A multifunctional metasurface with integrated absorption and polarization rotation

作者：Zhou, Yulong; Cao, Xiangyu^*; Gao, Jun^*; Yang, Huanhuan; Zheng, Yuejun; Li, Sijia

来源：Materials Research Express, 2019, 6(1): 015802.

DOI：10.1088/2053-1591/aae640

• metasurface
• absorption
• polarization rotation

A multifunctional metasurface with integrated absorption and polarization rotation is proposed and investigated. The unit cell is composed of a cross arrow in the middle and a square loop on the outside loaded with four-sided lumped resistors. The absorption is mainly achieved by the outside resistor-loaded loop, and the polarization rotation is obtained in virtue of the combination of the outside loop and the central asymmetric structure. Simulated results show that the proposed metasurface obtains a polarization-insensitive absorption from 4.2 GHz to 5.0 GHz, a wideband linear-to-linear polarization rotation from 11.65 GHz to 16.10 GHz and a linear-to-circular polarization rotation from 17.7 GHz to 20 GHz. To verify the design, the proposed metasurface is fabricated and measured. The experimental results agree well with the simulated results.

• 出版日期2019-1
• 单位中国人民解放军空军工程大学