Dielectric sheet perturbation to the metallic air-filled cavity - technique of microwave non-destructive testing / Mohd Tarmizi Ali, Mohd Khairul Mohd Salleh and Prof. Madya Md Mahfudz Md Zan
Dielectric sheet perturbation to the dominant TE111 mode resonant frequency of a circular cavity is studied and presented in this project. The dielectric sheet is placed at the middle of the air-filled cavity, introduces discontinuities and disturbs the configuration of electromagnetic fields in the...
| Main Authors: | , , |
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| Format: | Research Reports |
| Language: | English |
| Published: |
Institute of Research, Development and Commercialization, Universiti Teknologi MARA
2006
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| Subjects: | |
| Online Access: | https://ir.uitm.edu.my/id/eprint/7888/ |
| _version_ | 1848802851620388864 |
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| author | Ali, Mohd Tarmizi Mohd Salleh, Mohd Khairul Md Zan, Md Mahfudz |
| author_facet | Ali, Mohd Tarmizi Mohd Salleh, Mohd Khairul Md Zan, Md Mahfudz |
| author_sort | Ali, Mohd Tarmizi |
| building | UiTM Institutional Repository |
| collection | Online Access |
| description | Dielectric sheet perturbation to the dominant TE111 mode resonant frequency of a circular cavity is studied and presented in this project. The dielectric sheet is placed at the middle of the air-filled cavity, introduces discontinuities and disturbs the configuration of electromagnetic fields in the cavity. For fixed dimensions of cavity and fixed thickness of the loading dielectric, the dominant resonant frequency varies quite linearly with the permittivity of the dielectric, in the range of frequency and permittivity value studied. This quasi linear relationship is plotted using Maple software and verified using 3D simulations. Two probes are used in the simulation for wave excitation into and from the cavity. The best length of probe is found to be 3 mm, giving the closest resonant frequency to the one calculated using Maple. A total of fourteen different dielectrics of permittivity varying from 1 to 12.9 are tested one by one in the simulation. The works show very close agreement between the results from Maple and the simulation. A constant difference of 0.04 GHz is found between the resonant frequencies collected during simulation and the ones from Maple. The success of this project leads than to the possibility of using the middle loaded cavity at TE111 mode as a microwave non-destructive testing of materials. |
| first_indexed | 2025-11-14T21:29:55Z |
| format | Research Reports |
| id | uitm-7888 |
| institution | Universiti Teknologi MARA |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T21:29:55Z |
| publishDate | 2006 |
| publisher | Institute of Research, Development and Commercialization, Universiti Teknologi MARA |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uitm-78882023-11-08T02:34:22Z https://ir.uitm.edu.my/id/eprint/7888/ Dielectric sheet perturbation to the metallic air-filled cavity - technique of microwave non-destructive testing / Mohd Tarmizi Ali, Mohd Khairul Mohd Salleh and Prof. Madya Md Mahfudz Md Zan Ali, Mohd Tarmizi Mohd Salleh, Mohd Khairul Md Zan, Md Mahfudz Microwaves. Including microwave circuits Dielectric sheet perturbation to the dominant TE111 mode resonant frequency of a circular cavity is studied and presented in this project. The dielectric sheet is placed at the middle of the air-filled cavity, introduces discontinuities and disturbs the configuration of electromagnetic fields in the cavity. For fixed dimensions of cavity and fixed thickness of the loading dielectric, the dominant resonant frequency varies quite linearly with the permittivity of the dielectric, in the range of frequency and permittivity value studied. This quasi linear relationship is plotted using Maple software and verified using 3D simulations. Two probes are used in the simulation for wave excitation into and from the cavity. The best length of probe is found to be 3 mm, giving the closest resonant frequency to the one calculated using Maple. A total of fourteen different dielectrics of permittivity varying from 1 to 12.9 are tested one by one in the simulation. The works show very close agreement between the results from Maple and the simulation. A constant difference of 0.04 GHz is found between the resonant frequencies collected during simulation and the ones from Maple. The success of this project leads than to the possibility of using the middle loaded cavity at TE111 mode as a microwave non-destructive testing of materials. Institute of Research, Development and Commercialization, Universiti Teknologi MARA 2006 Research Reports NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/7888/2/7888.pdf Ali, Mohd Tarmizi and Mohd Salleh, Mohd Khairul and Md Zan, Md Mahfudz (2006) Dielectric sheet perturbation to the metallic air-filled cavity - technique of microwave non-destructive testing / Mohd Tarmizi Ali, Mohd Khairul Mohd Salleh and Prof. Madya Md Mahfudz Md Zan. (2006) [Research Reports] <http://terminalib.uitm.edu.my/7888.pdf> (Unpublished) |
| spellingShingle | Microwaves. Including microwave circuits Ali, Mohd Tarmizi Mohd Salleh, Mohd Khairul Md Zan, Md Mahfudz Dielectric sheet perturbation to the metallic air-filled cavity - technique of microwave non-destructive testing / Mohd Tarmizi Ali, Mohd Khairul Mohd Salleh and Prof. Madya Md Mahfudz Md Zan |
| title | Dielectric sheet perturbation to the metallic air-filled cavity - technique of microwave non-destructive testing / Mohd Tarmizi Ali, Mohd Khairul Mohd Salleh and Prof. Madya Md Mahfudz Md Zan |
| title_full | Dielectric sheet perturbation to the metallic air-filled cavity - technique of microwave non-destructive testing / Mohd Tarmizi Ali, Mohd Khairul Mohd Salleh and Prof. Madya Md Mahfudz Md Zan |
| title_fullStr | Dielectric sheet perturbation to the metallic air-filled cavity - technique of microwave non-destructive testing / Mohd Tarmizi Ali, Mohd Khairul Mohd Salleh and Prof. Madya Md Mahfudz Md Zan |
| title_full_unstemmed | Dielectric sheet perturbation to the metallic air-filled cavity - technique of microwave non-destructive testing / Mohd Tarmizi Ali, Mohd Khairul Mohd Salleh and Prof. Madya Md Mahfudz Md Zan |
| title_short | Dielectric sheet perturbation to the metallic air-filled cavity - technique of microwave non-destructive testing / Mohd Tarmizi Ali, Mohd Khairul Mohd Salleh and Prof. Madya Md Mahfudz Md Zan |
| title_sort | dielectric sheet perturbation to the metallic air-filled cavity - technique of microwave non-destructive testing / mohd tarmizi ali, mohd khairul mohd salleh and prof. madya md mahfudz md zan |
| topic | Microwaves. Including microwave circuits |
| url | https://ir.uitm.edu.my/id/eprint/7888/ |