Design and development of microwave absorber using waste materials
Sugarcane bagasse is a potential agricultural waste to design the pyramidal microwave absorber to be used in radio frequency (RF) anechoic chamber for testing application. An RF anechoic chamber is a shielded room covered with absorbers to eliminate unwanted reflection signal. In this work, sugarca...
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my-unimap-780252023-03-10T03:02:39Z Design and development of microwave absorber using waste materials Muzammil, Jusoh, Dr. Sugarcane bagasse is a potential agricultural waste to design the pyramidal microwave absorber to be used in radio frequency (RF) anechoic chamber for testing application. An RF anechoic chamber is a shielded room covered with absorbers to eliminate unwanted reflection signal. In this work, sugarcane bagasse from the sugar industry and rubber tire dust from tire wear have been used. Both of the wastes have lossy carbon contents naturally, which has made them suitable as the raw materials for the fabrication of the low cost microwave absorbers. The dielectric constant of the sugarcane bagasse had been measured using the Dielectric Probe Technique and Software of Agilent 85071E using Transmission Line Technique. Microwave absorbers are made of two main components, a filler material that does the absorption, and a material matrix to hold the filler. In dielectric materials, the most crucial properties that enable them to be applicable as microwave absorbers are the dielectric constant and the loss factor which is the dissipation of energy in the material. Generally, dielectric material absorbers are fabricated by the combination of fillers in a polymer matrix. In this work, the fillers are the agricultural waste which is sugarcane bagasse (SCB) and rubber tire dust (RTD) from tire wear whereas the polymer matrix is unsaturated Polyester Resin RP9509 (UPR) which is rigid, flexible and electromagnetically transparent polymer. In this work, the sugarcane bagasse also has been mixed with rubber tire dust (RTD) to investigate their performance. The microwave absorber using sugarcane bagasse had been designed and simulated in the CST Microwave studio software. The measurement of waveguide technique has been used to check the reflectivity performance. The microwave absorber has been investigated in microwave frequency range between 1 GHz to 18 GHz. The results show that the sugarcane bagasse has the potential used as the base material in developing the microwave absorber and can operate in that range of frequency successfully. The adding of the filler which is rubber tire dust increased the performance of the microwave absorber. These absorbers were designed on the basis of the wave attenuation and depth of penetration data and their EMC performance was evaluated in terms of bi-static reflectivity performance. The performance of the absorbers was found to be below -10 dB. The different concentration of the filler were being measured and the reflectivity was found to be better then -20 dB when the increasing value of rubber tire dust were added. Universiti Malaysia Perlis (UniMAP) Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78025 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78025/4/license.txt 8a4605be74aa9ea9d79846c1fba20a33 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78025/3/Liyana.pdf f53818a991d02f19cd998c15c36e0363 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78025/5/Page%201-24.pdf 36fe4ec23beb7c001b882fe0c9f5c087 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78025/6/Full%20text.pdf cc3378d7a152faa8bc5cf242ffaac93f Universiti Malaysia Perlis (UniMAP) Electromagnetic compatibility Electromagnetic interference Microwave detectors Absorption Agricultural wastes Sugarcane bagasse Microwave absorber School of Computer and Communication Engineering |
institution |
Universiti Malaysia Perlis |
collection |
UniMAP Institutional Repository |
language |
English |
advisor |
Muzammil, Jusoh, Dr. |
topic |
Electromagnetic compatibility Electromagnetic interference Microwave detectors Absorption Agricultural wastes Sugarcane bagasse Microwave absorber |
spellingShingle |
Electromagnetic compatibility Electromagnetic interference Microwave detectors Absorption Agricultural wastes Sugarcane bagasse Microwave absorber Design and development of microwave absorber using waste materials |
description |
Sugarcane bagasse is a potential agricultural waste to design the pyramidal microwave absorber to be used in radio frequency (RF) anechoic chamber for testing application. An RF anechoic chamber is a shielded room covered with absorbers to eliminate
unwanted reflection signal. In this work, sugarcane bagasse from the sugar industry and rubber tire dust from tire wear have been used. Both of the wastes have lossy carbon
contents naturally, which has made them suitable as the raw materials for the
fabrication of the low cost microwave absorbers. The dielectric constant of the
sugarcane bagasse had been measured using the Dielectric Probe Technique and
Software of Agilent 85071E using Transmission Line Technique. Microwave absorbers
are made of two main components, a filler material that does the absorption, and a
material matrix to hold the filler. In dielectric materials, the most crucial properties that
enable them to be applicable as microwave absorbers are the dielectric constant and the
loss factor which is the dissipation of energy in the material. Generally, dielectric
material absorbers are fabricated by the combination of fillers in a polymer matrix. In
this work, the fillers are the agricultural waste which is sugarcane bagasse (SCB) and
rubber tire dust (RTD) from tire wear whereas the polymer matrix is unsaturated
Polyester Resin RP9509 (UPR) which is rigid, flexible and electromagnetically
transparent polymer. In this work, the sugarcane bagasse also has been mixed with
rubber tire dust (RTD) to investigate their performance. The microwave absorber using
sugarcane bagasse had been designed and simulated in the CST Microwave studio
software. The measurement of waveguide technique has been used to check the
reflectivity performance. The microwave absorber has been investigated in microwave
frequency range between 1 GHz to 18 GHz. The results show that the sugarcane
bagasse has the potential used as the base material in developing the microwave
absorber and can operate in that range of frequency successfully. The adding of the
filler which is rubber tire dust increased the performance of the microwave absorber.
These absorbers were designed on the basis of the wave attenuation and depth of
penetration data and their EMC performance was evaluated in terms of bi-static
reflectivity performance. The performance of the absorbers was found to be below -10
dB. The different concentration of the filler were being measured and the reflectivity
was found to be better then -20 dB when the increasing value of rubber tire dust were
added. |
format |
Thesis |
title |
Design and development of microwave absorber using waste materials |
title_short |
Design and development of microwave absorber using waste materials |
title_full |
Design and development of microwave absorber using waste materials |
title_fullStr |
Design and development of microwave absorber using waste materials |
title_full_unstemmed |
Design and development of microwave absorber using waste materials |
title_sort |
design and development of microwave absorber using waste materials |
granting_institution |
Universiti Malaysia Perlis (UniMAP) |
granting_department |
School of Computer and Communication Engineering |
url |
http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78025/3/Liyana.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78025/5/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78025/6/Full%20text.pdf |
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