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Self-harmonics suppression rectenna for wireless power harvesting

The development and analysis of several designs of self-harmonic suppression rectenna for the wireless power harvesting system are presented. The purpose of self-harmonic suppression rectenna is to eliminate the using of a harmonic filter circuit in filtering the harmonic radiation and electromagnet...

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Main Author:	Rosemizi, Abd Rahim
Format:	Thesis
Language:	English
Published:	Universiti Malaysia Perlis (UniMAP) 2015
Subjects:	Harmonic suppression Rectenna system Wireless power harvesting system Self-harmonic suppression rectenna Harmonic
Online Access:	http://dspace.unimap.edu.my:80/xmlui/handle/123456789/40572
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id	my.unimap-40572
record_format	dspace
spelling	my.unimap-405722015-11-09T06:57:39Z Self-harmonics suppression rectenna for wireless power harvesting Rosemizi, Abd Rahim Harmonic suppression Rectenna system Wireless power harvesting system Self-harmonic suppression rectenna Harmonic The development and analysis of several designs of self-harmonic suppression rectenna for the wireless power harvesting system are presented. The purpose of self-harmonic suppression rectenna is to eliminate the using of a harmonic filter circuit in filtering the harmonic radiation and electromagnetic interference (EMI) in rectenna system. The motivation for this work has been inspired by the need for compact size, low cost, high efficient rectenna system and also very important is the design structure is simple in order to reduce the error during the fabrication process. In the response to these challenging demands, four designs of self-harmonic suppression microstrip patch antenna have been simulated, fabricated, measured and analysed. Two designs can be classified in linear polarization while the other two designs exhibit the circular polarization properties. The technique to suppress the harmonics which have been introduced are the slits, slot and notch at the patch structure and an open stub at the microstrip feeding line. Also, a defected ground structure technique is applied to reduce the size of the patch antenna. The perturbation technique has been introduced to the basic rectangular and circular shapes microstrip patch antenna to produce circular polarization property. As a result, the rectangular shape becomes a nearly-square shape, while the circular shape becomes an elliptical-shape. Subsequently, a dual polarization of circularly polarized property is also proposed. To obtain high output voltage, a self-harmonic suppression microstrip patch array antenna is developed. For conversion of RF-to-DC signal, a few designs of rectifier circuits are proposed. The proposed rectifier matching networks are capable to provide a good impedance matching with a wide range of incident power. All the simulation has been done by using CST Microwave Simulator and Advanced Design System (ADS). To validate the theory and simulation, the prototypes of all designs have been fabricated and measured. For the comparison, the prototype of the conventional linear polarization (LP) rectangular and circular microstrip patch antenna are also have been designed and fabricated. The measurements show an excellent result and is in line with the simulated result. The measured of the return loss of the antennas show it resonate at the fundamental frequency, while at the harmonic frequencies, the magnitude of the return loss were suppressed successfully. In the wireless power harvesting system experimental work, it is seen that a significant improvement of the output power is achieved compared to the reference antenna without harmonic suppression. All design has been realized by using a standard PCB process. Therefore, the fabrication technique is very simple with a very cheap cost, thus it can be conveniently mass-produced. 2015-11-09T06:56:22Z 2015-11-09T06:56:22Z 2014 Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/40572 en Universiti Malaysia Perlis (UniMAP) School of Computer and Communication Engineering
institution	Universiti Malaysia Perlis
building	UniMAP Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Perlis
content_source	UniMAP Library Digital Repository
url_provider	http://dspace.unimap.edu.my/
language	English
topic	Harmonic suppression Rectenna system Wireless power harvesting system Self-harmonic suppression rectenna Harmonic
spellingShingle	Harmonic suppression Rectenna system Wireless power harvesting system Self-harmonic suppression rectenna Harmonic Rosemizi, Abd Rahim Self-harmonics suppression rectenna for wireless power harvesting
description	The development and analysis of several designs of self-harmonic suppression rectenna for the wireless power harvesting system are presented. The purpose of self-harmonic suppression rectenna is to eliminate the using of a harmonic filter circuit in filtering the harmonic radiation and electromagnetic interference (EMI) in rectenna system. The motivation for this work has been inspired by the need for compact size, low cost, high efficient rectenna system and also very important is the design structure is simple in order to reduce the error during the fabrication process. In the response to these challenging demands, four designs of self-harmonic suppression microstrip patch antenna have been simulated, fabricated, measured and analysed. Two designs can be classified in linear polarization while the other two designs exhibit the circular polarization properties. The technique to suppress the harmonics which have been introduced are the slits, slot and notch at the patch structure and an open stub at the microstrip feeding line. Also, a defected ground structure technique is applied to reduce the size of the patch antenna. The perturbation technique has been introduced to the basic rectangular and circular shapes microstrip patch antenna to produce circular polarization property. As a result, the rectangular shape becomes a nearly-square shape, while the circular shape becomes an elliptical-shape. Subsequently, a dual polarization of circularly polarized property is also proposed. To obtain high output voltage, a self-harmonic suppression microstrip patch array antenna is developed. For conversion of RF-to-DC signal, a few designs of rectifier circuits are proposed. The proposed rectifier matching networks are capable to provide a good impedance matching with a wide range of incident power. All the simulation has been done by using CST Microwave Simulator and Advanced Design System (ADS). To validate the theory and simulation, the prototypes of all designs have been fabricated and measured. For the comparison, the prototype of the conventional linear polarization (LP) rectangular and circular microstrip patch antenna are also have been designed and fabricated. The measurements show an excellent result and is in line with the simulated result. The measured of the return loss of the antennas show it resonate at the fundamental frequency, while at the harmonic frequencies, the magnitude of the return loss were suppressed successfully. In the wireless power harvesting system experimental work, it is seen that a significant improvement of the output power is achieved compared to the reference antenna without harmonic suppression. All design has been realized by using a standard PCB process. Therefore, the fabrication technique is very simple with a very cheap cost, thus it can be conveniently mass-produced.
format	Thesis
author	Rosemizi, Abd Rahim
author_facet	Rosemizi, Abd Rahim
author_sort	Rosemizi, Abd Rahim
title	Self-harmonics suppression rectenna for wireless power harvesting
title_short	Self-harmonics suppression rectenna for wireless power harvesting
title_full	Self-harmonics suppression rectenna for wireless power harvesting
title_fullStr	Self-harmonics suppression rectenna for wireless power harvesting
title_full_unstemmed	Self-harmonics suppression rectenna for wireless power harvesting
title_sort	self-harmonics suppression rectenna for wireless power harvesting
publisher	Universiti Malaysia Perlis (UniMAP)
publishDate	2015
url	http://dspace.unimap.edu.my:80/xmlui/handle/123456789/40572
_version_	1643799414277406720
score	13.222552

Self-harmonics suppression rectenna for wireless power harvesting

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