Design Of High Gain Antenna With Harmonic Suppression Using T-Shape DGS And Spurline

The use of novel antenna with harmonic suppression is an attractive idea. There are many applications that could benefit from this such as cellular mobile radio, factory monitoring and biomedical applications. The potential for highly efficient of harmonic suppression at harmonic frequency is offere...

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Main Author:	Zainol, Nurzaimah
Format:	Thesis
Language:	English English
Published:	2016
Subjects:	T Technology (General)
Online Access:	http://eprints.utem.edu.my/id/eprint/18604/1/Design%20Of%20High%20Gain%20Antenna%20With%20Harmonic%20Suppression%20Using%20T-Shape%20DGS%20And%20Spurline.pdf http://eprints.utem.edu.my/id/eprint/18604/2/Design%20Of%20High%20Gain%20Antenna%20With%20Harmonic%20Suppression%20Using%20T-Shape%20DGS%20And%20Spurline.pdf
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spelling	my-utem-ep.186042022-02-11T14:48:08Z Design Of High Gain Antenna With Harmonic Suppression Using T-Shape DGS And Spurline 2016 Zainol, Nurzaimah T Technology (General) TK Electrical engineering. Electronics Nuclear engineering The use of novel antenna with harmonic suppression is an attractive idea. There are many applications that could benefit from this such as cellular mobile radio, factory monitoring and biomedical applications. The potential for highly efficient of harmonic suppression at harmonic frequency is offered by antenna itself. Conventionally, defected ground structure (DGS), electromagnetic band gap (EBG) and stub have been used for stop band characteristics. However, there are also challenges that arise from these antenna with harmonic suppression. One of them is the problem of fabricating the antenna which increase the cost and the other one they require large amount of circuit size and consequently require similar stop band characteristics which restrict their use in many important applications. The resulting antenna with harmonic suppression was ordinary one and have low gain at resonant frequency. Thus, a high gain antenna with harmonic suppression have gained a considerable interest over the past few years due to their advantages such as low cost, ease of fabrication and not complex. Therefore, this thesis presents a high gain antenna with harmonic suppression which produce broadband harmonic suppression with capability to suppress undesired harmonic signals from 3 GHz up to 8 GHz. These antenna with harmonic suppression are based on microstrip structure of T-shape DGS and spur line low pass filters by employing the perturbation theory, in which the dielectric properties of the substrate used affect the radiation characteristics of antenna. The antenna are designed at operating frequency of 2.45 GHz with harmonic suppression entirely second and third order. As a results, the final design of antenna has achieved a very good return loss which peaked up to -33.44 dB at 2.45 GHz operating frequency. In addition, it has an extremely high gain which achieved a 14.20 dB with a strong directional radiation pattern; and total efficiency achievement of the 2x2 antenna array is up to 98.86%. Besides that, the harmonic signals have been suppressed effectively from -29.19 dB to -7.77 dB at frequency of 3.24 GHz and achieved a broadband harmonic suppression. Experimentally, the measured· and simulated results are found in an excellent agreement and achieved high gain compared to those in literatures which has an average gain of 1 dB to 6 dB for the same applications. The antenna is designed and simulated by using Computer Simulation Technology (CST) Studio Suite. The presented work in this thesis consists of defining the characterizations for all subsystems which are preceded with optimized design process. It is believed that these high gain antenna with harmonic suppression would lead for a promising solution for RF/Microwave energy transfer particularly in suppressing the harmonic that degrade the system performance. 2016 Thesis http://eprints.utem.edu.my/id/eprint/18604/ http://eprints.utem.edu.my/id/eprint/18604/1/Design%20Of%20High%20Gain%20Antenna%20With%20Harmonic%20Suppression%20Using%20T-Shape%20DGS%20And%20Spurline.pdf text en public http://eprints.utem.edu.my/id/eprint/18604/2/Design%20Of%20High%20Gain%20Antenna%20With%20Harmonic%20Suppression%20Using%20T-Shape%20DGS%20And%20Spurline.pdf text en validuser http://library1.utem.edu.my:8000/elmu/index.jsp?module=webopac-d&action=fullDisplayRetriever.jsp&szMaterialNo=0000100660 mphil masters Universiti Teknikal Malaysia Melaka Faculty Of Electronic And Computer Engineering
institution	Universiti Teknikal Malaysia Melaka
collection	UTeM Repository
language	English English
topic	T Technology (General) T Technology (General)
spellingShingle	T Technology (General) T Technology (General) Zainol, Nurzaimah Design Of High Gain Antenna With Harmonic Suppression Using T-Shape DGS And Spurline
description	The use of novel antenna with harmonic suppression is an attractive idea. There are many applications that could benefit from this such as cellular mobile radio, factory monitoring and biomedical applications. The potential for highly efficient of harmonic suppression at harmonic frequency is offered by antenna itself. Conventionally, defected ground structure (DGS), electromagnetic band gap (EBG) and stub have been used for stop band characteristics. However, there are also challenges that arise from these antenna with harmonic suppression. One of them is the problem of fabricating the antenna which increase the cost and the other one they require large amount of circuit size and consequently require similar stop band characteristics which restrict their use in many important applications. The resulting antenna with harmonic suppression was ordinary one and have low gain at resonant frequency. Thus, a high gain antenna with harmonic suppression have gained a considerable interest over the past few years due to their advantages such as low cost, ease of fabrication and not complex. Therefore, this thesis presents a high gain antenna with harmonic suppression which produce broadband harmonic suppression with capability to suppress undesired harmonic signals from 3 GHz up to 8 GHz. These antenna with harmonic suppression are based on microstrip structure of T-shape DGS and spur line low pass filters by employing the perturbation theory, in which the dielectric properties of the substrate used affect the radiation characteristics of antenna. The antenna are designed at operating frequency of 2.45 GHz with harmonic suppression entirely second and third order. As a results, the final design of antenna has achieved a very good return loss which peaked up to -33.44 dB at 2.45 GHz operating frequency. In addition, it has an extremely high gain which achieved a 14.20 dB with a strong directional radiation pattern; and total efficiency achievement of the 2x2 antenna array is up to 98.86%. Besides that, the harmonic signals have been suppressed effectively from -29.19 dB to -7.77 dB at frequency of 3.24 GHz and achieved a broadband harmonic suppression. Experimentally, the measured· and simulated results are found in an excellent agreement and achieved high gain compared to those in literatures which has an average gain of 1 dB to 6 dB for the same applications. The antenna is designed and simulated by using Computer Simulation Technology (CST) Studio Suite. The presented work in this thesis consists of defining the characterizations for all subsystems which are preceded with optimized design process. It is believed that these high gain antenna with harmonic suppression would lead for a promising solution for RF/Microwave energy transfer particularly in suppressing the harmonic that degrade the system performance.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Zainol, Nurzaimah
author_facet	Zainol, Nurzaimah
author_sort	Zainol, Nurzaimah
title	Design Of High Gain Antenna With Harmonic Suppression Using T-Shape DGS And Spurline
title_short	Design Of High Gain Antenna With Harmonic Suppression Using T-Shape DGS And Spurline
title_full	Design Of High Gain Antenna With Harmonic Suppression Using T-Shape DGS And Spurline
title_fullStr	Design Of High Gain Antenna With Harmonic Suppression Using T-Shape DGS And Spurline
title_full_unstemmed	Design Of High Gain Antenna With Harmonic Suppression Using T-Shape DGS And Spurline
title_sort	design of high gain antenna with harmonic suppression using t-shape dgs and spurline
granting_institution	Universiti Teknikal Malaysia Melaka
granting_department	Faculty Of Electronic And Computer Engineering
publishDate	2016
url	http://eprints.utem.edu.my/id/eprint/18604/1/Design%20Of%20High%20Gain%20Antenna%20With%20Harmonic%20Suppression%20Using%20T-Shape%20DGS%20And%20Spurline.pdf http://eprints.utem.edu.my/id/eprint/18604/2/Design%20Of%20High%20Gain%20Antenna%20With%20Harmonic%20Suppression%20Using%20T-Shape%20DGS%20And%20Spurline.pdf
_version_	1747833941105049600

Design Of High Gain Antenna With Harmonic Suppression Using T-Shape DGS And Spurline

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