An Orthogonal-direction Near-field Magnetic Probe Based on Folded-loop Structure
碩士 === 國立臺灣大學 === 電信工程學研究所 === 99 === Near-field magnetic probes are often used to measure the magnetic fields above a printed circuit board in order to identify the sources and coupling paths of an electromagnetic interference (EMI) or radio frequency interference (RFI) problem. This thesis intro...
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| Format: | Others |
| Language: | zh-TW |
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2011
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| Online Access: | http://ndltd.ncl.edu.tw/handle/39677181935785229714 |
| Summary: | 碩士 === 國立臺灣大學 === 電信工程學研究所 === 99 === Near-field magnetic probes are often used to measure the magnetic fields above a printed circuit board in order to identify the sources and coupling paths of an electromagnetic interference (EMI) or radio frequency interference (RFI) problem. This thesis introduced a magnetic probe structure using two folding loop to measurement magnetic fields in two orthogonal direction. This orthogonal-direction magnetic probe using differential-mode signal and common-mode signal to distinguish orthogonal magnetic fields, has better sensitivity and E-field coupling suppression than traditional orthogonal magnetic probe. The effects of this probe are analyzed using full-wave simulations and measurements.
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