A Combined Method-of-Moments and Near-Field Measurements for EMI Evaluation of Switched-Mode Power Supplies

Mirtalaei, S. M. M.; Sadeghi, S.H.H.; Moini, R.

doi:10.1109/tie.2013.2267703

Cited by 13 publications

(2 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In terms of the Rayleigh-Carson Reciprocity theorem [35], the electric current J and magnetic current M in the "forward problem" and "reverse problem" satisfy (10) where the subscript represents the location of currents and fields: "c" for cells on Huygens box and "v" for victim circuit port. The superscripts "fwd" and "rev" denote the problem types.…”

Section: B Emi Estimation Based On Reciprocity Theoremmentioning

confidence: 99%

“…In [9], the reconstruction is performed based on either electric dipoles or magnetic dipoles and the two different approaches are compared. In addition to dipole models, equivalent current sources are also utilized for EMI evaluations [10]. Research on the magnitude-only near-field scanning-based SRM has become a hotspot recently due to the dispensation from phase measurement [11]- [13].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Source Reconstruction of Electronic Circuits in Shielding Enclosures Based on Numerical Green’s Function and Application in Electromagnetic Interference Estimation

Wang

Xiao

Mao

et al. 2022

IEEE Trans. Microwave Theory Techn.

View full text Add to dashboard Cite

In this work, to characterize the radiated emission from electronic circuits in shielding enclosure, an improved electric dipole-based source reconstruction method (SRM) is developed. Moreover, by resorting to this reconstructed equivalent source, the estimation of electromagnetic interference (EMI) between different circuit modules in the enclosure can be conveniently and accurately evaluated. Different from the freespace SRM, the equivalent dipoles of the proposed SRM are directly placed over the shielding box enclosed circuit board, and the numerical Green's function (NGF) is developed to bridge the connection between the equivalent dipoles and the planar scanned magnetic near-field. With the NGF strategy, the effects of surrounding environments (including the presence of substrate, ground plane, and shielding enclosure) are inclusively considered, which makes the proposed SRM valid for any complex EM environments in theory. Since the proposed SRM also has the capability of reproducing the radiated emission inside the shielding enclosure, it is critically helpful to evaluate the EMI between different circuit modules inside the shielding enclosure. To reach this aim, the Rayleigh-Carson Reciprocity theorem is referred, in which the original EM coupling problem is decomposed into the "forward problem" and "reverse problem." A Huygens box enclosing the victim circuit module is built and the EM fields on the box are obtained using the reconstructed dipoles in both problems. Then the EMI can be calculated accordingly. Therefore, the novelty and merits of the proposed approach are threefold: 1) the physically-based equivalent dipole model considers the interactions between the radiation sources and the surrounding objects, leading to the accurate prediction of radiated emissions both outside and inside the enclosure; 2) due to the utilization of the NGF, there is no approximation involved in the solution of the dipole's radiation, thus improving Manuscript

show abstract

Section: B Emi Estimation Based On Reciprocity Theoremmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Source Reconstruction of Electronic Circuits in Shielding Enclosures Based on Numerical Green’s Function and Application in Electromagnetic Interference Estimation

Wang

Xiao

Mao

et al. 2022

IEEE Trans. Microwave Theory Techn.

View full text Add to dashboard Cite

show abstract

An EMI radiation grouping approach based on spectral cluster in near filed scanning for assessment

Huang

Gao

et al. 2021

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

With the ever-increasing operating frequency in integrated circuit, it is very essentialto assess the radiation used to help the IC designer. Based on the similarity of electromagnetic patterns obtained from the radiation of ICs and their nonlinear edge, we develop a post-processing technique to group the electromagnetic patterns. A near field scanning is performed to obtain and extract the electromagnetic pattern that is used to validate the technique. Experiment results show that it can accurately group the electromagnetic patterns by which radiation assessment can be performed.

show abstract

Near Field Coupling's Impact on Radiated EMI and Mitigation Techniques for Power Converters in Automotive Applications

Yao

Wang

Zheng³

2020

2020 IEEE Energy Conversion Congress and Exposition (ECCE)

View full text Add to dashboard Cite

A Combined Method-of-Moments and Near-Field Measurements for EMI Evaluation of Switched-Mode Power Supplies

Cited by 13 publications

References 23 publications

Source Reconstruction of Electronic Circuits in Shielding Enclosures Based on Numerical Green’s Function and Application in Electromagnetic Interference Estimation

Source Reconstruction of Electronic Circuits in Shielding Enclosures Based on Numerical Green’s Function and Application in Electromagnetic Interference Estimation

An EMI radiation grouping approach based on spectral cluster in near filed scanning for assessment

Near Field Coupling's Impact on Radiated EMI and Mitigation Techniques for Power Converters in Automotive Applications

Contact Info

Product

Resources

About