Dual band monopole antenna with harmonic suppression capability

Growing communication industry have overstated the demand for high performance multi-purpose antenna systems. Monopole antenna are well known for their compact size and low profile applications. The use of GSM and the ISM band frequencies at the same time by different devices require multiple antenn...

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Bibliographic Details
Main Author:	Mohamed Abdirahman, Abdiaziz
Format:	Thesis
Language:	English English English
Published:	2018
Subjects:	TK5101-6720 Telecommunication Including telegraphy, telephone, radio, radar, television
Online Access:	http://eprints.uthm.edu.my/408/1/24p%20ABDIAZIZ%20MOHAMED%20ABDIRAHMAN.pdf http://eprints.uthm.edu.my/408/2/ABDIAZIZ%20MOHAMED%20ABDIRAHMAN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/408/3/ABDIAZIZ%20MOHAMED%20ABDIRAHMAN%20WATERMARK.pdf
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id	my-uthm-ep.408
record_format	uketd_dc
spelling	my-uthm-ep.4082021-07-25T02:38:35Z Dual band monopole antenna with harmonic suppression capability 2018-07 Mohamed Abdirahman, Abdiaziz TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television Growing communication industry have overstated the demand for high performance multi-purpose antenna systems. Monopole antenna are well known for their compact size and low profile applications. The use of GSM and the ISM band frequencies at the same time by different devices require multiple antenna to support more than two frequencies. Thus this states the requirement and demand for antenna with multiple frequencies of operation and capability. However different dual band antennas also suffer from harmonic generation and higher order resonances. Due to these higher order resonances electromagnetic interference and noise increases and thus they bring down the performance of communication systems. In order to address the problem this research proposes a dual band operation with a Monopole antenna for GSM and ISM band of operation. The antenna resonates at 0.9 MHz for GSM band and 2.4 GHz for ISM band. The antenna was simulated using CST MWS. The proposed antenna was having a dual band operation with harmonics in the higher order bands. In order to reduce the harmonic of the antenna. The stub loaded feed line was proposed. Three different length stubs were attached with the antenna feed line in order to suppress the harmonics on the patch antenna. A thorough investigation was carried out for the harmonic suppression below – 10 dB level. The antenna was fabricated above FR-4 based epoxy substrate material. Scattering parameter measurements were performed using vector network analyzer. The comparison of results shows a good agreement between the measured and the simulated results. It has been demonstrated that the proposed antenna design configuration shows dual resonance at 0.9 and 2.40 GHz for GSM and ISM bands at total efficiencies above 80%. Moreover, the application of stubs attached to the feed line the harmonics suppression has been achieved below -10 for the frequency band of 3 -10 GHz. 2018-07 Thesis http://eprints.uthm.edu.my/408/ http://eprints.uthm.edu.my/408/1/24p%20ABDIAZIZ%20MOHAMED%20ABDIRAHMAN.pdf text en public http://eprints.uthm.edu.my/408/2/ABDIAZIZ%20MOHAMED%20ABDIRAHMAN%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/408/3/ABDIAZIZ%20MOHAMED%20ABDIRAHMAN%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	TK5101-6720 Telecommunication Including telegraphy, telephone, radio, radar, television
spellingShingle	TK5101-6720 Telecommunication Including telegraphy, telephone, radio, radar, television Mohamed Abdirahman, Abdiaziz Dual band monopole antenna with harmonic suppression capability
description	Growing communication industry have overstated the demand for high performance multi-purpose antenna systems. Monopole antenna are well known for their compact size and low profile applications. The use of GSM and the ISM band frequencies at the same time by different devices require multiple antenna to support more than two frequencies. Thus this states the requirement and demand for antenna with multiple frequencies of operation and capability. However different dual band antennas also suffer from harmonic generation and higher order resonances. Due to these higher order resonances electromagnetic interference and noise increases and thus they bring down the performance of communication systems. In order to address the problem this research proposes a dual band operation with a Monopole antenna for GSM and ISM band of operation. The antenna resonates at 0.9 MHz for GSM band and 2.4 GHz for ISM band. The antenna was simulated using CST MWS. The proposed antenna was having a dual band operation with harmonics in the higher order bands. In order to reduce the harmonic of the antenna. The stub loaded feed line was proposed. Three different length stubs were attached with the antenna feed line in order to suppress the harmonics on the patch antenna. A thorough investigation was carried out for the harmonic suppression below – 10 dB level. The antenna was fabricated above FR-4 based epoxy substrate material. Scattering parameter measurements were performed using vector network analyzer. The comparison of results shows a good agreement between the measured and the simulated results. It has been demonstrated that the proposed antenna design configuration shows dual resonance at 0.9 and 2.40 GHz for GSM and ISM bands at total efficiencies above 80%. Moreover, the application of stubs attached to the feed line the harmonics suppression has been achieved below -10 for the frequency band of 3 -10 GHz.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Mohamed Abdirahman, Abdiaziz
author_facet	Mohamed Abdirahman, Abdiaziz
author_sort	Mohamed Abdirahman, Abdiaziz
title	Dual band monopole antenna with harmonic suppression capability
title_short	Dual band monopole antenna with harmonic suppression capability
title_full	Dual band monopole antenna with harmonic suppression capability
title_fullStr	Dual band monopole antenna with harmonic suppression capability
title_full_unstemmed	Dual band monopole antenna with harmonic suppression capability
title_sort	dual band monopole antenna with harmonic suppression capability
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Electrical and Electronic Engineering
publishDate	2018
url	http://eprints.uthm.edu.my/408/1/24p%20ABDIAZIZ%20MOHAMED%20ABDIRAHMAN.pdf http://eprints.uthm.edu.my/408/2/ABDIAZIZ%20MOHAMED%20ABDIRAHMAN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/408/3/ABDIAZIZ%20MOHAMED%20ABDIRAHMAN%20WATERMARK.pdf
_version_	1747830602811310080

Dual band monopole antenna with harmonic suppression capability

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