首页> 外文会议>2013 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:一种低矮的两臂阿基米德螺旋天线,辐射圆极化的法线束或圆锥形束

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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:提出了一种两臂阿基米德螺旋天线(TAS),以提供圆极化(CP)常规波束或圆锥形波束。天线由没有平衡-不平衡转换器电路的同轴线馈电。当异相激发时,会产生相对于天线轴几乎对称的CP法线束。当同相激发时,它会辐射出CP锥形束。选择天线高度应非常小,以实现矮型天线。仿真结果表明,该天线在1.8GHz至2.1GHz的频率范围内具有良好的VSWR和良好的轴向比。

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