In this work, a sub-wavelength FSS with a novel interconnected open loop structure governed by coupling mechanism is proposed. An ultrawide stop-band ranging from 1.01 to 9.84 GHz is obtained with this structure. The proposed FSS is printed on both sides of a single substrate, with square loops on one side and interconnected open loop pairs on the other side. This FSS is ultra-miniaturized with a unit cell dimension of $0.04{\lambda }_0\times 0.04{\lambda }_0\times 0.0027{\lambda }_0$ where ${\lambda }_0$ is the free space wavelength at the lower cut-off frequency. The designed FSS provides a stable bandwidth for TE and TM polarizations for oblique incident angles up to 45$°$. Parametric and circuit analysis is performed to validate the designed FSS. The fabricated prototype shows good concordance with the simulated model results.

在这项工作中，提出了一种具有耦合机制控制的新型互连开环结构的亚波长FSS。通过这种结构，可以获得1.01至9.84 GHz的超宽阻带。拟议的FSS印刷在单个基板的两面，一侧为方形环，另一侧为互连的开环对。该FSS超小型化，其晶胞尺寸为$0.04{\lambda }_0\times 0.04{\lambda }_0\times 0.0027{\lambda }_0$ 哪里 ${\lambda }_0$是较低截止频率处的自由空间波长。设计的FSS为TE和TM偏振提供了稳定的带宽，斜入射角最大为45$°$。执行参数和电路分析以验证设计的FSS。所制作的原型与仿真模型结果显示出良好的一致性。