Browse > Article
http://dx.doi.org/10.5515/KJKIEES.2009.20.6.509

A Study on the Evaluating Characteristics of EM Wave Absorber for Noise Suppression from PCB  

Kim, Dong-Il (Department of Radio Science & Engineering, Korea Maritime University)
Choi, Dong-Soo (Department of Radio Science & Engineering, Korea Maritime University)
Yoon, Sang-Gil (Department of Radio Science & Engineering, Korea Maritime University)
Yoo, Gun-Suk (Department of Radio Science & Engineering, Korea Maritime University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.20, no.6, 2009 , pp. 509-515 More about this Journal
Abstract
In this paper, we analyzed and evaluated noise suppression characteristic of EM wave absorber. We fabricated several absorber samples in different ratios of Sendust and Amorphous with CPE(Chlorinated Ploy-ethylene) as binder and calculated material constants by measured S-parameter. Then, we confirmed that the noise suppression characteristic of EM wave absorbers using microstrip line. A microstrip line with EM wave absorber placed on its top was used to evaluate the conduction noise suppression. As a result, noise suppression effect show different charateristic by changing relative permeability. Therefore, EM wave absorber using Sendust show excellent characteristic. In particular the maximum power absorption over 90 % in 1.7 GHz to over 6 GHz has obtained when composition of Sendust:CPE=80:20wt.%.
Keywords
EMC; EM Wave Absorber; Sendust; Amorphous; Noise Suppression Characteristic;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 김선태, 김선홍, 김성수, " 마이크로스트립 라인에서 유한요소법을 이용한 전도노이즈 흡수체의 성능 해석", 한국자기학회지, 17(6), pp. 242-245, 2007년 12월   DOI   ScienceOn
2 공성식, 안형태, 정삼영, "전자파 장해 방지 국제표준기술 작업 동향", 한국전자파학회지 전자파기술, 14 (4), pp. 81-91, 2003년 10월   ScienceOn
3 Sang-Hyun Moon, Seung-Jae Shin, Jae-Man Song, Dong-Il Kim, and Ki-Man Kim, "Development of composite Ba ferrite EM wave absorbers for GHz frequency", J. Korea Electromagnetic Engineering Soc., vol. 14, no. 12, pp. 1329-1334, Dec. 2003   과학기술학회마을   ScienceOn
4 Y. Naito, Electromagnetic Wave Absorbers, Tokyo: New Ohm, 1987
5 Hashimoto, Introduction to Wave Absorber, Tokyo: Morikita Shuppan, 1997
6 김동일, "전파흡수/차폐재", 한국전자파학회지 전자파기술, 9(2), p. 1, 1998년 6월
7 김동일, 전파흡수체공학, 대영사, 2006년
8 Chong-Mook Choi, Dong Il Kim, Dong-Han Choi, and Rui Li, "Development of broad-band electro magnetic wave absorber for X-band sensors in double-layered type using carbon", 12th IAIN World Congress, vol. 1, pp. 297-300, Oct. 2006
9 Shiehiro Ohnuma, Hideaki Nagura, Hiroyasu Fuhimori, and Tsuyoshi Masumoto, "Noise suppression effect of nanogranular Co based magnetic thin films at gigahertz frequency", IEEE Transactions on Magnetics, vol. 40, no. 4, pp. 2712-2715, Jul. 2004   DOI   ScienceOn