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Dual-series 2 x 4 switched-beam nolen matrix for fifth generation wireless communication system

A new evolvement towards 5G technology requires a super high frequency to provide large channel capacity, low power consumption and low interference. Up to the present, the passive microwave devices with the super high frequency range are becoming necessity to be deployed due to the great features t...

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Main Author:	Mohd. Suhaimi, Nazleen Syahira
Format:	Thesis
Language:	English
Published:	2018
Subjects:	TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/79297/1/NazleenSyahiraMFKE2018.pdf http://eprints.utm.my/id/eprint/79297/
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spelling	my.utm.792972018-10-14T08:42:07Z http://eprints.utm.my/id/eprint/79297/ Dual-series 2 x 4 switched-beam nolen matrix for fifth generation wireless communication system Mohd. Suhaimi, Nazleen Syahira TK Electrical engineering. Electronics Nuclear engineering A new evolvement towards 5G technology requires a super high frequency to provide large channel capacity, low power consumption and low interference. Up to the present, the passive microwave devices with the super high frequency range are becoming necessity to be deployed due to the great features that are capable in representing significant advances in wireless communications. However, high interference occurs due to multiple signals coexisting in the super high frequency. Integration of switched-beam antenna that employs scanning of multi-beams with a proposed Nolen Matrix can be a solution to overcome this issue. The coupler with loaded T-shaped stubs, loaded stubs and Schiffman phase shifters as well as edge chamfered inset feeding microstrip patch array antenna are designed as the key components for the dual-series 2 x 4 switched-beam Nolen matrix. The loaded Tshaped stubs are introduced at each side of the microstrip lines nearby the square patch of the couplers to achieve various coupling values. All simulation results are obtained using Computer Simulation Technology software. The S-parameter measurement of the proposed couplers and dual-series 2 x 4 switched-beam Nolen matrix are performed using vector network analyzer, while its radiation pattern measurement is executed in an anechoic chamber. The amplitude and phase imbalances are ± 1 dB and 5° between 24.75 GHz and 27.25 GHz for the proposed couplers as well as between 25.75 GHz and 26.25 GHz for the phase shifters, respectively. Whereas, the respective amplitude and phase imbalances of 2 x 4 switched beam Nolen matrix are ± 3.5 dB and 10° across the designated frequency range of 25.75 GHz to 26.25 GHz. Meanwhile, at the center frequency of 26 GHz, the simulated and measured main beam directions are 10° and 12°, respectively when signal is fed at port 1, whereas -31° and -31.5°, respectively at port 2, with the highest measured gain of 10.19 dB and percentage of radiation efficiency of 59.98 %. 2018 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/79297/1/NazleenSyahiraMFKE2018.pdf Mohd. Suhaimi, Nazleen Syahira (2018) Dual-series 2 x 4 switched-beam nolen matrix for fifth generation wireless communication system. Masters thesis, Universiti Teknologi Malaysia, Faculty of Electrical Engineering.
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
language	English
topic	TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	TK Electrical engineering. Electronics Nuclear engineering Mohd. Suhaimi, Nazleen Syahira Dual-series 2 x 4 switched-beam nolen matrix for fifth generation wireless communication system
description	A new evolvement towards 5G technology requires a super high frequency to provide large channel capacity, low power consumption and low interference. Up to the present, the passive microwave devices with the super high frequency range are becoming necessity to be deployed due to the great features that are capable in representing significant advances in wireless communications. However, high interference occurs due to multiple signals coexisting in the super high frequency. Integration of switched-beam antenna that employs scanning of multi-beams with a proposed Nolen Matrix can be a solution to overcome this issue. The coupler with loaded T-shaped stubs, loaded stubs and Schiffman phase shifters as well as edge chamfered inset feeding microstrip patch array antenna are designed as the key components for the dual-series 2 x 4 switched-beam Nolen matrix. The loaded Tshaped stubs are introduced at each side of the microstrip lines nearby the square patch of the couplers to achieve various coupling values. All simulation results are obtained using Computer Simulation Technology software. The S-parameter measurement of the proposed couplers and dual-series 2 x 4 switched-beam Nolen matrix are performed using vector network analyzer, while its radiation pattern measurement is executed in an anechoic chamber. The amplitude and phase imbalances are ± 1 dB and 5° between 24.75 GHz and 27.25 GHz for the proposed couplers as well as between 25.75 GHz and 26.25 GHz for the phase shifters, respectively. Whereas, the respective amplitude and phase imbalances of 2 x 4 switched beam Nolen matrix are ± 3.5 dB and 10° across the designated frequency range of 25.75 GHz to 26.25 GHz. Meanwhile, at the center frequency of 26 GHz, the simulated and measured main beam directions are 10° and 12°, respectively when signal is fed at port 1, whereas -31° and -31.5°, respectively at port 2, with the highest measured gain of 10.19 dB and percentage of radiation efficiency of 59.98 %.
format	Thesis
author	Mohd. Suhaimi, Nazleen Syahira
author_facet	Mohd. Suhaimi, Nazleen Syahira
author_sort	Mohd. Suhaimi, Nazleen Syahira
title	Dual-series 2 x 4 switched-beam nolen matrix for fifth generation wireless communication system
title_short	Dual-series 2 x 4 switched-beam nolen matrix for fifth generation wireless communication system
title_full	Dual-series 2 x 4 switched-beam nolen matrix for fifth generation wireless communication system
title_fullStr	Dual-series 2 x 4 switched-beam nolen matrix for fifth generation wireless communication system
title_full_unstemmed	Dual-series 2 x 4 switched-beam nolen matrix for fifth generation wireless communication system
title_sort	dual-series 2 x 4 switched-beam nolen matrix for fifth generation wireless communication system
publishDate	2018
url	http://eprints.utm.my/id/eprint/79297/1/NazleenSyahiraMFKE2018.pdf http://eprints.utm.my/id/eprint/79297/
_version_	1643658154729275392
score	13.211869

Dual-series 2 x 4 switched-beam nolen matrix for fifth generation wireless communication system

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