Work

Macroscopic Modeling of Mn–Zn Ferrites Based on Analytical Dynamic Material Models

Year: 2024

Type: article

Abstract: We propose a semi-analytical approach for modeling the macroscopic electromagnetic behavior of Mn–Zn ferrite cores under both dielectric and magnetic excitations. First, analytical material models are provided for calculating the effective parameters, i.e., complex resistivity and complex reluctivity by solving the electromagnetic fields in a single simplified grain and its boundary layer. The effective parameters are then used in 2-D axisymmetric finite-element (FE) models for solving the full-wave electromagnetic field equation in a cross section of a ferrite core under both dielectric and magnetic excitations. The simulated dielectric and magnetic impedances of a ferrite core are validated against measurements.

Source: IEEE Transactions on Magnetics

DOI: 10.1109/tmag.2024.3461232

Authors: Reda Elkhadrawy, Joonas Vesa, Vasiliki Tsakaloudi, Paavo Rasilo

Institutions: Tampere University, University of Tampere, Centre for Research and Technology Hellas

Language: English

Topic: Magnetic Properties and Synthesis of Ferrites

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,495

Funders: Academy of Finland, H2020 European Research Council