Design and Implementation of a Novel Radar Cross Section Reduction Metasurface Covering 12.5-17.4 GHz and 20.5-36.2 GHz

IF 0.9 4区工程技术 Q4 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

International Journal of RF and Microwave Computer-Aided Engineering Pub Date : 2023-09-01 DOI:10.1155/2023/4859324

Mei-Lin Yu, Xi Hou, Yong-Hong Zhou

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Abstract

Based on the theory of polarization conversion, this paper designs and implements two electromagnetic units with a 180-degree reflection phase difference in the range of 10-40 GHz. By coding and optimizing the spatial arrangement of the two basic units to obtain a metasurface, which makes the incident electromagnetic waves reflect diffusely, the energy in a single beam direction is reduced to realize the reduction of the radar cross section (RCS). The full wave simulated and experimental results of the reduction of the RCS of the metasurface have been presented. The RCS of the proposed metasurface can be reduced by more than 10 dB in the two broadband bands of 12.5-17.4 GHz and 20.5-36.2 GHz, and the maximum reduction can reach 26 dB, compared with a metallic surface of the same size. In addition, the optimized metasurface can also maintain a good reduction effect under oblique incident wave directions of 30, 45, 60, and 70 degrees. A very good agreement between simulation and measurement results is observed.

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一种覆盖12.5-17.4 GHz和20.5-36.2 GHz的新型雷达截面减小超表面设计与实现

基于偏振转换理论，设计并实现了两个反射相位差为180度，工作范围为10-40 GHz的电磁单元。通过对两个基本单元的编码和空间排列进行优化，得到一个超表面，使入射电磁波漫反射，从而减小单波束方向上的能量，实现雷达截面的减小。给出了减少超表面RCS的全波模拟和实验结果。与相同尺寸的金属表面相比，该超表面在12.5-17.4 GHz和20.5-36.2 GHz两个宽带频段的RCS可降低10 dB以上，最大降幅可达26 dB。此外，优化后的超表面在30、45、60、70度斜入射波方向下也能保持良好的还原效果。仿真结果与实测结果吻合较好。

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来源期刊

International Journal of RF and Microwave Computer-Aided Engineering 工程技术-工程：电子与电气

CiteScore

4.00

自引率

23.50%

发文量

489

审稿时长

3 months

期刊介绍： International Journal of RF and Microwave Computer-Aided Engineering provides a common forum for the dissemination of research and development results in the areas of computer-aided design and engineering of RF, microwave, and millimeter-wave components, circuits, subsystems, and antennas. The journal is intended to be a single source of valuable information for all engineers and technicians, RF/microwave/mm-wave CAD tool vendors, researchers in industry, government and academia, professors and students, and systems engineers involved in RF/microwave/mm-wave technology. Multidisciplinary in scope, the journal publishes peer-reviewed articles and short papers on topics that include, but are not limited to. . . -Computer-Aided Modeling -Computer-Aided Analysis -Computer-Aided Optimization -Software and Manufacturing Techniques -Computer-Aided Measurements -Measurements Interfaced with CAD Systems In addition, the scope of the journal includes features such as software reviews, RF/microwave/mm-wave CAD related news, including brief reviews of CAD papers published elsewhere and a "Letters to the Editor" section.