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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >A high-gain bow-tie antenna with phase gradient metasurface lens
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A high-gain bow-tie antenna with phase gradient metasurface lens

机译：具有相位梯度元表面镜头的高增益蝴蝶结天线

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摘要

A high-gain bow-tie antenna with double-layer phase-gradient metasurface (PGMS) lens is proposed. A modified bow-tie antenna is designed as a feed, which has end-fire characteristics. The proposed PGMS can transform quasi-spherical electromagnetic wave to plane wave within the frequency band from 1.7 to 2.1 GHz, thereby the proposed lens antenna has a good beam focusing effect. The measured gain is from 9.5 to 12.8 dBi and a -3 dB gain bandwidth of around 20% is achieved. At the same time, the gain increases 6.5 dB on average in the whole working frequency band. Simulated and measured results show that the designed modified bow-tie antenna with PGMS lens has high gain and high directivity, which can well meet the requirement of microwave imaging system.
机译：提出了具有双层相位梯度元表面（PGMS）镜头的高增益弓形天线。 改进的蝴蝶结天线设计为饲料，具有最终火灾特性。 所提出的PGM可以将准球形电磁波转换为从1.7到2.1GHz的频带内的平面波，从而提出的透镜天线具有良好的光束聚焦效果。 测量的增益为9.5至12.8dBI，实现-3 dB增益带宽约为20％。 同时，整个工作频带平均增益增加了6.5 dB。 模拟和测量结果表明，具有PGMS镜头的设计改进的蝴蝶结天线具有高增益和高方向性，可以很好地满足微波成像系统的要求。

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  • 作者

    Ziye Wang; Zhengwei Yang; Weihua Zeng; Xiao Zhao; Linyan Guo; Minjie Guo;

  • 作者单位

    School of Geophysics and Information Technology China University of Geosciences Beijing China;

    School of Geophysics and Information Technology China University of Geosciences Beijing China;

    School of Geophysics and Information Technology China University of Geosciences Beijing China;

    School of Geophysics and Information Technology China University of Geosciences Beijing China;

    School of Geophysics and Information Technology China University of Geosciences Beijing China;

    School of Geophysics and Information Technology China University of Geosciences Beijing China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    focusing; high gain; modified bow-tie antenna; PGMS;

    机译：聚焦;高增益;改进的蝴蝶结天线;PGM;

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