Development of metal mountable RFID tag antenna in ultra high frequency range / Najwa Mohd Faudzi

In recent years, Radio Frequency Identification (RFID) technology is highly demanded in various applications, requiring a rapid development in the RFID technology. The performance o f the RFID system mainly depends on the RFID tag, as the tag will be attached on the items or objects that need to be...

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Main Author:	Mohd Faudzi, Najwa
Format:	Thesis
Language:	English
Published:	2015
Online Access:	http://ir.uitm.edu.my/id/eprint/18412/ http://ir.uitm.edu.my/id/eprint/18412/2/TM_NAJWA%20MOHD%20FAUDZI%20EE%2015_5.pdf

id	uitm-18412
recordtype	eprints
spelling	uitm-184122019-02-20T02:05:28Z http://ir.uitm.edu.my/id/eprint/18412/ Development of metal mountable RFID tag antenna in ultra high frequency range / Najwa Mohd Faudzi Mohd Faudzi, Najwa In recent years, Radio Frequency Identification (RFID) technology is highly demanded in various applications, requiring a rapid development in the RFID technology. The performance o f the RFID system mainly depends on the RFID tag, as the tag will be attached on the items or objects that need to be identified. The research described in this thesis focuses on the development of the tag antenna designs to meet the requirements o f certain applications which are small size and insensitive to metal object. In this project, three designs o f UHF-RFID tag antenna were proposed; namely a compact dipole tag antenna, metal mountable meander feed line tag antenna and metal mountable ladder feed line tag antenna. The Design 1 tag antenna has obtained a size reduction o f 70% from the straight half wavelength dipole antenna through the implementation of two miniaturization methods, which are meandering and capacitive tip-loading. However, high sensitivity of the tag to the metal objects attached leads to the formation of the Design 2 tag antenna, which included a ground plane in the antenna structure. The Design 2 tag antenna was then improved to the Design 3 tag antenna, which has smaller size and better reading range, through the implementation of capacitive tip-loading structure and ladder feed line respectively. In order to easily match the impedance o f the antenna with the chip, a T-matching technique has been inserted in all three tag antenna designs. The simulation process was carried out using CST Studio Suite software, while the measurement of S n , antenna impedance and reading range was done using fabricated jig, Image method, Vector Network Analyzer and RFID reader. From measurement, the Design 1 tag antenna has achieved the longest reading range in free air with the value o f 9.6 in, but failed to be detected when attached on metal object. In contrast, Design 2 and Design 3 tag antennas can be detected in both conditions with the read range value of 2.2 m and 2.3 m in free air, while on metal object the read range is 2.0 m and 2.2 m respectively. 2015 Thesis NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/18412/2/TM_NAJWA%20MOHD%20FAUDZI%20EE%2015_5.pdf Mohd Faudzi, Najwa (2015) Development of metal mountable RFID tag antenna in ultra high frequency range / Najwa Mohd Faudzi. Masters thesis, Universiti Teknologi MARA.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
description	In recent years, Radio Frequency Identification (RFID) technology is highly demanded in various applications, requiring a rapid development in the RFID technology. The performance o f the RFID system mainly depends on the RFID tag, as the tag will be attached on the items or objects that need to be identified. The research described in this thesis focuses on the development of the tag antenna designs to meet the requirements o f certain applications which are small size and insensitive to metal object. In this project, three designs o f UHF-RFID tag antenna were proposed; namely a compact dipole tag antenna, metal mountable meander feed line tag antenna and metal mountable ladder feed line tag antenna. The Design 1 tag antenna has obtained a size reduction o f 70% from the straight half wavelength dipole antenna through the implementation of two miniaturization methods, which are meandering and capacitive tip-loading. However, high sensitivity of the tag to the metal objects attached leads to the formation of the Design 2 tag antenna, which included a ground plane in the antenna structure. The Design 2 tag antenna was then improved to the Design 3 tag antenna, which has smaller size and better reading range, through the implementation of capacitive tip-loading structure and ladder feed line respectively. In order to easily match the impedance o f the antenna with the chip, a T-matching technique has been inserted in all three tag antenna designs. The simulation process was carried out using CST Studio Suite software, while the measurement of S n , antenna impedance and reading range was done using fabricated jig, Image method, Vector Network Analyzer and RFID reader. From measurement, the Design 1 tag antenna has achieved the longest reading range in free air with the value o f 9.6 in, but failed to be detected when attached on metal object. In contrast, Design 2 and Design 3 tag antennas can be detected in both conditions with the read range value of 2.2 m and 2.3 m in free air, while on metal object the read range is 2.0 m and 2.2 m respectively.
format	Thesis
author	Mohd Faudzi, Najwa
spellingShingle	Mohd Faudzi, Najwa Development of metal mountable RFID tag antenna in ultra high frequency range / Najwa Mohd Faudzi
author_facet	Mohd Faudzi, Najwa
author_sort	Mohd Faudzi, Najwa
title	Development of metal mountable RFID tag antenna in ultra high frequency range / Najwa Mohd Faudzi
title_short	Development of metal mountable RFID tag antenna in ultra high frequency range / Najwa Mohd Faudzi
title_full	Development of metal mountable RFID tag antenna in ultra high frequency range / Najwa Mohd Faudzi
title_fullStr	Development of metal mountable RFID tag antenna in ultra high frequency range / Najwa Mohd Faudzi
title_full_unstemmed	Development of metal mountable RFID tag antenna in ultra high frequency range / Najwa Mohd Faudzi
title_sort	development of metal mountable rfid tag antenna in ultra high frequency range / najwa mohd faudzi
publishDate	2015
url	http://ir.uitm.edu.my/id/eprint/18412/ http://ir.uitm.edu.my/id/eprint/18412/2/TM_NAJWA%20MOHD%20FAUDZI%20EE%2015_5.pdf
first_indexed	2023-09-18T23:00:28Z
last_indexed	2023-09-18T23:00:28Z
_version_	1777418138644643840

Development of metal mountable RFID tag antenna in ultra high frequency range / Najwa Mohd Faudzi

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