Wang Ning, Ma Yungui, Huang Ruifeng, Ong C K
Center for Superconducting and Magnetic Materials, Department of Physics, National University of Singapore, Singapore 117524, Singapore.
Opt Express. 2013 Mar 11;21(5):5941-8. doi: 10.1364/OE.21.005941.
In this paper, we report a fabrication of a three-dimensional (3D) carpet cloak that works for any polarization in free space. Two-dimensional (2D) conformal mapping is first employed and the 3D structure is generated by a rotation of the 2D cloak. The structure of the cloak is hole-in-dielectric. The triangular invisible region has a height of 36 mm (one third of the height of the whole device) and a width of 240 mm. The cloaking effect is examined in free space by measuring the scattering parameters. The results show our device has very good cloaking performance in a wide frequency range from 4 to 10 GHz.
在本文中，我们报告了一种适用于自由空间中任意极化的三维（3D）地毯式隐身衣的制作方法。首先采用二维（2D）共形映射，并通过二维隐身衣的旋转生成三维结构。隐身衣的结构为介质穿孔结构。三角形隐形区域的高度为36毫米（整个器件高度的三分之一），宽度为240毫米。通过测量散射参数在自由空间中检验隐身效果。结果表明，我们的器件在4至10吉赫兹的宽频率范围内具有非常好的隐身性能。
