| Amorphous Metal Powder를 이용한 항만 물류 RFID 시스템용 전파흡수체 개발 |
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최동수, 유건석, 김동일 |
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| Development of EM Wave Absorber for Port Logistics RFID System by Using Amorphous Metal Powder |
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Dong-Soo Choi, Gun-Suk Yoo, Dong Il Kim |
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| Abstract |
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In this paper, we developed an EM wave absorber having the absorption ability of more than 15 dB for port logistics RFID system by using AMP. Firstly, we fabricated EM wave absorber by using AMP and CPE(Chlorinated Polyethylene) with different composition ratios 80 : 20 wt.% and 85 : 15 wt.%. Secondly, we designed the optimum EM wave absorber using the calculated material constants obtained from measured input impedance of the samples. Therefore, EM wave absorber with absorption ability of 17.5 dB at 433 MHz when composition ratio of AMP: CPE = 85 : 15 wt% and thickness of 5.5 mm |
| Key Words:
RFID;EM wave absorber AMP (Amorphous Metal Powder);absorption abilities;material constants |
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