Characterisation of printed circuit boards including magnetic film using finite element analysis

Author

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

Author_Institution

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

fYear

1999

fDate

1999

Firstpage

13

Lastpage

16

Abstract

A method to evaluate the characteristics of printed circuit boards containing magnetic films is proposed. By means of electromagnetic field distribution computed from a combined finite element method and strategic dual image method, the equivalent circuit parameters R, L, C are determined. The employed methodology which accounts for eddy currents, displacement currents and hysteresis is detailed in the case of 2D axisymmetric problems. Then two simple PCB configurations are investigated. The results clearly show that the NiZn ferrite composite material included in one PCB reduces EMI efficiently

Keywords

composite materials; eddy currents; electromagnetic compatibility; electromagnetic interference; equivalent circuits; ferrites; finite element analysis; magnetic hysteresis; magnetic thin films; nickel compounds; printed circuits; zinc compounds; 2D axisymmetric problems; EMC problems; EMI reduction; Ni-Zn-Fe₂O₄; NiZn ferrite composite material; PCB configurations; displacement currents; eddy currents; equivalent circuit parameters; finite element analysis; hysteresis; magnetic film; printed circuit boards; strategic dual image method; Composite materials; Distributed computing; Eddy currents; Electromagnetic fields; Equivalent circuits; Ferrites; Finite element methods; Magnetic films; Magnetic hysteresis; Printed circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 1999 International Symposium on

Conference_Location

Tokyo

Print_ISBN

4-9980748-4-9

Type

conf

DOI

10.1109/ELMAGC.1999.801250

Filename

801250