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http://dx.doi.org/10.6109/jkiice.2015.19.3.500

Fabrication and Evaluation of the Super Thin-Type EM Wave Absorber for Suppressing EM Noises in 2.4 GHz Band  

Kim, Dong Il (Department of Radio Sciences & Eng., Korea Maritime & Ocean University)
Kwak, Hyun Soo (Department of Radio Sciences & Eng., Korea Maritime & Ocean University)
Joo, Yang Ick (Elec. & Electronics Eng. of Korea Maritime Univ.)
Park, Soo Hoon (Gyungnam Techno-Park)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.19, no.3, 2015 , pp. 500-506 More about this Journal
Abstract
In this paper, we designed and fabricated the EM wave absorber consisted of Sendust for suppressing EM wave noise PCB in ISM (Industrial, Scientific and Medical) band of 2.4 GHz. We fabricated several samples with different composition ratios of some kinds of Sendust to CPE (Chlorinated Ploy-ethylene) as a binder, and it was confirmed that the optimum composition ratio of absorbing materials was Flaked Sendust : CPE = 72.5 : 27.5 wt.%.. The absorbing abilities were simulated by changing the thickness and the measured material constants of EM wave absorber. The measured absorption abilities were analyzed and compared with the simulated ones. As a result, the simulated results agree well with the measured ones, and the developed EM wave absorber with extremely thin thickness of 0.6 mm has absorption ability of 5.4 dB at 2.4 GHz is excellent one. The thin type EM wave absorber can be applied for suppressing and absorbing electromagnetic noises from information and communication equipments.
Keywords
ISM band; EM wave absorber; Sendust; absorption ability; material constants;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Dong Il Kim, "EMW Absorption/Shielding Material," EMW Technology, KIEES, Vol. 9, No. 2, Jun. 1998.
2 Dong Soo Choi, et al, "Design and Fabrication of the EM Wave Absorber with Excellent Characteristics for ETC System." Journal of the Korean Institute of Electromagnetic Enginnring and Science, Vol. 12, No. 1, 20-25, Mar. 2012.   DOI
3 Dong Il Kim, Jeong Chang Kim, Yang Ick Joo, "Development of the EM wave Absorber for Improving the Performance of Hi-Pass System in ITS", Journal of the KIICE. Vol.18, No 7, pp. 1505-1510, Jul. 2014.
4 D. I. Kim, EMW Absorber Engineering, Dae-Young Pub. Co. Ltd., 2006.
5 M. H. Kim, et al., "Usage and Technical Standard of Frequency Band for ISM," Proceedings of KICS, KICS, pp. 105-113, Jan. 1997.
6 Y. Naito, Electromagnetic Wave Absorbers, Ohm Pub. Co., Ltd., 1987.
7 O. Hashimoto, Introduction to Wave absorber, Morikita Shuppan, 1997.
8 Chang-Mook Choi, Dong Il Kim, Dong-Han Choi, Rui Li, "Development of Broad-Band Electromagnetic Wave Absorver for X-band Sensors in Double-layered Type Using Carbon," 12th IAIN World Congress, EMW Technology, KIEES, Vol. 9, No. 2, Vol. 1, pp. 297-300, Oct. 2006.
9 Sang-Hyun Moon, Seung-Jae Shin, Jae-Man Song, Dong Il Kim, "Development of composite ferrite EM wave absorbers for GHz frequency," Journal of Korea Electro- magnetic Engineering Soc., Vol. 14, No. 12, pp. 1329-1334, Nov. 2003.