Directive ultra wideband antenna for medical applications

Since the acceptance of unlicensed band of Ultra-Wideband (UWB) technology in the range between 3.1 and 10.6 GHz, the realization of low-cost UWB wireless systems is considered a fundamental research goal both for military and commercial applications. The possible use and benefits of UWB technology...

Full description

Saved in:

Bibliographic Details
Main Author:	Mohamed, Habib Abdullahi
Format:	Thesis
Language:	English English English
Published:	2020
Subjects:	TK5101-6720 Telecommunication Including telegraphy, telephone, radio, radar, television
Online Access:	http://eprints.uthm.edu.my/385/1/24p%20HABIB%20ABDULLAHI%20MOHAMED.pdf http://eprints.uthm.edu.my/385/2/HABIB%20ABDULLAHI%20MOHAMED%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/385/3/HABIB%20ABDULLAHI%20MOHAMED%20WATERMARK.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-uthm-ep.385
record_format	uketd_dc
spelling	my-uthm-ep.3852021-07-25T01:31:48Z Directive ultra wideband antenna for medical applications 2020-01 Mohamed, Habib Abdullahi TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television Since the acceptance of unlicensed band of Ultra-Wideband (UWB) technology in the range between 3.1 and 10.6 GHz, the realization of low-cost UWB wireless systems is considered a fundamental research goal both for military and commercial applications. The possible use and benefits of UWB technology are significant among its potential applications, high-resolution radar and short-range ultra-high speed data transmission. However, one of the most critical challenging task of the UWB system is the designing of a compact size antenna that possess a good gain and high directivity. Thus, the aim of this project is to design and develop a directive and miniaturized antenna for UWB applications. The antenna is designed and fabricated on a Flame Retardant (FR4) laminated substrate with dielectric constant, ԑr of 4.3 and thickness of 1.6mm. Several numbers of antennas have been carried out throughout the completion of the project. Firstly, an antenna with slots on radiator has been designed. Subsequently, Ground Defected Structure (DGS) is implemented. For increasing bandwidth and impedance matching of the first antenna, thus an antenna with compact dimension of 25×45mm2 has been resulted. Finally, a reflector structure with the distance of 18mm is added for directivity and gain enhancement. The antenna with reflector has been fabricated using etching technique and being measured for the reflection coefficient. As the result, by applying reflector, the directivity and gain of the antenna has increased significantly, from 5.81dBi to 7.06dBi. This showed 21.52% gain improvement of the proposed antenna by implementing reflector. Therefore, the proposed antenna which has compact size and high gain is seen as a suitable candidate for the use of UWB applications. 2020-01 Thesis http://eprints.uthm.edu.my/385/ http://eprints.uthm.edu.my/385/1/24p%20HABIB%20ABDULLAHI%20MOHAMED.pdf text en public http://eprints.uthm.edu.my/385/2/HABIB%20ABDULLAHI%20MOHAMED%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/385/3/HABIB%20ABDULLAHI%20MOHAMED%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Fakulti Kejuruteraan Elektrik dan Elektronik
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TK5101-6720 Telecommunication Including telegraphy, telephone, radio, radar, television
spellingShingle	TK5101-6720 Telecommunication Including telegraphy, telephone, radio, radar, television Mohamed, Habib Abdullahi Directive ultra wideband antenna for medical applications
description	Since the acceptance of unlicensed band of Ultra-Wideband (UWB) technology in the range between 3.1 and 10.6 GHz, the realization of low-cost UWB wireless systems is considered a fundamental research goal both for military and commercial applications. The possible use and benefits of UWB technology are significant among its potential applications, high-resolution radar and short-range ultra-high speed data transmission. However, one of the most critical challenging task of the UWB system is the designing of a compact size antenna that possess a good gain and high directivity. Thus, the aim of this project is to design and develop a directive and miniaturized antenna for UWB applications. The antenna is designed and fabricated on a Flame Retardant (FR4) laminated substrate with dielectric constant, ԑr of 4.3 and thickness of 1.6mm. Several numbers of antennas have been carried out throughout the completion of the project. Firstly, an antenna with slots on radiator has been designed. Subsequently, Ground Defected Structure (DGS) is implemented. For increasing bandwidth and impedance matching of the first antenna, thus an antenna with compact dimension of 25×45mm2 has been resulted. Finally, a reflector structure with the distance of 18mm is added for directivity and gain enhancement. The antenna with reflector has been fabricated using etching technique and being measured for the reflection coefficient. As the result, by applying reflector, the directivity and gain of the antenna has increased significantly, from 5.81dBi to 7.06dBi. This showed 21.52% gain improvement of the proposed antenna by implementing reflector. Therefore, the proposed antenna which has compact size and high gain is seen as a suitable candidate for the use of UWB applications.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Mohamed, Habib Abdullahi
author_facet	Mohamed, Habib Abdullahi
author_sort	Mohamed, Habib Abdullahi
title	Directive ultra wideband antenna for medical applications
title_short	Directive ultra wideband antenna for medical applications
title_full	Directive ultra wideband antenna for medical applications
title_fullStr	Directive ultra wideband antenna for medical applications
title_full_unstemmed	Directive ultra wideband antenna for medical applications
title_sort	directive ultra wideband antenna for medical applications
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Kejuruteraan Elektrik dan Elektronik
publishDate	2020
url	http://eprints.uthm.edu.my/385/1/24p%20HABIB%20ABDULLAHI%20MOHAMED.pdf http://eprints.uthm.edu.my/385/2/HABIB%20ABDULLAHI%20MOHAMED%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/385/3/HABIB%20ABDULLAHI%20MOHAMED%20WATERMARK.pdf
_version_	1747830597673287680

Directive ultra wideband antenna for medical applications

Similar Items