Frequency selective surface (FSS) for cellular signals shelding

This thesis proposes a frequency selective surface (FSS) for interference control causes by the proliferation of mobile devices. FSS is a periodic structure etched on a dielectric substrate which acts as a spatial filter. The proposed FSS is designed as a band-stop filter to attenuate the cellular s...

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Main Author:	Abdul Khalid, Nur khalida
Format:	Thesis
Language:	English English English
Published:	2015
Subjects:	TK7800-8360 Electronics
Online Access:	http://eprints.uthm.edu.my/1406/2/NUR%20KHALIDA%20ABDUL%20KHALID%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1406/1/24p%20NUR%20KHALIDA%20ABDUL%20KHALID.pdf http://eprints.uthm.edu.my/1406/3/NUR%20KHALIDA%20ABDUL%20KHALID%20WATERMARK.pdf
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spelling	my-uthm-ep.14062021-10-03T06:45:30Z Frequency selective surface (FSS) for cellular signals shelding 2015-12 Abdul Khalid, Nur khalida TK7800-8360 Electronics This thesis proposes a frequency selective surface (FSS) for interference control causes by the proliferation of mobile devices. FSS is a periodic structure etched on a dielectric substrate which acts as a spatial filter. The proposed FSS is designed as a band-stop filter to attenuate the cellular signals operating at GSM900, GSM1800 and IMT2000 frequency bands. The employment of the FSS is an effective shielding technique as it eliminates the need for power supply and prevents the use of mobile phone without disrupting other types of communications. All the designs and simulations are done using the Computer Simulation Technology (CST) Microwave Studio software. There are three main groups of the FSS prototype designed in this study. The first group of the FSS prototype is etched on FR-4 substrate using the photolithography technique. On the other hand, the second group of the FSS prototype is printed on glossy paper substrate using the manual fabrication and inkjet printing techniques. These two techniques are implemented using the conductive silver pen and copper nanoparticle ink, respectively. The simulated results of the conventional square loop FSS printed on paper shows a good angular stability compared to the conventional square loop FSS printed on FR-4 substrate. The utilization of the inkjet printing technique is proposed in order to overcome the limitations of the manual fabrication technique. In order to transform a non-conductive printed pattern to a conductive one, the printed FSS element has to undergo the post-processing, called sintering. This consequently leads to a final prototype of the FSS printed on polyimide film. In order to validate the simulated results experimentally, the measurement is performed inside the anechoic chamber. The measured and simulated results are shown to be in a very good agreement with each other. FSS printed on glossy paper is highly recommended due to its very low cost and environmental-friendly material. 2015-12 Thesis http://eprints.uthm.edu.my/1406/ http://eprints.uthm.edu.my/1406/2/NUR%20KHALIDA%20ABDUL%20KHALID%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/1406/1/24p%20NUR%20KHALIDA%20ABDUL%20KHALID.pdf text en public http://eprints.uthm.edu.my/1406/3/NUR%20KHALIDA%20ABDUL%20KHALID%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 Abdul Khalid, Nur khalida Frequency selective surface (FSS) for cellular signals shelding
description	This thesis proposes a frequency selective surface (FSS) for interference control causes by the proliferation of mobile devices. FSS is a periodic structure etched on a dielectric substrate which acts as a spatial filter. The proposed FSS is designed as a band-stop filter to attenuate the cellular signals operating at GSM900, GSM1800 and IMT2000 frequency bands. The employment of the FSS is an effective shielding technique as it eliminates the need for power supply and prevents the use of mobile phone without disrupting other types of communications. All the designs and simulations are done using the Computer Simulation Technology (CST) Microwave Studio software. There are three main groups of the FSS prototype designed in this study. The first group of the FSS prototype is etched on FR-4 substrate using the photolithography technique. On the other hand, the second group of the FSS prototype is printed on glossy paper substrate using the manual fabrication and inkjet printing techniques. These two techniques are implemented using the conductive silver pen and copper nanoparticle ink, respectively. The simulated results of the conventional square loop FSS printed on paper shows a good angular stability compared to the conventional square loop FSS printed on FR-4 substrate. The utilization of the inkjet printing technique is proposed in order to overcome the limitations of the manual fabrication technique. In order to transform a non-conductive printed pattern to a conductive one, the printed FSS element has to undergo the post-processing, called sintering. This consequently leads to a final prototype of the FSS printed on polyimide film. In order to validate the simulated results experimentally, the measurement is performed inside the anechoic chamber. The measured and simulated results are shown to be in a very good agreement with each other. FSS printed on glossy paper is highly recommended due to its very low cost and environmental-friendly material.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Abdul Khalid, Nur khalida
author_facet	Abdul Khalid, Nur khalida
author_sort	Abdul Khalid, Nur khalida
title	Frequency selective surface (FSS) for cellular signals shelding
title_short	Frequency selective surface (FSS) for cellular signals shelding
title_full	Frequency selective surface (FSS) for cellular signals shelding
title_fullStr	Frequency selective surface (FSS) for cellular signals shelding
title_full_unstemmed	Frequency selective surface (FSS) for cellular signals shelding
title_sort	frequency selective surface (fss) for cellular signals shelding
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Electrical and Electronic Engineering
publishDate	2015
url	http://eprints.uthm.edu.my/1406/2/NUR%20KHALIDA%20ABDUL%20KHALID%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1406/1/24p%20NUR%20KHALIDA%20ABDUL%20KHALID.pdf http://eprints.uthm.edu.my/1406/3/NUR%20KHALIDA%20ABDUL%20KHALID%20WATERMARK.pdf
_version_	1747830782226857984

Frequency selective surface (FSS) for cellular signals shelding

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