RF harvester for DC supply

This project focuses on the design of 2GHz rectenna for harvesting RF signal. This 2GHz signal is from a 3G signal and ISM band that is easy to be found in town areas. The rectenna comprises an array of rectangular patch of microstrip antenna, power combiner and voltage multiplier. Patch antenna wa...

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Main Author:	Ilham Shafini, Ahmad Mahyudin
Format:	Thesis
Language:	English
Subjects:	Rectenna RF signal Harvesting Radio Frequency (RF) Power supply Antenna
Online Access:	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/59421/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/59421/2/Full%20text.pdf
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id	my-unimap-59421
record_format	uketd_dc
spelling	my-unimap-594212019-04-10T03:56:51Z RF harvester for DC supply Ilham Shafini, Ahmad Mahyudin Prof. Dr. Syed Idris Syed Hassan This project focuses on the design of 2GHz rectenna for harvesting RF signal. This 2GHz signal is from a 3G signal and ISM band that is easy to be found in town areas. The rectenna comprises an array of rectangular patch of microstrip antenna, power combiner and voltage multiplier. Patch antenna was designed using a CST Microwave Studio 2012. The following parameters: return loss, bandwidth, radiation pattern, voltage standing wave ratio (VSWR), input impedance and antenna polarization were obtained from simulation. The power combiner circuit was designed using a Wilkinson power splitter. A power combiner for six stages and 64 inputs was proposed, designed and evaluated. The performance was done by simulation using ADS 2009 software. Two multipliers, three and six stages voltage multiplier were designed and evaluated using the same software. After designing and simulating, the following results were obtained. The designed antenna was simulated and it obtained 44.4dB of return loss with 400MHz of bandwidth, 1.01:1 of VSWR, 50Ω input impedance and 6.202dBi of directivity for the radiation pattern. A full analytical study of power combiner was done and simulation results are presented. The design of the power combiner obtained a 9dB output gain for three stages power combiner. A six-stage voltage multiplier has been simulated and it had a 3.901V of output voltage for the input voltage of 1V. The power produced by the harvester is 20mA. However, there were some harmonics shown by the ripples on the graph. The ripples can be reduced by adding the capacitor of a higher value. In conclusion, the proposed designs have been successfully designed and the simulated results have been obtained within the specifications. Universiti Malaysia Perlis (UniMAP) 2014 Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/59421 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/59421/1/Page%201-24.pdf 7ebcd0d65c069c1fda66eb67969d3585 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/59421/2/Full%20text.pdf 17e546d95870ac7349cb504da426b858 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/59421/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 Rectenna RF signal Harvesting Radio Frequency (RF) Power supply Antenna School of Electrical Systems Engineering
institution	Universiti Malaysia Perlis
collection	UniMAP Institutional Repository
language	English
advisor	Prof. Dr. Syed Idris Syed Hassan
topic	Rectenna RF signal Harvesting Radio Frequency (RF) Power supply Antenna
spellingShingle	Rectenna RF signal Harvesting Radio Frequency (RF) Power supply Antenna Ilham Shafini, Ahmad Mahyudin RF harvester for DC supply
description	This project focuses on the design of 2GHz rectenna for harvesting RF signal. This 2GHz signal is from a 3G signal and ISM band that is easy to be found in town areas. The rectenna comprises an array of rectangular patch of microstrip antenna, power combiner and voltage multiplier. Patch antenna was designed using a CST Microwave Studio 2012. The following parameters: return loss, bandwidth, radiation pattern, voltage standing wave ratio (VSWR), input impedance and antenna polarization were obtained from simulation. The power combiner circuit was designed using a Wilkinson power splitter. A power combiner for six stages and 64 inputs was proposed, designed and evaluated. The performance was done by simulation using ADS 2009 software. Two multipliers, three and six stages voltage multiplier were designed and evaluated using the same software. After designing and simulating, the following results were obtained. The designed antenna was simulated and it obtained 44.4dB of return loss with 400MHz of bandwidth, 1.01:1 of VSWR, 50Ω input impedance and 6.202dBi of directivity for the radiation pattern. A full analytical study of power combiner was done and simulation results are presented. The design of the power combiner obtained a 9dB output gain for three stages power combiner. A six-stage voltage multiplier has been simulated and it had a 3.901V of output voltage for the input voltage of 1V. The power produced by the harvester is 20mA. However, there were some harmonics shown by the ripples on the graph. The ripples can be reduced by adding the capacitor of a higher value. In conclusion, the proposed designs have been successfully designed and the simulated results have been obtained within the specifications.
format	Thesis
author	Ilham Shafini, Ahmad Mahyudin
author_facet	Ilham Shafini, Ahmad Mahyudin
author_sort	Ilham Shafini, Ahmad Mahyudin
title	RF harvester for DC supply
title_short	RF harvester for DC supply
title_full	RF harvester for DC supply
title_fullStr	RF harvester for DC supply
title_full_unstemmed	RF harvester for DC supply
title_sort	rf harvester for dc supply
granting_institution	Universiti Malaysia Perlis (UniMAP)
granting_department	School of Electrical Systems Engineering
url	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/59421/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/59421/2/Full%20text.pdf
_version_	1747836835676028928

RF harvester for DC supply

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