设计了一种基于站立结构的太赫兹超材料增透膜。利用双开口环站立结构实现了对太赫兹波段反射的抑制，使得该增透膜的反射率最低减小至0.001，反射率在0.1以下的带宽可达0.45 THz。分析了该超材料增透膜的工作机理，研究了两个开口环之间的距离以及聚合物基底的厚度对超材料增透膜性能的影响，并与单开口环结构的增透膜进行了性能对比。仿真及分析结果表明，所设计的超材料增透膜具有优异的宽带反射抑制性能和较大的制作参数容差特性。

One kind of antireflection (AR) coating based on terahertz metamaterial with a stand-up structure is designed, which utilizing stand-up double split ring resonators (SRRs) to suppress the reflection in the terahertz range. The minimum reflectivity of AR coating is 0.001 and the band width is 0.45 THz when the reflectivity is below 0.1. The operating mechanism of this metamaterial antireflection coating is analyzed,the effects of the distance between the two split rings and the thickness of the polymer substrate on the performances of the metamaterial AR coating are investigated, and the performance comparison with that of the single SRR AR coating is conducted. The numerical simulation and analysis results show that the designed metamaterial AR coating has an excellent broadband reflection inhibition characteristic and a large production-parameter-tolerance characteristic.