Adaptive beamforming of steerable array monopole antenna for WLAN application

The modern communication systems are using smart portable devices that operate on WLAN frequency of 2.45 GHz. One of the serious limitations of handled devices is difficult to achieve a direct connection between the transmitter and receiver. Therefore, a smart steerable patter array antenna is highl...

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Main Author:	Amer Asem, Abdullah
Format:	Thesis
Language:	English English English
Published:	2018
Subjects:	TK7800-8360 Electronics
Online Access:	http://eprints.uthm.edu.my/180/1/24p%20ABDULLAH%20AMER%20ASEM.pdf http://eprints.uthm.edu.my/180/2/ABDULLAH%20AMER%20ASEM%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/180/3/ABDULLAH%20AMER%20ASEM%20WATERMARK.pdf
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spelling	my-uthm-ep.1802021-06-22T01:34:33Z Adaptive beamforming of steerable array monopole antenna for WLAN application 2018-07 Amer Asem, Abdullah TK7800-8360 Electronics The modern communication systems are using smart portable devices that operate on WLAN frequency of 2.45 GHz. One of the serious limitations of handled devices is difficult to achieve a direct connection between the transmitter and receiver. Therefore, a smart steerable patter array antenna is highly recommended for new generation communication. Using low-cost steerable passive monopole array antenna can achieve a beam steering and high gain. Loading an additional reactance to the passive elements of the array are changed the mutual coupling between the arrays, which leads to steering the pattern to the desired direction. However, this needs fast process accurate optimised parameters. In this study, four passives one active monopole array antenna is proposed and simulated by using CST Microwave Studio software. The adaptive beamforming is proposed by using downhill simplex algorithm. The results show that the optimum reactance values are suggested after 0.074 second with 94 iterations to achieve a direction of arrival of 180° and 0°. The simulated radiation is successfully steered to the direction of 180 ° by adding the suggested reactance into the passive elements. Furthermore, the antenna gain is improved by 1.3 dBi that achieved a value of 5.3 dBi.The envelope-cross-correlation (ECC) shows magnitudes less than 0.5 among the elements. This algorithm successfully is provided with the optimum reactance values. The proposed approach can be considered a fast and significant candidate for new generation of smart communication WLAN applications. 2018-07 Thesis http://eprints.uthm.edu.my/180/ http://eprints.uthm.edu.my/180/1/24p%20ABDULLAH%20AMER%20ASEM.pdf text en public http://eprints.uthm.edu.my/180/2/ABDULLAH%20AMER%20ASEM%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/180/3/ABDULLAH%20AMER%20ASEM%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 Amer Asem, Abdullah Adaptive beamforming of steerable array monopole antenna for WLAN application
description	The modern communication systems are using smart portable devices that operate on WLAN frequency of 2.45 GHz. One of the serious limitations of handled devices is difficult to achieve a direct connection between the transmitter and receiver. Therefore, a smart steerable patter array antenna is highly recommended for new generation communication. Using low-cost steerable passive monopole array antenna can achieve a beam steering and high gain. Loading an additional reactance to the passive elements of the array are changed the mutual coupling between the arrays, which leads to steering the pattern to the desired direction. However, this needs fast process accurate optimised parameters. In this study, four passives one active monopole array antenna is proposed and simulated by using CST Microwave Studio software. The adaptive beamforming is proposed by using downhill simplex algorithm. The results show that the optimum reactance values are suggested after 0.074 second with 94 iterations to achieve a direction of arrival of 180° and 0°. The simulated radiation is successfully steered to the direction of 180 ° by adding the suggested reactance into the passive elements. Furthermore, the antenna gain is improved by 1.3 dBi that achieved a value of 5.3 dBi.The envelope-cross-correlation (ECC) shows magnitudes less than 0.5 among the elements. This algorithm successfully is provided with the optimum reactance values. The proposed approach can be considered a fast and significant candidate for new generation of smart communication WLAN applications.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Amer Asem, Abdullah
author_facet	Amer Asem, Abdullah
author_sort	Amer Asem, Abdullah
title	Adaptive beamforming of steerable array monopole antenna for WLAN application
title_short	Adaptive beamforming of steerable array monopole antenna for WLAN application
title_full	Adaptive beamforming of steerable array monopole antenna for WLAN application
title_fullStr	Adaptive beamforming of steerable array monopole antenna for WLAN application
title_full_unstemmed	Adaptive beamforming of steerable array monopole antenna for WLAN application
title_sort	adaptive beamforming of steerable array monopole antenna for wlan application
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Electrical and Electronic Engineering
publishDate	2018
url	http://eprints.uthm.edu.my/180/1/24p%20ABDULLAH%20AMER%20ASEM.pdf http://eprints.uthm.edu.my/180/2/ABDULLAH%20AMER%20ASEM%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/180/3/ABDULLAH%20AMER%20ASEM%20WATERMARK.pdf
_version_	1747830547904724992

Adaptive beamforming of steerable array monopole antenna for WLAN application

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