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Advances in Materials Science and Engineering
Volume 2014 (2014), Article ID 965912, 5 pages
http://dx.doi.org/10.1155/2014/965912
Research Article

Effect of Material Thickness on Attenuation (dB) of PTFE Using Finite Element Method at X-Band Frequency

1Department of Physics, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
2Institute of Advance Technology (ITMA), Universiti Putra Malaysia (UPM), 43400 Serdang, Malaysia

Received 4 February 2014; Accepted 12 March 2014; Published 3 April 2014

Academic Editor: Qi-Long Zhang

Copyright © 2014 Abubakar Yakubu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

PTFE samples were prepared with different thicknesses. Their electric field intensity and distribution of the PTFE samples placed inside a rectangular waveguide were simulated using finite element method. The calculation of transmission/reflection coefficients for all samples thickness was achieved via FEM. Amongst other observable features, result from calculation using FEM showed that the attenuation for the 15 mm PTFE sample is −3.32 dB; the 30 mm thick PTFE sample has an attenuation of 0.64 dB, while the 50 mm thick PTFE sample has an attenuation of 1.97 dB. It then suffices to say that, as the thickness of the PTFE sample increases, the attenuation of the samples at the corresponding thicknesses increases.