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It is important and urgent to develop microwave low frequency band-pass and high frequency band-stop composite structures according to the needs of marine environment stealth weapons and equipment constructions. In this paper, a hollow hexagonal periodic structure is originally designed and the microwave band-pass and band-stop characteristics are investigated through the CST software simulation. As an optimization result, the numerical periodic structure parameters of hexagon ring are as follows: hexagon ring side length is 2.7 mm, line width 0.5 mm and gap width 0.15 mm, which shows a transmission of 83% at 0-2 GHz, and meanwhile a shielding efficiency of more than 10 dB at 8-18 GHz, thereby basically justifying our design target. On this basis, a new type of double-layers' composite frequency selective surface (FSS) structure which is composed of facial layer, hollow hexagon ring array 1, middle spacer layer, hollow hexagon ring array 2 and another facial layer stacked layer by layer, is creatively designed, which displays excellent microwave low frequency band-pass and high frequency band-stop performances compared with a single layer hollow hexagonal periodic structure, and by simulation and optimization, structural parameters of the upper FSS structure are as follows: hexagon ring side length is 3.0 mm, line width 0.5 mm, gap width 0.4 mm, and the lower FSS structure parameters are as follows: hexagon ring side length is 3.2 mm, line width 0.5 mm, gap width 1.0 mm; simulation results show itself that dual different layers' FSS design presents itself excellent low frequency band-pass and high frequency band-stop transformation characteristics, and the fast switch capacity is the basic foundation for both excellent low frequency band-pass and outstanding high frequency band-stop characteristics. The effects of wave incidence angle (TE) on electrical performance of dual-layers FSS are investigated and the results indicate that the designed dual-layers' FSS possesses a wide angle insensitivity in a range of 0-45°, which is especially beneficial to engineering applications. Finally the composite structures with dual-layers' FSSs are manufactured and verified, and high transmission up to 95.6% at 0-2 GHz frequency band and more than 10 dB shielding efficiency at 7.05-18 GHz are obtained, which strongly testifies our design idea and has important significance for developing the high performance band-pass and band-stop composite structure and new electromagnetic functional composite materials.
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Keywords:
- low frequency pass-band /
- high frequency stop-band /
- frequency selective surfaces /
- stealth
[1] Munk B A 2000 Frequency Selective Surface Theory and Design (New York: Wiley Press)
[2] Zhang T, Yang G, Li W 2010 Antennas Propagation and EM Theory (ISAPE), 2010 9th International Symposium on. IEEE, Guangzhou, 2010 p932
[3] Zhang J, Gao J S, Xu N X, Yu M 2015 Acta Phys. Sin. 64 067302(in Chinese) [张建, 高劲松, 徐念喜, 于淼 2015 64 067302]
[4] Joumayly M A, Behdad N 2010 Antennas and Propagation, IEEE Transactions on 58 4033
[5] Wang X Z, Gao J S, Xu N X, Liu H 2014 Chin. Phys. B 23 047303
[6] Salehi M, Behdad N 2008 Microwave and Wireless Components Letters IEEE 18 785
[7] Li M, Behdad N 2013 Antennas and Propagation, IEEE Transactions On 61 677
[8] Shi H Y, Li J X, Zhang A X, Wang J F, Xu Z 2014 Chin. Phys. B 23 118101
[9] Wang Y S, Gao J S, Xu N X, Tang Y, Chen X 2014 Acta Phys. Sin. 63 078402(in Chinese) [王岩松, 高劲松, 徐念喜, 汤洋, 陈新 2014 63 078402]
[10] Yu M Xu N X, Gao J S 2015 Chin. Phys. B 24 030701
[11] Li C, Jiang D, Zeng J, Xing S, Ju S 2014 Composites Sci. Technol. 90 32
[12] Choi I, Lee D, Lee D G 2014 Composite Structures 117 98
[13] Wang X Z 2014 Ph.D.Dissertation (Changchun: Changchun Institute of Optics, Fine Mechanics and Physics Chinese Academy of Sciences) (in Chinese) [王秀芝 2014 博士学位论文(长春: 中国科学院长春光学精密机械与物理研究所)]
[14] Wu Z, Wu Z B 2005 Acta Electron. Sin. 33 517(in Chinese) [武哲, 武振波 2005 电子学报 33 517]
[15] Lan F, Gao X, Qi L M 2014 Acta Phys. Sin. 63 104209(in Chinese) [兰峰, 高喜, 亓丽梅 2014 63 104209]
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[1] Munk B A 2000 Frequency Selective Surface Theory and Design (New York: Wiley Press)
[2] Zhang T, Yang G, Li W 2010 Antennas Propagation and EM Theory (ISAPE), 2010 9th International Symposium on. IEEE, Guangzhou, 2010 p932
[3] Zhang J, Gao J S, Xu N X, Yu M 2015 Acta Phys. Sin. 64 067302(in Chinese) [张建, 高劲松, 徐念喜, 于淼 2015 64 067302]
[4] Joumayly M A, Behdad N 2010 Antennas and Propagation, IEEE Transactions on 58 4033
[5] Wang X Z, Gao J S, Xu N X, Liu H 2014 Chin. Phys. B 23 047303
[6] Salehi M, Behdad N 2008 Microwave and Wireless Components Letters IEEE 18 785
[7] Li M, Behdad N 2013 Antennas and Propagation, IEEE Transactions On 61 677
[8] Shi H Y, Li J X, Zhang A X, Wang J F, Xu Z 2014 Chin. Phys. B 23 118101
[9] Wang Y S, Gao J S, Xu N X, Tang Y, Chen X 2014 Acta Phys. Sin. 63 078402(in Chinese) [王岩松, 高劲松, 徐念喜, 汤洋, 陈新 2014 63 078402]
[10] Yu M Xu N X, Gao J S 2015 Chin. Phys. B 24 030701
[11] Li C, Jiang D, Zeng J, Xing S, Ju S 2014 Composites Sci. Technol. 90 32
[12] Choi I, Lee D, Lee D G 2014 Composite Structures 117 98
[13] Wang X Z 2014 Ph.D.Dissertation (Changchun: Changchun Institute of Optics, Fine Mechanics and Physics Chinese Academy of Sciences) (in Chinese) [王秀芝 2014 博士学位论文(长春: 中国科学院长春光学精密机械与物理研究所)]
[14] Wu Z, Wu Z B 2005 Acta Electron. Sin. 33 517(in Chinese) [武哲, 武振波 2005 电子学报 33 517]
[15] Lan F, Gao X, Qi L M 2014 Acta Phys. Sin. 63 104209(in Chinese) [兰峰, 高喜, 亓丽梅 2014 63 104209]
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