轴向比。

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