Estimating the near field coupling from SMPS circuits to a nearby antenna using dipole moments

In this paper, the near field coupling from SMPS circuits to a nearby antenna is studied using dipole moments [1]. The dipole moments are extracted from scanned H fields on a plane above SMPS circuits, and then imported into an HFSS model to do full wave simulation. The simulated coupling matches we...

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Bibliographic Details
Main Authors: Chunyu Wu, Yansheng Wang, Liang Li, Jingnan Pan, Jun Fan, Lijuan Qu, Eriksson, Joakim
Format: Conference Proceeding
Language:English
Subjects:
Decision support systems
dipole moments
near field coupling
near field scan
radio frequency interference
reciprocity
switched mode power supply
Online Access:Request full text
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Summary:In this paper, the near field coupling from SMPS circuits to a nearby antenna is studied using dipole moments [1]. The dipole moments are extracted from scanned H fields on a plane above SMPS circuits, and then imported into an HFSS model to do full wave simulation. The simulated coupling matches well with direct measurement. Methods to resolve magnitude and phase of near fields of SMPS noise source are introduced. Error analysis is included in the end as well.
ISSN:2158-1118
DOI:10.1109/ISEMC.2016.7571672