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Wideband, co-polarization anomalous reflection metasurface based on low-Q resonators

机译：基于低Q谐振器的宽带，同极化异常反射超表面

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摘要

Wideband anomalous reflection using metasurface is usually accompanied by polarization conversion, which changes the polarization state of reflected waves. In this paper, we propose to realize wideband, co-polarization anomalous reflection using reflective phase gradient metasurface (PGM). To this end, a resonator with low quality factor Q is firstly designed as the elementary sub-unit of the PGM. Due to the wideband magnetic resonance of the resonator, nearly constant phase gradient can be achieved in a quite wideband from 14.0 to 21.0 GHz. Both the simulation and experiment verify the wideband, co-polarization anomalous reflection using the PGM. Since the polarization of reflected wave is unchanged after reflection, such PGMs can be used in many applications such as reflect array antennas, beam-steering antennas and radar cross-section reduction.
机译：使用超颖表面的宽带异常反射通常伴随着偏振转换，从而改变了反射波的偏振状态。在本文中，我们建议使用反射相位梯度超颖表面（PGM）实现宽带，同极化异常反射。为此，首先将具有低品质因数Q的谐振器设计为PGM的基本子单元。由于谐振器的宽带磁共振，在从14.0 GHz到21.0 GHz的相当宽的带宽中，可以实现几乎恒定的相位梯度。仿真和实验均使用PGM验证了宽带，共极化异常反射。由于反射后反射波的极化没有改变，因此这种PGM可用于许多应用中，例如反射阵列天线，波束控制天线和雷达横截面缩小。

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  • 来源
    《Applied Physics》 |2016年第9期|851.1-851.6|共6页
  • 作者

    Yongfeng Li; Jieqiu Zhang; Yaodong Zhang; Hongya Chen; Ya Fan;

  • 作者单位

    College of Science, Air Force Engineering University, Xi'an 710051, Shaanxi, China;

    College of Science, Air Force Engineering University, Xi'an 710051, Shaanxi, China;

    College of Science, Air Force Engineering University, Xi'an 710051, Shaanxi, China;

    College of Science, Air Force Engineering University, Xi'an 710051, Shaanxi, China;

    College of Science, Air Force Engineering University, Xi'an 710051, Shaanxi, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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