Design of A Novel Broadband Low RCS Array Based on Three Types of Reflective Cell Shared Aperture
-
摘要: 该文设计了一种基于3种反射型单元共享孔径的新型宽带低RCS超表面反射屏，与传统人工磁导体反射屏相比，引入一种相量干涉单元，利用新型相位对消关系完成了对传统人工磁导体(AMC)反射屏相位对消频带的拓展。通过将3种反射单元交错排布，合理设计阵列使其满足新型相位对消条件，并进一步优化单元结构参数，实现了阵列RCS缩减和缩减带宽的拓展。在不同极化波垂直入射条件下，新型阵列均有较好的低散射性能。仿真与实测结果表明：在5.2～13.9 GHz范围内后向RCS缩减量达到10 dB以上，相对带宽达到91%，为宽带低RCS反射屏设计提供了新的方法。Abstract: A novel wideband low RCS new super-surface array based on three reflective cell shared aperture is designed, which is composed of three kinds of Artificial Magnetic Conductor (AMC). Compared with the traditional AMC array, the new array uses one of AMC as phasor interference unit. A new phase cancellation relation is presented, the new phase cancellation relation is used to extend the traditional array phase cancellation band. Then, the parameters of the cell structure are further optimized to realize the reduction of RCS and the improvement of bandwidth. The physical sample is processed and tested. The results of simulation and field test show that: the backward reduction of RCS in the range of 5.2～13.9 GHz reaches more than 10 dB, and the relative bandwidth reaches 91%. It is shown that the new array can overcome the defect of the discontinuous operating band of the traditional array and has broadband low scattering characteristics.
-
Key words:
- New array /
- Phase cancellation /
- Broadband /
- Low RCS
-
PENDRY J B, SCHURIG D, and SMITH D R. Controlling electromagnetic fields[J]. Science, 2006, 312(5781): 1780–1782. doi: 10.1126/science.1125907 LING Baoqing, ZHAO Shanghong, WEI Wei, et al. Design of a tunable frequency selective surface absorber as a loaded receiving antenna array[J]. Chinese Physics B, 2014, 23(2): 024201. doi: 10.1088/1674-1056/23/2/024201 ESMAELI S H and SEDIGHY S H. Wideband radar cross-section reduction by AMC[J]. Electronics Letters, 2016, 52(1): 70–71. doi: 10.1049/el.2015.3515 ZHAO Yi, CAO Xiangyu, GAO Jun, et al. Broadband diffusion metasurface based on a single anisotropic element and optimized by the Simulated Annealing algorithm[J]. Scientific Reports, 2016, 6: 23896. doi: 10.1038/srep23896 LI Sijia, GAO Jun, CAO Xiangyu, et al. Multiband and broadband polarization -insensitive perfect absorber devices based on a tunable and thin double split-ring metamaterial[J]. Optics Express, 2015, 23(3): 3523–3533. doi: 10.1364/OE.23.003523 KANG Xiaole, SU Jianxun, ZHANG Hui, et al. Ultra-wideband RCS reduction of microstrip antenna array by optimised multi-element metasurface[J]. Electronics Letters, 2017, 53(8): 520–522. doi: 10.1049/el.2017.0260 HYUNG S J, DETOMA A S, BRENDER J R, et al. Insights into antiamyloidogenic properties of the green tea extract (−)-epigallocatechin-3-gallate toward metal-associated amyloid-β species[J]. Proceedings of the National Academy of Sciences of the United States of America, 2013, 110(10): 3743–3748. doi: 10.1073/pnas.1220326110 YEPES C, CAVALLO D, GANDINI E, et al. Angularly stable frequency selective surface combined with a wide-scan phased array[J]. IEEE Transactions on Antennas and Propagation, 2018, 66(2): 1046–1051. doi: 10.1109/TAP.2017.2778768 LIU Ying, HAO Yuwen, LI Kun, et al. Wideband and polarization-independent radar cross section reduction using holographic metasurface[J]. IEEE Antennas and Wireless Propagation Letters, 2016, 15: 1028–1031. doi: 10.1109/LAWP.2015.2490241 LIU Ying, LI Kun, JIA Yongtao, et al. Wideband RCS reduction of a slot array antenna using polarization conversion metasurfaces[J]. IEEE Transactions on Antennas and Propagation, 2016, 64(1): 326–331. doi: 10.1109/TAP.2015.2497352 SIMMS S and FUSCO V. Tunable thin radar absorber using artificial magnetic ground plane with variable backplane[J]. Electronics Letters, 2006, 42(21): 1197–1198. doi: 10.1049/el:20061989 COSTA F, MONORCHIO A, and MANARA G. Analysis and design of ultra thin electromagnetic absorbers comprising resistively loaded high impedance surfaces[J]. IEEE Transactions on Antennas and Propagation, 2010, 58(5): 1551–1558. doi: 10.1109/TAP.2010.2044329 PAQUAY M, IRIARTE J C, EDERRA I, et al. Thin AMC structure for radar cross-section reduction[J]. IEEE Transactions on Antennas and Propagation, 2007, 55(12): 3630–3638. doi: 10.1109/TAP.2007.910306 ESMAELI S H and SEDIGHY S H. SLL reduction of slot array antenna by artificial magnetic conductor side walls[J]. Electronics Letters, 2016, 52(18): 1513–1514. doi: 10.1049/el.2016.2430 ZHENG Yuejun, GAO Jun, XU Liming, et al. Ultrawideband and polarization-independent radar-cross-sectional reduction with composite artificial magnetic conductor surface[J]. IEEE Antennas and Wireless Propagation Letters, 2017, 16: 1651–1654. doi: 10.1109/LAWP.2017.2660878 MODI A Y, BALANIS C A, BIRTCHER C R, et al. Novel design of ultrabroadband radar cross section reduction surfaces using artificial magnetic conductors[J]. IEEE Transactions on Antennas and Propagation, 2017, 65(10): 54065417. LI Youquan, ZHANG Hui, FU Yunqi, et al. RCS reduction of ridged waveguide slot antenna array using EBG radar absorbing material[J]. IEEE Antennas and Wireless Propagation Letters, 2008, 7: 473–476. doi: 10.1109/LAWP.2008.2001548 XUE Jingjing, JIANG Wen, and GONG Shuxi. Wideband RCS reduction of slot-coupled patch antenna by AMC structure[J]. Electronics Letters, 2017, 53(22): 1454–1456. doi: 10.1049/el.2017.2587 LI Sijia, GAO Jun, CAO Xiangyu, et al. Polarization-insensitive and thin stereo -metamaterial with broadband angular absorption for the oblique incidence[J]. Applied Physics A, 2015, 119(1): 371–378. doi: 10.117/s00339-014-8978-y 杨欢欢, 杨帆, 许慎恒, 等. Ku波段编码式电控超薄周期单元设计与验证[J]. 物理学报, 2016, 65(5): 054102.YANG Huanhuan, YANG Fan, XU Shenheng, et al. Design and verification of an electronically controllable ultrathin coding periodic element in Ku band[J]. Acta Physica Sinica, 2016, 65(5): 054102. -
下载:
图(12)
计量
- 文章访问数: 2273
- HTML全文浏览量: 1159
- PDF下载量: 51
- 被引次数: 0
下载:
