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An Ultra-Thin Wideband Reflection Reduction Metasurface Based on Polarization Conversion

By Tiancheng Han, Kaihuai Wen, Zixuan Xie, and Xiuli Yue
Progress In Electromagnetics Research, Vol. 173, 1-8, 2022


Reflection reduction metasurface is capable of suppressing the radar cross section of a target, which is of great importance in stealth technology. However, it is still a challenge to realize broadband and low-profile simultaneously within a simple design. Here, we experimentally demonstrate an ultra-thin wideband reflection reduction metasurface, which is achieved by utilizing polarization conversion instead of resonant absorption. The simple cut-wire unit cell is adopted to perform efficient cross polarization conversion, which leads to a polarization conversion ratio above 90% ranging from 8.4 to 14.7 GHz. By arranging the 0/1 units in chessboard layout, the reflection reduction reaches 10\,dB from 8.1 GHz to 14.6 GHz. Measured results agree well with simulated ones, which validates the effectiveness of the proposed structure. The ratio of thickness to maximum wavelength reaches 0.56 while the relative bandwidth reaches 57.3%, demonstrating an excellent comprehensive performance. Since our structure consists of refractory ceramic materials, it is promising for radar cross section reduction in high temperature environment.


Tiancheng Han, Kaihuai Wen, Zixuan Xie, and Xiuli Yue, "An Ultra-Thin Wideband Reflection Reduction Metasurface Based on Polarization Conversion," Progress In Electromagnetics Research, Vol. 173, 1-8, 2022.


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