Zoned gradient design and analysis of electromagnetic performance in curved functional composite structures

doi:10.19936/j.cnki.2096-8000.20260728.015

Abstract

Abstract: This paper analyzes the potential reasons for the limited radar cross section (RCS) reduction effectiveness of gradient-designed electromagnetic functional composite materials, originally based on flat-plate structures, when applied to curved structures. By introducing a gradient design method for curved functional composite structures zoned by electromagnetic wave incidence angles, this study achieves optimized enhancement of dual-polarization electromagnetic performance in low-frequency bands for curved functional composite structures. The paper emphasizes that uniform gradient designs can improve RCS reduction capability in flat structures, but in curved structural applications, due to position-dependent variations in the actual electromagnetic wave incidence angles across curved surfaces, even under vertical electromagnetic wave irradiation, uniform gradient designs fail to directly deliver their electromagnetic scattering suppression optimization effects, necessitating gradient designs that incorporate incidence angle considerations to enhance RCS reduction capabilities. A gradient electrical structure design method partitioned by incidence angles is proposed. Through optimized analysis of curved functional composite structures with incidence angle-zoned gradient designs, an 8.94 dB improvement in average horizontal polarization RCS reduction at 1~2 GHz compared to single-type electromagnetic core materials is achieved, along with over 16 dB average RCS reduction across 1~6 GHz. A curved functional composite material structure has been obtained, which exhibits efficient low-frequency reduction performance in low-frequency horizontal polarization and also possesses vertical polarization reduction capabilities.

Key words: curved structure, functional composite materials, electromagnetic performance, radar cross section (RCS), zoned gradient design

CLC Number:

TB332

YANG Shengshu, LI Songming, GUO Wen, LIU Yushun, LU Haijun. Zoned gradient design and analysis of electromagnetic performance in curved functional composite structures[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(7): 126-133.

References

[1] 孔令讲, 郭世盛, 陈家辉, 等. 多径利用雷达目标探测技术综述与展望[J]. 雷达学报, 2024, 13(1): 23-45.
Kong Lingjiang, Guo Shisheng, Chen Jiahui, et al. Overview and prospects of multipath exploitation radar target detection technology[J]. Journal of Radars, 2024, 13(1): 23-45.
[2] 帅威辰, 夏洪应, 李春雨, 等. 宽频吸波材料研究现状与前景[J]. 化工新型材料, 2024, 52(10): 27-31, 38.
Shuai Weichen, Xia Hongying, Li Chunyu, et al. Research status and prospect of broadband absorbing materials[J]. New Chemical Materials, 2024, 52(10): 27-31, 38.
[3] 韩敏阳, 韦国科, 周明, 等. 低频雷达吸波材料的研究进展[J]. 复合材料学报, 2022, 39(4): 1363-1377.
Han Minyang, Wei Guoke, Zhou Ming, et al. Research progress of low-frequency radar absorbents[J]. Acta Materiae Compositae Sinica, 2022, 39(4): 1363-1377.
[4] Lyu Lihua, Liu Wendi, Sun Baozhong. Electromagnetic wave-absorbing and bending properties of three-dimensional honeycomb woven composites[J]. Polymers, 2021, 13(9): 1485.
[5] Choi W H, Kim C G. Broadband microwave-absorbing honeycomb structure with novel design concept[J]. Composites Part B: Engineering, 2015, 83: 14-20.
[6] Li Songming, Huang Hao, Wu Sibao, et al. Study on microwave absorption performance enhancement of metamaterial/honeycomb sandwich composites in the low frequency band[J]. Polymers, 2022, 14(7): 1424.
[7] He Fan, Si Kaixuan, Li Rui, et al. Frequency selective surface composites with honeycomb absorbing structure for broadband applications[J]. IEEE Transactions on Antennas and Propagation, 2022, 70(9): 8643-8647.
[8] Zhao Yiming, Shan Yimeng, Ji Guoliang, et al. Enhanced microwave-absorbing property of honeycomb sandwich structure with a significant interface effect[J]. Materials, 2022, 15(16): 5741.
[9] 礼嵩明, 吴思保, 王甲富, 等. 含超材料的新型蜂窝夹层结构吸波复合材料[J]. 航空材料学报, 2019, 39(3): 94-99.
Li Songming, Wu Sibao, Wang Jiafu, et al. Novel honeycomb sandwich structure wave-absorbing composites with metamaterials[J]. Journal of Aeronautical Materials, 2019, 39(3): 94-99.
[10] Wang Baolei, Wu Qian, Fu Yonggang, et al. A review on carbon/magnetic metal composites for microwave absorption[J]. Journal of Materials Science & Technology, 2021, 86: 91-109.
[11] 韩忠华, 高正红, 宋文萍, 等. 翼型研究的历史、现状与未来发展[J]. 空气动力学学报, 2021, 39(6): 1-36.
Han Zhonghua, Gao Zhenghong, Song Wenping, et al. On airfoil research and development: history, current status, and future directions[J]. Acta Aerodynamica Sinica, 2021, 39(6): 1-36.
[12] Wang Peng, Zhang Yichen, Chen Hailong, et al. Broadband radar absorption and mechanical behaviors of bendable over-expanded honeycomb panels[J]. Composites Science and Technology, 2018, 162: 33-48.
[13] 李泽, 王建江, 高海涛. P波段吸波材料研究进展[J]. 化工新型材料, 2020, 48(3): 1-5.
Li Ze, Wang Jianjiang, Gao Haitao. Research progress of low frequency P band wave absorbing material[J]. New Chemical Materials, 2020, 48(3): 1-5.
[14] Zhao Yuchen, Liu Jiangfan, Song Zhongguo, et al. Novel closed-form expressions for effective electromagnetic parameters of honeycomb radar-absorbing structure[J]. IEEE Transactions on Antennas and Propagation, 2016, 64(5): 1768-1778.
[15] 鹿海军, 礼嵩明, 黄浩, 等. 宽频蜂窝夹层结构吸波复合材料的低频隐身介质超材料研究[J]. 复合材料学报, 2024, 41(1): 188-195.
Lu Haijun, Li Songming, Huang Hao, et al. Study on the low frequency radar-stealth dielectric metamaterial of broadband wave-absorbing honeycomb sandwich composites[J]. Acta Materiae Compositae Sinica, 2024, 41(1): 188-195.[16] Li Wangchang, Xu Liaoyuan, Zhang Xu, et al. Investigating the effect of honeycomb structure composite on microwave absorptionproperties[J]. Composites Communications, 2020, 19: 182-188.
[17] 贺榆波, 杨青真, 施永强, 等. 双层梯度蜂窝吸波结构优化设计[J]. 推进技术, 2022, 43(10): 427-435.
He Yubo, Yang Qingzhen, Shi Yongqiang, et al. Optimization design of double-layer grading honeycomb absorbing structure[J]. Journal of Propulsion Technology, 2022, 43(10): 427-435.
[18] 李旭光, 吴雪猛, 石珺玺, 等. 蜂窝夹层结构复合材料的吸波隐身技术研究进展[J]. 复合材料学报, 2024, 41(6): 2775-2788.
Li Xuguang, Wu Xuemeng, Shi Junxi, et al. Research progress on microwave absorption stealth technology of honeycomb sandwich structure composites[J]. Acta Materiae Compositae Sinica, 2024, 41(6): 2775-2788.
[19] 牛磊, 郑磊, 潘文辉, 等. 多层复合蜂窝芯结构优化设计及其宽带吸波性能研究[J]. 微波学报, 2024, 40(3): 34-39.
Niu Lei, Zheng Lei, Pan Wenhui, et al. Optimization design of multi-layer composite honeycomb core structure and research on its broadband absorbing performance[J]. Journal of Microwaves, 2024, 40(3): 34-39.
[20] Yadav R, Panwar R. Effective medium approximation fused optimization strategy derived new kind of honeycomb microwave absorbing structure[J]. IEEE Transactions on Magnetics, 2022, 58(3): 2501311.
[21] 礼嵩明, 刘雨舜, 郭闻, 等. 非均质孔格结构材料电磁性能分析[J]. 复合材料学报, 2025, 42(8): 4368-4375.
Li Songming, Liu Yushun, Guo Wen, et al. Analysis of electromagnetic properties of heterogeneous lattice structure materials[J]. Acta Materiae Compositae Sinica, 2025, 42(8): 4368-4375.
[22] 赵雨辰, 万国宾, 刘金博, 等. 等效模型误差对蜂窝吸波结构设计结果的影响[J]. 微波学报, 2014, 30(3): 23-27.
Zhao Yuchen, Wan Guobin, Liu Jinbo, et al. Effects of error of equivalent models on the optimum design results of honeycomb radar absorber[J]. Journal of Microwaves, 2014, 30(3): 23-27.
[23] 李思桐, 夏露, 周琳, 等. 考虑涂敷的翼型气动高频电磁隐身一体化设计[J]. 航空学报, 2024, 45(17): 244-258.
Li Sitong, Xia Lu, Zhou Lin, et al. Integrated aerodynamic and high frequency electromagnetic stealth design of airfoil considering coating[J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(17): 244-258.
[24] 丁世敬, 葛德彪, 黄刘宏. 电磁吸波材料中的阻抗匹配条件[J]. 电波科学学报, 2009, 24(6): 1104-1108.
Ding Shijing, Ge Debiao, Huang Liuhong. Impedance matching condition of electromagnetic absorbing material[J]. Chinese Journal of Radio Science, 2009, 24(6): 1104-1108.