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Design of ACF Microwave Absorbing Composites with Triangle Patches and Circular Aperture Elements

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Abstract:

The combination element frequency selective surface (FSS) with regular triangle patches and circular aperture elements in activated carbon fiber (ACF) felts were designed. The effects of the structure parameters and periodic arrangement of regular triangle patches on ACF felt composites were investigated. As the regular triangle patches were embedded into circular apertures, the combination element ACF felt screen (ACFFS) composites presented fluctuant absorbing characteristics and showed double-band frequency response characteristic including band pass and band stop. When the regular triangle edge length (L) increased, the effective absorption frequency (the reflection loss below-10 dB) shifted to low frequency, and the effective bandwidth increased without reducing the maximum absorption value. When the regular triangle patches (L = 30 mm) were in staggered rows, the effective absorption frequency drifted by 3.1 GHz, and the effective bandwidth was enhanced from 4.3 GHz to 11.0 GHz. Although the regular triangle patches are not central symmetry, it is proved that the absorption properties can be improved obviously by both horizontal polarization and vertical polarization.

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Periodical:

Materials Science Forum (Volume 789)

Pages:

163-168

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.789.163

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Online since:

April 2014

Authors:

Yong Ju Zang, Ao Zhuang, Xiang Hui Ou, Qi Xin Geng, Qi Ping Chen, Qi Lin Wu*

Keywords:

Absorption Properties, Activated Carbon Fibers, Combination Element, Frequency Selective Surface, Polarization

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

References

[1] I. Choi, J.G. Kim, I.S. Seo, D.G. Lee, Radar absorbing sandwich construction composed of CNT, PMI foam and carbon/epoxy composite, Compo. Struct. 94 (2012) 3002-3008.

DOI: 10.1016/j.compstruct.2012.04.009

Google Scholar

[2] I. Huynen, N. Quiévy, C. Bailly, P. Bollen, C. Detrembleur, S. Eggermont, I. Molenberg, J.M. Thomassin, L. Urbanczyk, T. Pardoen, Multifunctional hybrids for electromagnetic absorption, Acta. Mater. 59 (2011) 3255-3266.

DOI: 10.1016/j.actamat.2011.01.065

Google Scholar

[3] G. Li, T. Xie, S. Yang, J. Jin, J. Jiang, Microwave Absorption Enhancement of Porous Carbon Fibers Compared with Carbon Nanofibers, J. Phys. Chem. C. 116 (2012) 9196-9201.

DOI: 10.1021/jp300050u

Google Scholar

[4] V. K. Singh, A. Shukla, M. K. Patra, L. Saini, R.K. Jani, S.R. Vadera, N. Kumar, Microwave absorbing properties of a thermally reduced graphene oxide/nitrile butadiene rubber composite, Carbon. 50 (2012) 2202-2208.

DOI: 10.1016/j.carbon.2012.01.033

Google Scholar

[5] M. S. Cao, W.L. Song, Z.L. Hou, B. Wen, J. Yuan, The effects of temperature and frequency on the dielectric properties, electromagnetic interference shielding and microwave-absorption of short carbon fiber/silica composites, Carbon. 48 (2010) 788-796.

DOI: 10.1016/j.carbon.2009.10.028

Google Scholar

[6] P. C. Kim, D. G. Lee, W.G. Lim, I.S. Seo, Polarization characteristics of a composite stealth radome with a frequency selective surface composed of dipole elements, Compo. Struct. 90 (2009) 242-246.

DOI: 10.1016/j.compstruct.2009.03.002

Google Scholar

[7] Y.X. Kong, T.T. Qiu, J. Qiu, Fabrication of novel micro–nano carbonous composites based on self-made hollow activated carbon fibers, Appl. Surf. Sci. 265 (2013) 352-357.

DOI: 10.1016/j.apsusc.2012.11.011

Google Scholar

[8] A. Abbaspour-Tamijani, K. Sarabandi and G.M. Rebeiz: 'Antenna-filter-antenna arrays as a class of bandpass frequency-selective surfaces', IEEE T. Microw. Theory, 2004, 52, 1781 - 1789.

DOI: 10.1109/tmtt.2004.831572

Google Scholar

[9] X. Wei, C. Hai-Feng, C. Zeng-Yong, Z. Yong-Jiang, L. Hai-Tao, C. Zhao-Hui, Effect of FSS on microwave absorbing properties of hollow-porous carbon fiber composites, Mater. Design, 30 (2009) 1201-1204.

DOI: 10.1016/j.matdes.2008.06.018

Google Scholar

[10] P.C. Kim, W.S. Chin, D.G. Lee, I.S. Seo, EM characteristics of the RAS composed of E-glass/epoxy composite and single dipole FSS element, Compo. Struct. 75 (2006) 601-609.

DOI: 10.1016/j.compstruct.2006.04.085

Google Scholar

[11] W.J. Lee, J.W. Lee, C.G. Kim, Characteristics of an electromagnetic wave absorbing composite structure with a conducting polymer electromagnetic bandgap (EBG) in the X-band, Compo. Sci. Technol. 68 (2008) 2485-2489.

DOI: 10.1016/j.compscitech.2008.05.006

Google Scholar

[12] S.E. Lee, K.Y. Park, K.S. Oh, C.-G. Kim, The use of carbon/dielectric fiber woven fabrics as filters for electromagnetic radiation, Carbon. 47 (2009) 1896-1904.

DOI: 10.1016/j.carbon.2009.02.013

Google Scholar

[13] H.T. Liu, H.F. Cheng, Z.Y. Chu, D.Y. Zhang, Absorbing properties of frequency selective surface absorbers with cross-shaped resistive patches, Mater. Design. 28 (2007) 2166-2171.

DOI: 10.1016/j.matdes.2006.06.011

Google Scholar

[14] D.H. Ding, W.C. Zhou, F. Luo, D.M. Zhu, Influence of pyrolytic carbon coatings on complex permittivity and microwave absorbing properties of Al2O3 fiber woven fabrics, T. Nonferr. Metal. Soc. 22 (2012) 354-359.

DOI: 10.1016/s1003-6326(11)61183-7

Google Scholar

[15] H.L. Fan, W. Yang, Z.M. Chao, Microwave absorbing composite lattice grids, Compos. Sci. Technol. 67 (2007) 3472-3479.

DOI: 10.1016/j.compscitech.2007.03.002

Google Scholar

[16] Y. Sha, K.A. Jose, C.P. Neo, V.K. Varadan, Experimental investigations of microwave absorber with FSS embedded in carbon fiber composite, Microw. Opt. Techn. Let., 32 (2002) 245-249.

DOI: 10.1002/mop.10144

Google Scholar

[17] N. Zhao, T. Zou, C. Shi, J. Li, W. Guo, Microwave absorbing properties of activated carbon-fiber felt screens (vertical-arranged carbon fibers)/epoxy resin composites, Mater. Sci. Eng. B-Adv. 127 (2006) 207-211.

DOI: 10.1016/j.mseb.2005.10.026

Google Scholar

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