Analysis of developing EM wave absorber for port logistics RFID system by using Amorphous metal powder

Author

Choi, Dong Soo ; Kim, Dong Il ; Kim, Do Yeol ; Choi, Dong Han

Author_Institution

Dept. of Radio Commun. Eng., Korea Maritime Univ., Busan, South Korea

fYear

2011

Firstpage

1474

Lastpage

1477

Abstract

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 Amorphous Metal Powder. Firstly, we fabricated EM wave absorber by using Amorphous Metal Powder 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 Amorphous Metal Powder : CPE = 85 : 15 wt.% and thickness of 5.5 mm.

Keywords

electromagnetic compatibility; electromagnetic wave absorption; logistics; powders; radiofrequency identification; sea ports; EM wave absorber fabrication; absorption ability; amorphous metal powder; composition ratio; frequency 433 MHz; input impedance measured; material constants; port logistic RFID system; size 5.5 mm; Absorption; Amorphous magnetic materials; Logistics; Metals; Powders; Radiofrequency identification; Amorphous metal powder; EM wave absorber; Electromagnetic Compatibility; Port logistics RFID system;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings (APMC), 2011 Asia-Pacific

Conference_Location

Melbourne, VIC

Print_ISBN

978-1-4577-2034-5

Type

conf

Filename

6174041