Double-layer Chessboard AMC Surface for RCS Reduction in an Ultra-wide Band
Keywords:
Artificial Magnetic Conductor (AMC), Radar Cross Section (RCS) reduction, ultra-widebandAbstract
A novel chessboard surface is proposed for ultra-wideband radar cross section (RCS) reduction. The designed artificial magnetic conductor (AMC) surface is arranged by two different double-layer AMC unit cells, bringing in destructive reflection phase difference (180°±37°) in an ultra-wide band ranging from 5.8 to 16.1 GHz (94.06%). Each double-layer unit cell consists of a substrate layer loaded with metal patches and a PEC layer, in between of which is a 2- mm-thick air gap, which results in smooth phase curves of the two AMC units. One of the metal patches is composed of an octagonal ring and a Union Jack cross, and the other one is a Jerusalem cross. With chessboard arrangement by the two units, the RCS of the proposed surface can be reduced by more than 10 dB over a 90.22% frequency range (6.23-16.47 GHz) for both x and y polarizations. And the 20-dB RCS reduction frequency band ranges from 12.3 GHz to 15.9 GHz (25.5%). Then, the proposed AMC surface is fabricated and measured, and the measured 10-dB RCS reduction frequency band ranges from 6.66 to 16.42 GHz (84.58%) for x polarization and from 6.65 to 16.5 GHz (85.1%) for y polarization, which verifies that the presented AMC configuration may achieve potential applications on low-RCS platforms in an ultra-wide band.
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X. C. Wei, Y. F. Shu, J. B. Zhang, and D. Wang, “Applications of high impedance surfaces for surface wave elimination,” 2016 URSI Asia-Pacific Radio Science Conference (URIS AP-RASC), Seoul, South Korea, pp. 1458-1461, 2016.
L. Mouffok, L. Damaj, X. Begaud, A. C. Lepage, and H. Diez, “Mutual coupling reduction between dual polarized microstrip patch antennas using compact spiral artificial magnetic conductor,” Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP), Rome, Italy, pp. 909-912, 2011.
B. Zhang, P. Yao, and J. Duan, “Gain-enhanced antenna backed with the fractal artificial magnetic conductor,” IET Microwaves Antennas Propag., vol. 12, pp. 1457-1460, 2018.
M. Paquay, J. C. Iriarte, I. Ederra, R. Gonzalo, and P. Maagt, “Thin AMC structure for radar cross-section reduction,” IEEE Trans. Antennas Propag., vol. 55, pp. 3630-3638, 2007.
K. L. Ford and B. Chambers, “Tunable single layer phase modulated radar absorber,” 2001 Eleventh International Conference on Antennas and Propagation, Manchester, UK, pp. 588-592, 2001.
Y. Ishii, T. Masaki, N. Michishita, H. Morishita, and H. Hada, “RCS reduction characteristics of thin wave absorbers composed of flat and curved metasurfaces,” 2016 International Symposium on Antennas and Propagation (ISAP), Okinawa, Japan, pp. 192-193, 2016.
Y. Zhang, R. Mittra, B. Z. Wang, and N. T. Huang, “AMCs for ultra-thin and broadband RAM design,” Electron. Lett., vol. 45, pp. 484-485, 2009.
Y. Fu, Y. Li, and N. Yuan, “Wideband composite ANC surfaces for RCS reduction,” Microwave Opt. Technol. Lett., vol. 53, pp. 712-715, 2011.
Y. J. Zheng, J. Gao, X. Y. Cao, Z. Yuan, and H. Yang, “Wideband RCS reduction of a microstrip antenna using artificial magnetic conductor structures,” IEEE Antennas Wireless Propag. Lett., vol. 14, pp. 1582-1585, 2015.
J. C. I. Galarregui, A. T. Pereda, J. L. M. Falcón, I. Ederra, R. Gonzalo, and P. Maagt, “Broadband radar cross-section reduction using AMC technology,” IEEE Trans. Antennas Propag., vol. 61, pp. 6136-6143, 2013.
Y. Pei, B. Zhang, and J. Duan, “A broadband artificial magnetic conductor reflecting screen and application in microstrip antenna for radar crosssection reduction,” IEEE Antennas Wireless Propag. Lett., vol. 17, pp. 405-409, 2018.
M. Mighani and G. Dadashzadeh, “Broadband RCS reduction using a novel double layer chessboard AMC surface,” Electron. Lett., vol. 52, pp. 1253-1255, 2016.
R. Zaker and A. Sadeghzadeh, “Wideband radar cross section reduction using a novel design of artificial magnetic conductor structure with a triple-layer chessboard configuration,” International Journal of RF and Microwave Computer‐Aided Engineering, e21545, 2018.
J. Xue, W. Jiang, and S. Gong, “Chessboard AMC surface based on quasi-fractal structure for wideband RCS reduction,” IEEE Antennas and Wireless Propagation Letters, vol. 17.2, pp. 201- 204, 2018.
D. Sang, Q. Chen, L. Ding, M. Guo, and Y. Fu, “Design of checkerboard AMC structure for wideband RCS reduction,” IEEE Transactions on Antennas and Propagation, pp. 2604-2612, 2019.
W. Chen, C. A. Balanis, and C. R. Birtcher, “Checkerboard EBG surfaces for wideband radar cross section reduction,” IEEE Trans. Antennas Propag., vol. 63, pp. 2636-2645, 2015.
A. Y. Modi, C. A. Balanis, C. R. Birtcher, and H. N. Shaman, “Novel design of ultrabroadband radar cross section reduction surfaces using artificial magnetic conductors,” IEEE Trans. Antennas Propag., vol. 65, pp. 5406-5417, 2017.
W. Q. Chen, C. A. Balanis, C. R. Birtcher, and A. Y. Modi, “Cylindrically curved checkerboard surfaces for radar cross section reduction,” IEEE Antennas Wireless Propag. Lett., vol. 17, pp. 343- 346, 2018.
Y. Zhao, X. Y. Cao, J. Gao, X. Yao, and X. Liu, “A low-RCS and high-gain slot antenna using broadband metasurface,” IEEE Antennas Wireless Propag., vol. 15, pp. 290-293, 2016.
D. Singh, A. Kumar, S. Meena, and V. Agarwala, “Analysis of frequency selective surfaces for radar absorbing materials,” Progress in Electromagnetics Research B, vol. 38, pp. 297-314, Feb. 2012.