Wang Xin, Hou Yifan, Wang Junlin, Chen Qin, Guo Yunsheng, Yu Yibo, Zhou Tao, Li Le, Wang Yang
Opt Express. 2025 Jul 28;33(15):31958-31976. doi: 10.1364/OE.569369.
This paper proposes what we believe to be a novel reconfigurable dual-polarized metasurface antenna. The design consists of a central radiation patch, a semi-enclosed structure, and adjustable resistors. The proposed unit structure not only exhibits excellent radiation performance but also achieves a 180° scattering phase difference for both x-polarization and y-polarization by adjusting the resistance values of the variable resistors. Moreover, the radiation and scattering functions operate independently without mutual interference. Based on this, a tunable array with complex scattering capabilities is developed, enabling functionalities such as dual-beam, quad-beam, and radar cross section (RCS) reduction. By adjusting the antenna's feeding network, the radiation beam can be deflected to enable fixed-point detection of targets at specific angles. The antenna achieves an impedance matching bandwidth from 9 GHz to 10.6 GHz and a peak gain of 23.2 dBi, demonstrating excellent bandwidth and gain performance. Finally, the proposed design was fabricated and experimentally tested, and the measured results show good agreement with the simulations.
本文提出了一种我们认为新颖的可重构双极化超表面天线。该设计由一个中心辐射贴片、一个半封闭结构和可调电阻组成。所提出的单元结构不仅具有优异的辐射性能，而且通过调整可变电阻的阻值，在x极化和y极化上都实现了180°的散射相位差。此外，辐射和散射功能独立运行，互不干扰。基于此，开发了一种具有复杂散射能力的可调阵列，实现了双波束、四波束和雷达散射截面（RCS）缩减等功能。通过调整天线的馈电网络，辐射波束可以偏转，以实现对特定角度目标的定点检测。该天线实现了9 GHz至10.6 GHz的阻抗匹配带宽和23.2 dBi的峰值增益，展现出优异的带宽和增益性能。最后，对所提出的设计进行了制作和实验测试，测量结果与仿真结果吻合良好。
