Study on Gtem-cell
The most important electromagnetic compatibility for electrical devices is its capability to operate safely in an electromagnetic environment and will not produce or be susceptible to interference. The measurement method for radiated emission and radiated susceptibility requires a method, which i...
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
2010
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| Online Access: | http://hdl.handle.net/10356/42103 |
| _version_ | 1811685340067397632 |
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| author | Syarfa' Zahirah Sapuan |
| author2 | Arokiaswami Alphones |
| author_facet | Arokiaswami Alphones Syarfa' Zahirah Sapuan |
| author_sort | Syarfa' Zahirah Sapuan |
| collection | NTU |
| description | The most important electromagnetic compatibility for electrical
devices is its capability to operate safely in an electromagnetic environment and will
not produce or be susceptible to interference. The measurement method for radiated
emission and radiated susceptibility requires a method, which is reliable and
reproducible. This is important to ensure the measurement fulfill the electromagnetic
compatibility (EMC) standard. The Gigahertz Transverse Electromagnetic Mode
(GTEM) may be viewed as a careful combination of TEM cell (Crawford cell) and
the anechoic chamber. Therefore, in order to fulfill the requirement of EMC, its need
to be evaluated especially its electric field distributions. The aim of this project is to
study the electric field distribution in the GTEM cell which is important for EMC
calibration measurements. The electric field must have uniformity in the working
volume of the cell. Therefore, a simple method for calculating electric fields in
GTEM cell proposed by Kama Huang [1] is used in this project. This method based
on the coordinated transformation and quasi static approximations and has provided
the simulation evident by commercial software (FD-TD method-microwave studio)
in comparison with this method. By changing the position of the septum closed to the
upper conductor of the GTEM cell will not give a solution to expand the test region.
Nevertheless, by folding at the point of 1/3 of septum height, the uniformity of the
electric field changes as long as the angle of the modification not more than 45
degree. Both of the modification generated by commercial software (microwave
studio). |
| first_indexed | 2024-10-01T04:42:58Z |
| format | Thesis |
| id | ntu-10356/42103 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:42:58Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | ntu-10356/421032023-07-04T15:22:44Z Study on Gtem-cell Syarfa' Zahirah Sapuan Arokiaswami Alphones School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Control and instrumentation::Medical electronics The most important electromagnetic compatibility for electrical devices is its capability to operate safely in an electromagnetic environment and will not produce or be susceptible to interference. The measurement method for radiated emission and radiated susceptibility requires a method, which is reliable and reproducible. This is important to ensure the measurement fulfill the electromagnetic compatibility (EMC) standard. The Gigahertz Transverse Electromagnetic Mode (GTEM) may be viewed as a careful combination of TEM cell (Crawford cell) and the anechoic chamber. Therefore, in order to fulfill the requirement of EMC, its need to be evaluated especially its electric field distributions. The aim of this project is to study the electric field distribution in the GTEM cell which is important for EMC calibration measurements. The electric field must have uniformity in the working volume of the cell. Therefore, a simple method for calculating electric fields in GTEM cell proposed by Kama Huang [1] is used in this project. This method based on the coordinated transformation and quasi static approximations and has provided the simulation evident by commercial software (FD-TD method-microwave studio) in comparison with this method. By changing the position of the septum closed to the upper conductor of the GTEM cell will not give a solution to expand the test region. Nevertheless, by folding at the point of 1/3 of septum height, the uniformity of the electric field changes as long as the angle of the modification not more than 45 degree. Both of the modification generated by commercial software (microwave studio). Master of Science (Communications Engineering) 2010-09-23T06:37:38Z 2010-09-23T06:37:38Z 2008 2008 Thesis http://hdl.handle.net/10356/42103 en 96 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Control and instrumentation::Medical electronics Syarfa' Zahirah Sapuan Study on Gtem-cell |
| title | Study on Gtem-cell |
| title_full | Study on Gtem-cell |
| title_fullStr | Study on Gtem-cell |
| title_full_unstemmed | Study on Gtem-cell |
| title_short | Study on Gtem-cell |
| title_sort | study on gtem cell |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Control and instrumentation::Medical electronics |
| url | http://hdl.handle.net/10356/42103 |
| work_keys_str_mv | AT syarfazahirahsapuan studyongtemcell |