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http://dx.doi.org/10.5394/KINPR.2008.32.5.349

Development of the EM Wave Absorber for Preventing RFID Reader Interference in UHF band  

Park, Soo-Hoon (Graduate school of Korea Maritime University)
Choi, Chang-Mook (Graduate school of Korea Maritime University)
Song, Young-Man (Graduate school of Korea Maritime University)
Kim, Dong-Il (Department of Radio Science and Engineering, Korea Maritime University)
Jung, Ji-Won (Department of Radio Science and Engineering, Korea Maritime University)
Kim, Ki-Man (Department of Radio Science and Engineering, Korea Maritime University)
Publication Information
Journal of Navigation and Port Research / v.32, no.5, 2008 , pp. 349-353 More about this Journal
Abstract
In this paper, the EM wave absorber was designed and fabricated for preventing Reader Interference of RFID communication system in UHF band We fabricated several samples in different composition ratios of Amorphous and CPE(Chlorinated Polyethylene). Absorption abilities were simulated in accordance with different thicknesses of the prepared absorbers and changed complex relative permittivity and permeability due to composition ratio. The mixing ratio of Amorphous and CPE was searched as 80 : 20 wt.% by experiments and simulation. Then the EM wave absorber was fabricated and tested using the simulated data. As a result, the developed EM wave absorber has a thickness of 4 mm and absorption ability was over 20 dB in frequency range of $860\;MHz{\sim}960\;MHz$. Therefore, it was confirmed that the developed absorber can be used for suppressing RFID reader interference in UHF band.
Keywords
reader interference; EM wave absorber; material constant; Amorphous; RFID; UHF;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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