一种宽带高效反射型超材料极化旋转器
发布时间：2019-05-29 09:56
【摘要】：采用六边形金属贴片状超材料结构,设计并制作了一种宽带、反射型极化旋转器.该结构可以在较宽的工作频带内将特定角度入射的线极化波旋转90°,从而使反射波与入射波极化正交.根据各向异性理论解释了极化旋转器的工作原理,分析了该结构的等效电路,仿真了主要参数对其性能的影响.最终通过实际加工、测试证明了:当电磁波垂直入射时,该结构在8.41~11.3GHz的频带内极化转换率大于90%.
[Abstract]:A broadband and reflective polarization rotator is designed and fabricated by using hexagonal metal patch supermaterial structure. In this structure, the linear polarization wave incident at a specific angle can be rotated 90 掳in a wide working frequency band, so that the reflected wave is orthogonal to the polarization of the incident wave. According to the anisotropy theory, the working principle of the polarization rotator is explained, the equivalent circuit of the structure is analyzed, and the influence of the main parameters on its performance is simulated. Finally, through practical processing, it is proved that when the electromagnetic wave is incident vertically, the polarization conversion rate of the structure in the frequency band of 8.41~11.3GHz is more than 90%.
【作者单位】： 西北工业大学电子信息学院;西北大学信息科学与技术学院;
【基金】：西安爱生创新发展基金资助项目(ASN-IF2015-0901)
【分类号】：O441
[Abstract]:A broadband and reflective polarization rotator is designed and fabricated by using hexagonal metal patch supermaterial structure. In this structure, the linear polarization wave incident at a specific angle can be rotated 90 掳in a wide working frequency band, so that the reflected wave is orthogonal to the polarization of the incident wave. According to the anisotropy theory, the working principle of the polarization rotator is explained, the equivalent circuit of the structure is analyzed, and the influence of the main parameters on its performance is simulated. Finally, through practical processing, it is proved that when the electromagnetic wave is incident vertically, the polarization conversion rate of the structure in the frequency band of 8.41~11.3GHz is more than 90%.
【作者单位】： 西北工业大学电子信息学院;西北大学信息科学与技术学院;
【基金】：西安爱生创新发展基金资助项目(ASN-IF2015-0901)
【分类号】：O441
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