The free space transmission-reflection method to determine of complex permittivity and complex permeability of the different fillers rubber materials at microwave frequencies / Suhaimi Yahaya

The main objective of this project is to develop a free space measurement system at microwave frequencies in the frequency range of 7.5 to 12 GHz (X-band) for measured a reflection coefficient, Sn and transmission coefficient, S21 of the different filler composition for two major filler which is Car...

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Main Author:	Yahaya, Suhaimi
Format:	Thesis
Language:	English
Published:	2003
Subjects:	Rubber industry
Online Access:	https://ir.uitm.edu.my/id/eprint/68777/1/68777.pdf
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id	my-uitm-ir.68777
record_format	uketd_dc
spelling	my-uitm-ir.687772023-01-05T07:13:38Z The free space transmission-reflection method to determine of complex permittivity and complex permeability of the different fillers rubber materials at microwave frequencies / Suhaimi Yahaya 2003 Yahaya, Suhaimi Rubber industry The main objective of this project is to develop a free space measurement system at microwave frequencies in the frequency range of 7.5 to 12 GHz (X-band) for measured a reflection coefficient, Sn and transmission coefficient, S21 of the different filler composition for two major filler which is Carbon Black and China Clay (i.e. 20 part per hundred rubber (pphr) carbon black or 40pphr china clay) for natural rubber. The complex permittivity and complex permeability is calculated from the measured values of Si 1 and S21. Second objective is to proved that increasing a composition of filler will increased the complex permittivity or electrical constant (e). Third is to proved that rubber is non magnetic material rubber which is gives a complex permeability (u) equal to 1 for real and 0 for imaginary part. Finally, to prove that the carbon black rubbers have higher conductivity properties compared to the china clay rubbers. The key components of the measurements system consist of transmit and receive spot focusing horn lens antenna, and the vector network analyzer. For thin, flexible samples, the sample had to be sandwiched between two half-wavelength (at mid band) Teflon plate, to eliminate the effect of sagging. Because of the far-field focusing ability of horn lens antennas free-space measurement can be made at microwave frequency in a relatively compact and simple measurement setup. 2003 Thesis https://ir.uitm.edu.my/id/eprint/68777/ https://ir.uitm.edu.my/id/eprint/68777/1/68777.pdf text en public degree Universiti Teknologi MARA (UiTM) Faculty of Electrical Engineering Ghodgaonkar, Deepak Kumar
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Ghodgaonkar, Deepak Kumar
topic	Rubber industry
spellingShingle	Rubber industry Yahaya, Suhaimi The free space transmission-reflection method to determine of complex permittivity and complex permeability of the different fillers rubber materials at microwave frequencies / Suhaimi Yahaya
description	The main objective of this project is to develop a free space measurement system at microwave frequencies in the frequency range of 7.5 to 12 GHz (X-band) for measured a reflection coefficient, Sn and transmission coefficient, S21 of the different filler composition for two major filler which is Carbon Black and China Clay (i.e. 20 part per hundred rubber (pphr) carbon black or 40pphr china clay) for natural rubber. The complex permittivity and complex permeability is calculated from the measured values of Si 1 and S21. Second objective is to proved that increasing a composition of filler will increased the complex permittivity or electrical constant (e). Third is to proved that rubber is non magnetic material rubber which is gives a complex permeability (u) equal to 1 for real and 0 for imaginary part. Finally, to prove that the carbon black rubbers have higher conductivity properties compared to the china clay rubbers. The key components of the measurements system consist of transmit and receive spot focusing horn lens antenna, and the vector network analyzer. For thin, flexible samples, the sample had to be sandwiched between two half-wavelength (at mid band) Teflon plate, to eliminate the effect of sagging. Because of the far-field focusing ability of horn lens antennas free-space measurement can be made at microwave frequency in a relatively compact and simple measurement setup.
format	Thesis
qualification_level	Bachelor degree
author	Yahaya, Suhaimi
author_facet	Yahaya, Suhaimi
author_sort	Yahaya, Suhaimi
title	The free space transmission-reflection method to determine of complex permittivity and complex permeability of the different fillers rubber materials at microwave frequencies / Suhaimi Yahaya
title_short	The free space transmission-reflection method to determine of complex permittivity and complex permeability of the different fillers rubber materials at microwave frequencies / Suhaimi Yahaya
title_full	The free space transmission-reflection method to determine of complex permittivity and complex permeability of the different fillers rubber materials at microwave frequencies / Suhaimi Yahaya
title_fullStr	The free space transmission-reflection method to determine of complex permittivity and complex permeability of the different fillers rubber materials at microwave frequencies / Suhaimi Yahaya
title_full_unstemmed	The free space transmission-reflection method to determine of complex permittivity and complex permeability of the different fillers rubber materials at microwave frequencies / Suhaimi Yahaya
title_sort	free space transmission-reflection method to determine of complex permittivity and complex permeability of the different fillers rubber materials at microwave frequencies / suhaimi yahaya
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Electrical Engineering
publishDate	2003
url	https://ir.uitm.edu.my/id/eprint/68777/1/68777.pdf
_version_	1783735809271136256

The free space transmission-reflection method to determine of complex permittivity and complex permeability of the different fillers rubber materials at microwave frequencies / Suhaimi Yahaya

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