An Orthogonal-direction Near-field Magnetic Probe Based on Folded-loop Structure
Date Issued
2011
Date
2011
Author(s)
Yang, Bo-kai
Abstract
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.
Subjects
EMI
RFI
near-field measurement
magnetic probe
orthogonal fields
magnetic field coupling
electric field coupling
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-100-R98942019-1.pdf
Size
23.32 KB
Format
Adobe PDF
Checksum
(MD5):2b9dc1170e8189a788f8ff6e6f1eeb07