High-Frequency Characterization and Parametrized Modeling of DC-Biased Surface- Mount Ferrite Beads for EMI Suppression Applications
| Autor: | Hrvoje Stimac, Renaud Gillon, Adrijan Baric, Josip Bacmaga |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Ferrite bead Electromagnetic interference (EMI) equivalent circuit model impedance characterization inductive components noise filtering 020206 networking & telecommunications Biasing 02 engineering and technology Condensed Matter Physics Inductor Atomic and Molecular Physics and Optics Electromagnetic interference Computational physics EMI 0202 electrical engineering electronic engineering information engineering Scattering parameters Equivalent circuit Electrical and Electronic Engineering Electrical impedance |
| Popis: | Circuit models of ferrite beads used for electromagnetic (EM) noise filtering are important for prediction and effective reduction of EM noise on power or signal lines. A methodology for impedance characterization and modeling of surface-mount ferrite beads is proposed in this article. The presented methodology combines series and shunt characterization methods to extract the equivalent circuit model of ferrite beads. The extracted models consist of frequency-independent elements and they are valid up to 1 GHz, to cover the bandwidth required by the EM compatibility standards for measurements of EM emissions. The values of the lumped elements of the extracted model are optimized to fit the measured impedance characteristics for each ferrite bead at bias current levels up to 5 A. Finally, the values of the lumped elements are parametrized with respect to the bias current from 0 to 5 A and the normalized error of the model compared to the measurements is calculated and found to be less than 10 $\boldsymbol{^{\mathrm{-3}}}$ . |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|