Microwave characterization of bio-composites materials based finite element and Nicholson-Ross-Weir methods
In this work, Bio-composite of oil palm empty fruit bunch fibre (OPEFB)-filler and polycaprolactone (PCL)-polymer has been prepared and characterized. The functional groups and morphology of the prepared samples were characterized by Fourier transform infrared spectroscopy (FT-IR). By using the Nich...
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| Format: | Article |
| Language: | English |
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Faculty of Science, University of Malaya
2015
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| Online Access: | http://psasir.upm.edu.my/id/eprint/51962/ http://psasir.upm.edu.my/id/eprint/51962/1/Microwave%20characterization%20of%20bio-composites%20materials%20based%20finite%20element%20and%20Nicholson-Ross-Weir%20methods.pdf |
| _version_ | 1848851976105754624 |
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| author | Ahmad, Ahmad Fahad Abbas, Zulkifly Obaiys, Suzan Jabbar Ibrahim, Nor Azowa Zainuddin, Mohamad Faiz |
| author_facet | Ahmad, Ahmad Fahad Abbas, Zulkifly Obaiys, Suzan Jabbar Ibrahim, Nor Azowa Zainuddin, Mohamad Faiz |
| author_sort | Ahmad, Ahmad Fahad |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | In this work, Bio-composite of oil palm empty fruit bunch fibre (OPEFB)-filler and polycaprolactone (PCL)-polymer has been prepared and characterized. The functional groups and morphology of the prepared samples were characterized by Fourier transform infrared spectroscopy (FT-IR). By using the Nicholson- Ross-Weir (NRW) mode, both of real and imaginary relative permittivity values of the samples were obtained simultaneously from the reflection and transmission coefficient measurements of the materials. Whereas, the attenuation with the field distribution at the waveguide filled with a sample were considered by using the Finite Element Method (FEM). The magnitude of the reflection and transmission (R/T) coefficients of the composite with different filler percentages were measured using rectangular waveguide in conjunction with a microwave vector network analyzer (VNA) in X-band range of frequency. The computations of the S-parameters were achieved by using the FEM technique along with NRW mode. Then, the obtained results were compared with the measured R/T coefficients. Relative error results nominated the FEM mode due to its highly accurate results than the other method. |
| first_indexed | 2025-11-15T10:30:44Z |
| format | Article |
| id | upm-51962 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:30:44Z |
| publishDate | 2015 |
| publisher | Faculty of Science, University of Malaya |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-519622017-05-04T04:33:36Z http://psasir.upm.edu.my/id/eprint/51962/ Microwave characterization of bio-composites materials based finite element and Nicholson-Ross-Weir methods Ahmad, Ahmad Fahad Abbas, Zulkifly Obaiys, Suzan Jabbar Ibrahim, Nor Azowa Zainuddin, Mohamad Faiz In this work, Bio-composite of oil palm empty fruit bunch fibre (OPEFB)-filler and polycaprolactone (PCL)-polymer has been prepared and characterized. The functional groups and morphology of the prepared samples were characterized by Fourier transform infrared spectroscopy (FT-IR). By using the Nicholson- Ross-Weir (NRW) mode, both of real and imaginary relative permittivity values of the samples were obtained simultaneously from the reflection and transmission coefficient measurements of the materials. Whereas, the attenuation with the field distribution at the waveguide filled with a sample were considered by using the Finite Element Method (FEM). The magnitude of the reflection and transmission (R/T) coefficients of the composite with different filler percentages were measured using rectangular waveguide in conjunction with a microwave vector network analyzer (VNA) in X-band range of frequency. The computations of the S-parameters were achieved by using the FEM technique along with NRW mode. Then, the obtained results were compared with the measured R/T coefficients. Relative error results nominated the FEM mode due to its highly accurate results than the other method. Faculty of Science, University of Malaya 2015 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/51962/1/Microwave%20characterization%20of%20bio-composites%20materials%20based%20finite%20element%20and%20Nicholson-Ross-Weir%20methods.pdf Ahmad, Ahmad Fahad and Abbas, Zulkifly and Obaiys, Suzan Jabbar and Ibrahim, Nor Azowa and Zainuddin, Mohamad Faiz (2015) Microwave characterization of bio-composites materials based finite element and Nicholson-Ross-Weir methods. Malaysian Journal of Science, 34 (2). pp. 180-184. ISSN 0126-7906 http://e-journal.um.edu.my/publish/MJS/925-1141 |
| spellingShingle | Ahmad, Ahmad Fahad Abbas, Zulkifly Obaiys, Suzan Jabbar Ibrahim, Nor Azowa Zainuddin, Mohamad Faiz Microwave characterization of bio-composites materials based finite element and Nicholson-Ross-Weir methods |
| title | Microwave characterization of bio-composites materials based finite element and Nicholson-Ross-Weir methods |
| title_full | Microwave characterization of bio-composites materials based finite element and Nicholson-Ross-Weir methods |
| title_fullStr | Microwave characterization of bio-composites materials based finite element and Nicholson-Ross-Weir methods |
| title_full_unstemmed | Microwave characterization of bio-composites materials based finite element and Nicholson-Ross-Weir methods |
| title_short | Microwave characterization of bio-composites materials based finite element and Nicholson-Ross-Weir methods |
| title_sort | microwave characterization of bio-composites materials based finite element and nicholson-ross-weir methods |
| url | http://psasir.upm.edu.my/id/eprint/51962/ http://psasir.upm.edu.my/id/eprint/51962/ http://psasir.upm.edu.my/id/eprint/51962/1/Microwave%20characterization%20of%20bio-composites%20materials%20based%20finite%20element%20and%20Nicholson-Ross-Weir%20methods.pdf |