二维圆柱超材料隐身罩的设计和测试

The Design and Measurement of Two-dimensional Cylinder Metamaterial Cloak

基于坐标变换实现隐身的设想,以方形开口谐振环(Split-Ring Resonators,SRRs)为微元主体,设计构造了二维圆柱形隐身超材料罩。利用CSTMicrowave Studio软件在8.75 GHz下对不同层超材料的结构单元的尺寸进行了优化设计,实现并加工制作了二维圆柱超材料隐身罩样品,通过自行设计的平面波导系统测试了其隐身效果。测试结果表明:利用所设计的超材料制作的隐身罩具有较好的隐身效果。该项研究具有一定的应用价值和实际可行性。

Based on the coordinate transformation theory, this paper utilizes the square Split - Ring Resonators as the unit cell main body and designs a two -dimensional invisible cloak. The CST Microwave Studio is used to opti- mize the different layers＇structure of the invisible cloak with the frequency of 8.5 GHz. The designed two - dimensional invisible cloak is fabricated and measured by the plane wave - guide system. The measured result verifies that the cloak made by the designed metamaterial has a better invisible capability. This research gives a realizable way which makes the things inside the cloak unable to be detected.