Shielding Effectiveness of Rice Husk and CNT Composites in X-Band Frequency

Lee, Y.S and Malek, F. and Cheng, E.M and Liu, W.W and Wee, Fwen Hoon and Iqbal, M.N and Zahid, Liyana and Yew, Been Seok and Abdullah, F.S (2014) Shielding Effectiveness of Rice Husk and CNT Composites in X-Band Frequency. World Academy of Science, Engineering and Technology, 8 (12). pp. 1592-1595. ISSN 1307-6892

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Abstract

This paper presents the electromagnetic interference (EMI) shielding effectiveness of rice husk and carbon nanotubes (RHCNTs) composites in the X-band region (8.2-12.4 GHz). The difference weight ratio of carbon nanotubes (CNTs) were mix with the rice husk. The rectangular waveguide technique was used to measure the complex permittivity of the RHCNTs composites materials. The complex permittivity is represented in terms of both the real and imaginary parts of permittivity in X-band frequency. The conductivity of RHCNTs shows increasing when the ratio of CNTs mixture increases. The composites materials were simulated using Computer Simulation Technology (CST) Microwave Studio simulation software. The shielding effectiveness of RHCNTs and pure rice husk was compared. The highest EMI SE of 30 dB is obtained for RHCNTs composites of 10 wt % CNTs with 10mm thickness.

Item Type: Article
Subjects: T Technology > T Technology (General)
Faculty / Institute: Faculty of Design Arts & Engineering Technology
Depositing User: Dr Yew Been Seok
Date Deposited: 01 Jan 2015 07:47
Last Modified: 01 Jan 2015 07:47
URI: http://erep.unisza.edu.my/id/eprint/2743

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