Comparison of Equivalent Dipole Moments Reconstructed Using Least Squares and SVD-Defined Eigenmode Methods
Journal
Final Program - 2026 Asia-Pacific International Symposium and Exhibition on Electromagnetic Compatibility, APEMC 2026
Start Page
1
End Page
4
ISBN
[9798331566593]
Date Issued
2026-05-04
Author(s)
Abstract
This paper presents a complete flow for complex noise source modeling based on the equivalent dipole moment theory to analysis RF-desense issues. The near-field phase information is measured using the VNA received mode, and the equivalent dipole moments are reconstructed through a regularized least-squares method. The proposed approach is validated using a DDR chip. Results demonstrate that including phase information enables accurate identification of the interference (CLK) and victim sources (RF), while magnitudeonly reconstruction method often converges to a local minimum, leading to location errors.
Event(s)
2026 Asia-Pacific International Symposium and Exhibition on Electromagnetic Compatibility, APEMC 2026
Subjects
Electromagnetic interference (EMI)
Equivalent dipole moments
Least squares method
Near-field scanning
Pattern search algorithm
Received mode
Singular value decomposition (SVD)
Publisher
IEEE
Type
conference paper