Ground effect analysis of open field test site for EMI
碩士 === 大葉大學 === 電機工程研究所 === 90 === The thesis is dedicated to the analysis of electromagnetic effects caused by the metal grounding of open area test site (OATS) for EMI measurement. Due to the strong relationship between the normal site attenuation (NSA) performance versus electromagneti...
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ndltd-TW-090DYU004420642015-10-13T17:39:42Z http://ndltd.ncl.edu.tw/handle/32450062145936792438 Ground effect analysis of open field test site for EMI 電磁干擾開放測試場之接地平面分析 溫仕緯 碩士 大葉大學 電機工程研究所 90 The thesis is dedicated to the analysis of electromagnetic effects caused by the metal grounding of open area test site (OATS) for EMI measurement. Due to the strong relationship between the normal site attenuation (NSA) performance versus electromagnetic reflection and diffraction effects introduced by the dimension and discontinuous edges of metal ground, therefore the thesis is focused on the investigation of ground plane configuration effect and the comparison of numerical analysis and experimental measurements. To analyze the influences of ground plane dimension and its edge diffraction on the NSA, and therefore the compensation techniques (such as extending metal plane at some locations, adding metal meshes on edges with slant angles), we utilized the numerical methods FDTD and GTD to establish the diffraction models for 30- 200 MHz and 200-1000 MHz frequency ranges respectively. With the investigation of numerical model for OATS with finite ground plane and verification by the measured data, we can further improve the NSA performance to meet the stringent requirement of international standards and regulations for the EMI open area test sites. 林漢年 2002 學位論文 ; thesis 111 zh-TW |
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碩士 === 大葉大學 === 電機工程研究所 === 90 === The thesis is dedicated to the analysis of electromagnetic effects caused by the metal grounding of open area test site (OATS) for EMI measurement. Due to the strong relationship between the normal site attenuation (NSA) performance versus electromagnetic reflection and diffraction effects introduced by the dimension and discontinuous edges of metal ground, therefore the thesis is focused on the investigation of ground plane configuration effect and the comparison of numerical analysis and experimental measurements. To analyze the influences of ground plane dimension and its edge diffraction on the NSA, and therefore the compensation techniques (such as extending metal plane at some locations, adding metal meshes on edges with slant angles), we utilized the numerical methods FDTD and GTD to establish the diffraction models for 30- 200 MHz and 200-1000 MHz frequency ranges respectively. With the investigation of numerical model for OATS with finite ground plane and verification by the measured data, we can further improve the NSA performance to meet the stringent requirement of international standards and regulations for the EMI open area test sites.
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林漢年 |
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林漢年 溫仕緯 |
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溫仕緯 |
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溫仕緯 Ground effect analysis of open field test site for EMI |
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溫仕緯 |
title |
Ground effect analysis of open field test site for EMI |
title_short |
Ground effect analysis of open field test site for EMI |
title_full |
Ground effect analysis of open field test site for EMI |
title_fullStr |
Ground effect analysis of open field test site for EMI |
title_full_unstemmed |
Ground effect analysis of open field test site for EMI |
title_sort |
ground effect analysis of open field test site for emi |
publishDate |
2002 |
url |
http://ndltd.ncl.edu.tw/handle/32450062145936792438 |
work_keys_str_mv |
AT wēnshìwěi groundeffectanalysisofopenfieldtestsiteforemi AT wēnshìwěi diàncígànrǎokāifàngcèshìchǎngzhījiēdepíngmiànfēnxī |
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1717783203106783232 |