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http://dx.doi.org/10.5394/KINPR.2010.34.7.539

A Study on the EM Wave Absorber for Improving Electromagnetic Environment of Wireless LAN at 2.4 GHz  

Yoo, Gun-Suk (Department of Radio Sciences and Engineering, Korea Maritime University)
Kim, Dong-Il (Department of Radio Sciences and Engineering, Korea Maritime University)
Choi, Dong-Soo (Department of Radio Sciences and Engineering, Korea Maritime University)
Choi, Dong-Han (Department of Radio Sciences and Engineering, Korea Maritime University)
Publication Information
Journal of Navigation and Port Research / v.34, no.7, 2010 , pp. 539-542 More about this Journal
Abstract
In this paper, we designed and fabricated the Electro-Magnetic (EM) wave absorber for wireless LAN by using Amorphous and CPE. The material constants and the absorption properties were measured for the samples containing 50 %, 60 %, and 70 % weight fraction of Amorphous. Moreover, the EM wave absorption abilities were simulated for the EM absorbers in different thicknesses by adopting the measured permittivity and permeability, and then the EM wave absorber was fabricated based on the simulated design values. As a result, the EM wave absorber with the composition ratio in Amorphous : CPE = 60 : 40 wt.% with the thickness of 4 mm has the absorption ability more than 35 dB at 2.4 GHz. Thus, it is expected the wireless LAN environment can be improved by using the developed absorber.
Keywords
EM wave absorber; CPE; wireless Lan; Amorphous; Absorption ability; material constant;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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1 Kim, D. I., Takahashi, M., Anzai, H. and Jun, S. Y.(1996), "Electromagnetic Wave Absorber With Wide-Band Frequency Characteristics Using Exponentially Tapered Ferrite,” IEEE Trans. on EMC, Vol. 38, No. 2, pp. 173-177.   DOI
2 Moon, S. H., Shin, S. J., Song, J. M. and Kim, D. I.(2003), "Development of composite Ba ferrite EM wave absorbers for GHz frequency", J. Korea Electromagnetic Engineering Soc., vol. 14, no. 12, pp. 1329-1334.   과학기술학회마을
3 NITTA, S.(2000), "The Future of EMC Technology", IEICE Trans. Commun, vol. E83-B, no. 3.
4 Pozer, D. M.(2005), Microwave Engineering - 3rd ed., J. Wiley & Sons.
5 Snoek, J. L(1984), "Dispersion and Absorption in Magnetic Ferrite at Frequency above one Mc/s", physical, vol. 14, pp. 207-217.   DOI   ScienceOn
6 Soh, T., Hashomoto, O.(2001), "A Study on Millimeter-Wave Absorber coating for V Band and W Band", Trans. IEICE J84-B, pp. 1523-1528.
7 Stphen V., Sailiga, Ph. D.(2000), "An Introduction to IEEE 802.11 Wireless LANs", Radio Frequency Integrated Circuits(RFIC) Symposium.
8 Choi, C. M., Kim, D. I., Li, R. and Ko, K. S.(2006), "Development of the Electromagnetic Wave Absorber for 94 GHz Radar Sensors Using Permalloy", Inter. J. KIMICS, vol.4, no.3, pp.114-117.   과학기술학회마을
9 Hashimoto, O.(1997), Introduction to Wave Absorber, Morikita Shuppan.
10 Choi, D. H., Kim, D. I. and Song, J. M(2003), “Dependence of Electromagnetic Wave Absorption Properties on Binders,” Journal of the Korean Physical Society, Vol. 42, No. 6, pp. 799-802.
11 Kim, D. H., Kim, D. I., Choi, C. M. and Son, J. Y.(2006), “A Study on Design and Fabrication of Complex Type EM Wave Absorber with Super Wide-band Characteristics," International Journal of Navigation and Port Research, Vol. 30, No. 2, pp. 161-166.   과학기술학회마을   DOI   ScienceOn