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A chiral metamaterial with high reflectance for antenna applications
Microwave and Optical Technology Letters ( IF 1.5 ) Pub Date : 2021-02-02 , DOI: 10.1002/mop.32812
Chunling Chen 1 , Zhen‐Guo Liu 2 , Hao Wang 3
Affiliation  

In this article, a chiral metamaterial (CMM) with high reflectance is constructed by using both the S‐shaped strip and the grid strip. Numerical simulation results reveal that the reflectance reaches 0.7 and the transmitted wave is converted from y‐polarization to left‐hand circular polarization. Therefore, the proposed CMM has the function of polarized transformation from linear polarization (LP) wave to circular polarization (CP). In addition, a Fabry‐Perot resonator cavity‐like behavior is found in the CMM itself. We design and measure a CP CMM‐based Fabry‐Pérot resonator cavity antenna. A bandwidth of 13.25% (|S11| < −10 dB, AR < 3 dB, and peak gain drop<3 dB) and a peak gain of 14.76 dBic are attained. The proposed antenna has potential applications in advanced nanosatellite communication systems.

中文翻译:

具有高反射率的手性超材料,用于天线应用

在本文中,通过使用S形条和网格条构造了具有高反射率的手性超材料(CMM)。数值模拟结果表明,反射率达到0.7,透射波从y偏振转换为左旋圆偏振。因此,所提出的坐标测量机具有从线性偏振(LP)波到圆形偏振(CP)的偏振变换的功能。此外,在CMM本身中发现了Fabry-Perot谐振腔类似的行为。我们设计和测量基于CP CMM的Fabry-Pérot谐振腔天线。达到13.25%的带宽(| S11 | <-10 dB,AR <3 dB,峰值增益下降<3 dB)和峰值增益14.76 dBic。拟议中的天线在先进的纳米卫星通信系统中具有潜在的应用。
更新日期:2021-04-12
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