Choi, G.R.; Kim, H.; Hong, Y.; Hwang, J.; Kim, E.; Nah, W. Near-Field Coupling Effect Analysis of SMD Inductor Using 3D-EM Model. Electronics2023, 12, 2845.
Choi, G.R.; Kim, H.; Hong, Y.; Hwang, J.; Kim, E.; Nah, W. Near-Field Coupling Effect Analysis of SMD Inductor Using 3D-EM Model. Electronics 2023, 12, 2845.
Choi, G.R.; Kim, H.; Hong, Y.; Hwang, J.; Kim, E.; Nah, W. Near-Field Coupling Effect Analysis of SMD Inductor Using 3D-EM Model. Electronics2023, 12, 2845.
Choi, G.R.; Kim, H.; Hong, Y.; Hwang, J.; Kim, E.; Nah, W. Near-Field Coupling Effect Analysis of SMD Inductor Using 3D-EM Model. Electronics 2023, 12, 2845.
Abstract
In this paper, we propose a methodology for analyzing the near-field coupling between two surface mount device (SMD) inductors using a 3-dimensional electromagnetic (3D-EM) model. To develop the 3D-EM model, we first extract the effective permeability of core magnetic material in the SMD using the loss tangent in the equivalent circuit model. Then the effective permeability is used in the magnetic material for the 3D-EM modeling of SMD inductor. The validity of the proposed 3D-EM model is confirmed by comparing the impedance and S-parameters obtained from both measured and EM-simulated values for the two near-field coupled SMDs. Finally, the near-field coupling effects between the two adjacent SMD inductors are visualized in terms of magnetic coupling path visualization (CPV) using the proposed 3D-EM model, which demonstrates its usefulness for near-field coupling analysis.
Keywords
SMD inductor; loss tangent; effective permeability; Near-field coupling
Subject
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
