X-band metamaterial absorber for anti-motion detector

A motion detector is a device designed for sense motion, particularly humans for security and surveillance purpose. The counter-product of a detector is an absorber. Applied for various modern military and civil technologies, the study of absorber has been expanded to a very wide area, including in...

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Main Author:	Isa, Siti Nurzulaiha
Format:	Thesis
Language:	English
Published:	2018
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/79532/1/SitiNurzulaihaIsamFKE2018.pdf
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id	my-utm-ep.79532
record_format	uketd_dc
spelling	my-utm-ep.795322018-10-31T12:54:47Z X-band metamaterial absorber for anti-motion detector 2018 Isa, Siti Nurzulaiha TK Electrical engineering. Electronics Nuclear engineering A motion detector is a device designed for sense motion, particularly humans for security and surveillance purpose. The counter-product of a detector is an absorber. Applied for various modern military and civil technologies, the study of absorber has been expanded to a very wide area, including in metamaterials. This report will discuss on an X-Band Metamaterial Absorber (MMAb) designed for anti-motion detector operating at 10.525 GHz. The proposed MMAb is aiming to achieve a maximum absorptivity that at least 90% of the electromagnetic radiation absorbed. It is expected to have wider operating angle that can be extended at least 60⁰. The design is aspired to reach a very high degree of insensitivity involving polarization through a series of simulation. By using CST Software, the absorber is designed from an orthodox pattern of annulled circle per unit block, which consists of textile-based substrate in between a metal-based ground plate and a top structure. The structure is then simulated in unit cell to determine the maximum absorptivity through a simple design. Through a series of calculation and observation, the parametric study of the structure is implemented, and from that point, the complication of the pattern is increased so that the maximum absorptivity can be accomplished. Some of the parameters concerned are width of the circle, size of a unit cell and angle of operation. As to consider the flexibility of the absorber, the bend factor of the MMAb is also applied in the simulation. The final design will be decided from the highest absorptivity attained in the series of simulation. The MMAb is expected to be flexible enough to be applied as wearable electromagnetic absorber that is sustainable in terms of absorbing electromagnetic wave from most of the definite directions. 2018 Thesis http://eprints.utm.my/id/eprint/79532/ http://eprints.utm.my/id/eprint/79532/1/SitiNurzulaihaIsamFKE2018.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Isa, Siti Nurzulaiha X-band metamaterial absorber for anti-motion detector
description	A motion detector is a device designed for sense motion, particularly humans for security and surveillance purpose. The counter-product of a detector is an absorber. Applied for various modern military and civil technologies, the study of absorber has been expanded to a very wide area, including in metamaterials. This report will discuss on an X-Band Metamaterial Absorber (MMAb) designed for anti-motion detector operating at 10.525 GHz. The proposed MMAb is aiming to achieve a maximum absorptivity that at least 90% of the electromagnetic radiation absorbed. It is expected to have wider operating angle that can be extended at least 60⁰. The design is aspired to reach a very high degree of insensitivity involving polarization through a series of simulation. By using CST Software, the absorber is designed from an orthodox pattern of annulled circle per unit block, which consists of textile-based substrate in between a metal-based ground plate and a top structure. The structure is then simulated in unit cell to determine the maximum absorptivity through a simple design. Through a series of calculation and observation, the parametric study of the structure is implemented, and from that point, the complication of the pattern is increased so that the maximum absorptivity can be accomplished. Some of the parameters concerned are width of the circle, size of a unit cell and angle of operation. As to consider the flexibility of the absorber, the bend factor of the MMAb is also applied in the simulation. The final design will be decided from the highest absorptivity attained in the series of simulation. The MMAb is expected to be flexible enough to be applied as wearable electromagnetic absorber that is sustainable in terms of absorbing electromagnetic wave from most of the definite directions.
format	Thesis
qualification_level	Master's degree
author	Isa, Siti Nurzulaiha
author_facet	Isa, Siti Nurzulaiha
author_sort	Isa, Siti Nurzulaiha
title	X-band metamaterial absorber for anti-motion detector
title_short	X-band metamaterial absorber for anti-motion detector
title_full	X-band metamaterial absorber for anti-motion detector
title_fullStr	X-band metamaterial absorber for anti-motion detector
title_full_unstemmed	X-band metamaterial absorber for anti-motion detector
title_sort	x-band metamaterial absorber for anti-motion detector
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2018
url	http://eprints.utm.my/id/eprint/79532/1/SitiNurzulaihaIsamFKE2018.pdf
_version_	1747818249306767360

X-band metamaterial absorber for anti-motion detector

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