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
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Online Access:http://eprints.utm.my/id/eprint/79297/1/NazleenSyahiraMFKE2018.pdf
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spelling my-utm-ep.792972018-10-14T08:42:07Z Dual-series 2 x 4 switched-beam nolen matrix for fifth generation wireless communication system 2018 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 http://eprints.utm.my/id/eprint/79297/ http://eprints.utm.my/id/eprint/79297/1/NazleenSyahiraMFKE2018.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering
institution Universiti Teknologi Malaysia
collection UTM Institutional Repository
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
qualification_level Master's degree
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
granting_institution Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department Faculty of Electrical Engineering
publishDate 2018
url http://eprints.utm.my/id/eprint/79297/1/NazleenSyahiraMFKE2018.pdf
_version_ 1747818194047860736