Fabrication of frequency selective structure and evaluation of microwave transmission on energy saving glass

The use of energy saving glass has become very popular in the modern day building design. This energy saving property is achieved by applying a very thin tin oxide (SnO2) coating on one side of the glass. This coating can provide good thermal insulation to the buildings by blocking infrared rays whi...

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Main Author:	Lim, Huey Sia
Format:	Thesis
Language:	English English English
Published:	2015
Subjects:	TK7800-8360 Electronics
Online Access:	http://eprints.uthm.edu.my/1345/2/LIM%20HUEY%20SIA%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1345/1/24p%20LIM%20HUEY%20SIA.pdf http://eprints.uthm.edu.my/1345/3/LIM%20HUEY%20SIA%20WATERMARK.pdf
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spelling	my-uthm-ep.13452021-10-03T06:31:03Z Fabrication of frequency selective structure and evaluation of microwave transmission on energy saving glass 2015-02 Lim, Huey Sia TK7800-8360 Electronics The use of energy saving glass has become very popular in the modern day building design. This energy saving property is achieved by applying a very thin tin oxide (SnO2) coating on one side of the glass. This coating can provide good thermal insulation to the buildings by blocking infrared rays while being transparent to visible part of the spectrum. Drawbacks of these energy saving windows is that it also attenuates the transmission of useful microwave signals through them. These signals fall within the frequency band of 0.8GHz to 2.2GHz. In order to pass these signals through the coated glass, the use of aperture type frequency selective surface (FSS) has being proposed. In the present work, SnO2 thin film with FSS structure was fabricated using RF magnetron sputtering technique and printed circuit board technology. Deposition time, dissipation power and oxygen flow rate were varied during the sputtering deposition process. Atomic force microscopy (AFM) and field emission-scanning electron microscopy (FE-SEM) were used to analyze the surface morphology and roughness of the SnO2 thin film. Two point electrical probe analysis was used to determine the sheet resistance and resistivity of the SnO2 thin film. Thickness of SnO2 thin film was measured using surface profiler. Good correlation between the surface properties and electrical properties of SnO2 thin film was obtained. Microwave transmission through SnO2 coated glass with FSS structure was also analyzed using network analyzer. The result of computer simulation was confirmed and consistent with the network analyzer results that showed the improvement of SnO2 coated glass with the FSS structure. Thermal analysis demonstrated that FSS structure had allows the transmission of GSM mobile signal penetrate in the buildings while blocking the infrared light with the SnO2 film properties. 2015-02 Thesis http://eprints.uthm.edu.my/1345/ http://eprints.uthm.edu.my/1345/2/LIM%20HUEY%20SIA%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/1345/1/24p%20LIM%20HUEY%20SIA.pdf text en public http://eprints.uthm.edu.my/1345/3/LIM%20HUEY%20SIA%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Faculty of Electrical and Electronic Engineering
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TK7800-8360 Electronics
spellingShingle	TK7800-8360 Electronics Lim, Huey Sia Fabrication of frequency selective structure and evaluation of microwave transmission on energy saving glass
description	The use of energy saving glass has become very popular in the modern day building design. This energy saving property is achieved by applying a very thin tin oxide (SnO2) coating on one side of the glass. This coating can provide good thermal insulation to the buildings by blocking infrared rays while being transparent to visible part of the spectrum. Drawbacks of these energy saving windows is that it also attenuates the transmission of useful microwave signals through them. These signals fall within the frequency band of 0.8GHz to 2.2GHz. In order to pass these signals through the coated glass, the use of aperture type frequency selective surface (FSS) has being proposed. In the present work, SnO2 thin film with FSS structure was fabricated using RF magnetron sputtering technique and printed circuit board technology. Deposition time, dissipation power and oxygen flow rate were varied during the sputtering deposition process. Atomic force microscopy (AFM) and field emission-scanning electron microscopy (FE-SEM) were used to analyze the surface morphology and roughness of the SnO2 thin film. Two point electrical probe analysis was used to determine the sheet resistance and resistivity of the SnO2 thin film. Thickness of SnO2 thin film was measured using surface profiler. Good correlation between the surface properties and electrical properties of SnO2 thin film was obtained. Microwave transmission through SnO2 coated glass with FSS structure was also analyzed using network analyzer. The result of computer simulation was confirmed and consistent with the network analyzer results that showed the improvement of SnO2 coated glass with the FSS structure. Thermal analysis demonstrated that FSS structure had allows the transmission of GSM mobile signal penetrate in the buildings while blocking the infrared light with the SnO2 film properties.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Lim, Huey Sia
author_facet	Lim, Huey Sia
author_sort	Lim, Huey Sia
title	Fabrication of frequency selective structure and evaluation of microwave transmission on energy saving glass
title_short	Fabrication of frequency selective structure and evaluation of microwave transmission on energy saving glass
title_full	Fabrication of frequency selective structure and evaluation of microwave transmission on energy saving glass
title_fullStr	Fabrication of frequency selective structure and evaluation of microwave transmission on energy saving glass
title_full_unstemmed	Fabrication of frequency selective structure and evaluation of microwave transmission on energy saving glass
title_sort	fabrication of frequency selective structure and evaluation of microwave transmission on energy saving glass
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Electrical and Electronic Engineering
publishDate	2015
url	http://eprints.uthm.edu.my/1345/2/LIM%20HUEY%20SIA%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1345/1/24p%20LIM%20HUEY%20SIA.pdf http://eprints.uthm.edu.my/1345/3/LIM%20HUEY%20SIA%20WATERMARK.pdf
_version_	1747830771690766336

Fabrication of frequency selective structure and evaluation of microwave transmission on energy saving glass

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