In this paper, an antenna-to-antenna method to design high-efficiency polarization converters was proposed. Two in-linked split ring resonators (SRRs) were used as the fundamental unit cell, which can effectively make the original linear polarization angle deflected into a customized one (include but not limited to 90°). The same as the process of energy reception and transmitting of microstrip symmetric dipole antennas, the top SRR plays the role of a receiving antenna and the bottom one acts as a transmitting antenna. Under normal illumination, the strong coupling between electric resonance and magnetic resonance can result in high transmission and broad bandwidth. Since the two SRRs act as two independently polarization selective components, the polarization angle of transmitted waves can be easily controlled by rotating the transmitting SRRs around the center. The proposed concept and the design method are validated using numerical simulations, as well as experimental results of three examples for 45, 60 and 90° polarization angle rotation, the polarization conversion ratio of which is about 92.2, 88.9 and 91.9% from 7.5 to 10 GHz.

中文翻译：

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用于定制极化角偏转的高效天线到天线极化转换器

在本文中，提出了一种设计高效极化转换器的天线到天线方法。采用两个内联裂环谐振器（SRR）作为基本晶胞，可以有效地使原来的线偏振角偏转成定制的（包括但不限于90°）。与微带对称偶极子天线的能量接收和发射过程相同，顶部SRR作为接收天线，底部作为发射天线。在正常光照下，电共振和磁共振之间的强耦合可以导致高传输和宽带宽。由于两个 SRR 作为两个独立的极化选择组件，通过围绕中心旋转发射 SRR，可以很容易地控制发射波的偏振角。所提出的概念和设计方法通过数值模拟以及 45、60 和 90° 偏振角旋转的三个示例的实验结果进行了验证，其偏振转换率从 7.5 到 10 分别约为 92.2、88.9 和 91.9%千兆赫。