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http://dx.doi.org/10.5515/KJKIEES.2007.18.11.1224

A Study on the EM Wave Absorber for the Electromagnetic Environment of Indoor Wireless LAN  

Yoon, Sang-Gil (Department of Radio Science & Engineering, Korea Maritime University)
Kim, Dong-Il (Department of Radio Science & Engineering, Korea Maritime University)
Lee, Dae-Hee (Department of Radio Science & Engineering, Korea Maritime University)
Choi, Chang-Mook (Department of Radio Science & Engineering, Korea Maritime University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.18, no.11, 2007 , pp. 1224-1230 More about this Journal
Abstract
Recently, wireless LAN are often applied in home or office because of its various of convenience. Frequency rage of wireless LAN specified by IEEE 802.11a is at 5.2 GHz and IEEE 802.11b is 2.4 GHz. But in offices with wireless LAN devices, reflection of waves against walls, ceilings, floors and desks made of metal creates multipath problems that reduce communication speed and lose data. These problems can be solved by using EM wave absorber. In this paper, we designed and fabricated EM wave absorbers using MnZn-ferrite, sendust, carbon and CPE(Chlorinated Polyethylene). The EM wave absorber with the ratio of MnZn-Ferrite : sendust : CPE=64 : 16 : 20 wt.% has thickness of 3.7 mm and absorption ability more than 17 dB at 2.4 GHz and the EM wave absorber with the ratio of MnZn-ferrite : carbon : CPE=40 : 15 : 45 wt.% has thickness of 3.8 mm and absorption ability more than 23 dB at 5.2 GHz.
Keywords
Absorption Ability; Carbon; EM Wave Absorber; MnZn-Ferrite; Sendust;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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