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设计了一种加载集总电阻的单极化低频透射吸波型频率选择表面(absorptive frequency selective surface, AFSS). 该结构由二维有耗频率选择表面(FSS)阻抗屏和三维带阻FSS级联组成. 利用集总电阻加载的容性FSS和高选择性的三维宽阻带FSS实现了超宽带通响应以及低剖面、高选择性特性. 仿真结果显示设计的吸波型频率选择表面通带为1—3.5 GHz, 吸波频段为6.6—11.6 GHz, 通带与吸波频段的过渡带比为1.9. 最后制作实物进行了实验验证, 测试结果与仿真基本一致, 充分验证了设计的有效性和正确性.In this paper, a single polarized absorptive frequency selective surface (AFSS) with ultra-wide transmission band and broad absorption band has been proposed numerically and experimentally. Based on the principle of circuit analog absorber (CAA), the proposed wideband AFSS is realized via replacing the ground plane with a band-stop frequency selective sturcture. The proposed AFSS is finally a hybrid structure composed of a wideband lossy frequency selective surface (FSS) in the top and a 3D band-stop frequency selective structure in the bottom. The wideband lossy FSS with thinner profile in the top is realized by utilizing a low pass capasitive elements to compensate the equivalent load inductance arising from the air space that is less than quarter wavelength installing between FSS and ground plane, and the low pass capactive lossy FSS is synthesized using “Gong”-shaped patterns with lumped resistors. Meanwhile, the unit cell of 3D frequency selective structure consists of two electrical coupling C-shaped patterns is investigated to achieve a wide stop band with high selectivity, which can be equivalent to the ground plane in the absorption band. By cascading the wideband lossy FSS and the 3D band-stop frequency selective structure, a thinner hybrid AFSS is presented with ultra-wide transmission band and broad absorption band. The results obtained from simulation shown that an absorption band with absorptivity above 90% is obtained from 6.6 to 11.6 GHz, and the 1 dB transmisson band is from 1 to 3.5 GHz with minimum insertion loss of 0.21 dB. Moreover, the performance can be guaranteed for TE-polarized oblique incidence up to 30°. Finally, a prototype is fabricated to validate its performance, the measured results shown that the 1 dB transmission band ranges from 1 to 3.5 GHz, and the absorption band is operating from 6.3 to 11 GHz at normal TE-polarized incidence. A good agreement between the experiment and simulation results is achieved, which verifies the effectiveness of the design.
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Keywords:
- absorptive frequency selective surface /
- circuit analog absorber /
- ultra-wide pass band /
- split ring resonator (SRR)
[1] Munk B A 2000 Frequency Selective Surfaces: Theory and Design (NewYork: Wiley) pp12–20.
[2] Munk B A 2009 Metamaterials: Critique and Alternatives (Hoboken: Wiley) pp50–56.
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[12] Luo G Q, Hong W, Tang H J, Chen J X, Wu K 2006 IEEE Microw. Wirel. Compon. Lett. 16 648Google Scholar
[13] Rashid A K, Shen Z X 2010 IEEE Antennas and Propagation Society International Symposium Toronto, Canada, July 11–17, 2010 p978
[14] Yu W L, Luo G Q, Yu Y F, Liao Z, Jin H Y, Shen Z X 2019 IEEE Antennas Wirel. Propag. Lett. 18 1701Google Scholar
[15] Yu W L, Luo G Q, Yu Y F, Cao W H, Pan Y J, Shen Z X 2019 IEEE Trans. Antennas Propag. 67 1318Google Scholar
[16] Yu Y F, Luo G Q, Liu Q, Yu W L, Jin H Y, Liao Z, Shen Z X 2019 IEEE Access. 7 2520Google Scholar
[17] 波扎 著 (张肇仪 译) 2010 微波工程 (北京: 电子工业出版社) 第157—160页
Pozer D M (translated by Zhang Z Y) 2010 Microwave Engineering (Beijing: Electronic Industry Press) pp157–160 (in Chinese)
[18] Costa F, Monorchio A, Manara G 2016 IEEE Electromagnetic Compatibility Magazine. 5 67Google Scholar
[19] 周良 2011 博士学位论文 (南京: 南京航空航天大学)
Zhou L 2011 Ph. D. Dissertation (Nanjing: Nanjing University of Aeronautics and Astronautics) (in Chinese)
[20] Ghodgaonkar D K, Varadan V V, Varadan V K IEEE 1989 Trans. Instrum. Meas. 38 789Google Scholar
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表 1 所设计AFSS与前人所设计的AFSS比较
Table 1. Comparisons between the proposed AFSS and the previous AFSSs.
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[1] Munk B A 2000 Frequency Selective Surfaces: Theory and Design (NewYork: Wiley) pp12–20.
[2] Munk B A 2009 Metamaterials: Critique and Alternatives (Hoboken: Wiley) pp50–56.
[3] Costa F, Monorchio A 2012 IEEE Trans. Antennas Propag. 60 2740Google Scholar
[4] 周航, 屈绍波, 彭卫东, 王甲富, 马华, 张东伟, 张介秋, 柏鹏, 徐卓 2012 61 104201Google Scholar
Zhou H, Qu S B, Peng W D, Wang J F, Ma H, Zhang D W, Zhang J Q, Bai P, Xu Z 2012 Acta Phys. Sin. 61 104201Google Scholar
[5] Zhong S, Wu L, Liu T, Huang J, Jiang W, Ma Y 2018 Opt. Express. 26 16466Google Scholar
[6] Chen Q, Sang D, Guo M, Fu Y Q 2019 IEEE Trans. Antennas Propag. 67 1045Google Scholar
[7] Wang Z F, Fu J H, Zeng Q S, Song M X, Denidni T A 2019 IEEE Trans. Antennas Propag. 18 1443Google Scholar
[8] Guo Q X, Li Z R, Su J X, Yang L Y, Song J M 2019 IEEE Trans. Antennas Propag. 18 961Google Scholar
[9] Chen Q, Liu L G, Chen L, Bai J J, Fu Y Q 2016 Electron. Lett. 52 418Google Scholar
[10] Zhang Y X, Li B, Zhu L, Tang Y M, Chang Y M, Bo Y M 2018 IEEE Antennas Wirel. Propag. Lett. 17 633Google Scholar
[11] Shen Z X, Wang J, Li B 2016 IEEE Trans. Antennas Propag. 64 3087Google Scholar
[12] Luo G Q, Hong W, Tang H J, Chen J X, Wu K 2006 IEEE Microw. Wirel. Compon. Lett. 16 648Google Scholar
[13] Rashid A K, Shen Z X 2010 IEEE Antennas and Propagation Society International Symposium Toronto, Canada, July 11–17, 2010 p978
[14] Yu W L, Luo G Q, Yu Y F, Liao Z, Jin H Y, Shen Z X 2019 IEEE Antennas Wirel. Propag. Lett. 18 1701Google Scholar
[15] Yu W L, Luo G Q, Yu Y F, Cao W H, Pan Y J, Shen Z X 2019 IEEE Trans. Antennas Propag. 67 1318Google Scholar
[16] Yu Y F, Luo G Q, Liu Q, Yu W L, Jin H Y, Liao Z, Shen Z X 2019 IEEE Access. 7 2520Google Scholar
[17] 波扎 著 (张肇仪 译) 2010 微波工程 (北京: 电子工业出版社) 第157—160页
Pozer D M (translated by Zhang Z Y) 2010 Microwave Engineering (Beijing: Electronic Industry Press) pp157–160 (in Chinese)
[18] Costa F, Monorchio A, Manara G 2016 IEEE Electromagnetic Compatibility Magazine. 5 67Google Scholar
[19] 周良 2011 博士学位论文 (南京: 南京航空航天大学)
Zhou L 2011 Ph. D. Dissertation (Nanjing: Nanjing University of Aeronautics and Astronautics) (in Chinese)
[20] Ghodgaonkar D K, Varadan V V, Varadan V K IEEE 1989 Trans. Instrum. Meas. 38 789Google Scholar
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