A methodology to simulate the electromagnetic behavior of printed circuit boards including magnetic materials

Author

Cortial-Goutaudier, Fabienne ; Hoshino, Shigeki ; Tohya, Hirokazu ; Saito, Yoshifuru

Author_Institution

C&C Res. Labs., NEC Eur. Ltd., Sankt Augustin, Germany

fYear

1999

fDate

1999

Firstpage

123

Lastpage

127

Abstract

This paper presents a methodology to simulate the high frequency electromagnetic behavior of Printed Circuit Boards (PCBs) including magnetic materials. The modeling accounts for displacement and eddy currents. The magnetic hysteresis is efficiently represented by a complex permeability model. The problem is considered as unbounded, bi-dimensional, axisymmetric. A combined Finite Element (FE) and Strategic Dual Image (SDI) method is used to compute the electric and magnetic fields. A comparative study of two PCBs examples, one including a MnZn ferrite film, is investigated and some features as the magnetic flux distributions and the derived equivalent electric circuits are discussed

Keywords

circuit simulation; eddy currents; electromagnetic fields; equivalent circuits; finite element analysis; iterative methods; magnetic flux; magnetic hysteresis; magnetic permeability; magnetic thin films; printed circuits; FEM; MnZn ferrite film; MnZnFe₂O₄; PCBs; combined FE/SDI method; complex permeability model; displacement currents; eddy currents; electric fields; electromagnetic behavior simulation; equivalent electric circuits; finite element method; high frequency EM behavior; magnetic fields; magnetic flux distributions; magnetic hysteresis representation; magnetic materials; printed circuit boards; strategic dual image method; Circuit simulation; Eddy currents; Ferrite films; Finite element methods; Frequency; Magnetic fields; Magnetic hysteresis; Magnetic materials; Permeability; Printed circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Mixed-Signal Design, 1999. SSMSD '99. 1999 Southwest Symposium on

Conference_Location

Tucson, AZ

Print_ISBN

0-7803-5510-5

Type

conf

DOI

10.1109/SSMSD.1999.768604

Filename

768604