A hybrid finite-element method for the modeling of microcoils

Author

Bensetti, M. ; Bihan, Y. Le ; Marchand, C. ; Tassetti, C.-M. ; Lissorgues, G. ; Gergam, E. Dufour ; Gilles, J.-P.

Author_Institution

Lab. de Genie Electrique de Paris, Ecole superieure d´´Electricite (Supelec), Gif sur Yvette, France

Volume

41

Issue

5

fYear

2005

fDate

5/1/2005 12:00:00 AM

Firstpage

1868

Lastpage

1871

Abstract

This paper presents an original method for the modeling of microcoils at high frequency dedicated for different applications: radio frequency, nuclear magnetic resonance, nondestructive testing, etc. The aim of the modeling is to determine the elements of an electric equivalent circuit. A magneto-dynamic three-dimensional (3-D) finite-element formulation is used to calculate the resistance and the inductance of the microcoil at high frequency. Using the previous results, an electrostatic 3-D finite-element field analysis is then used to determine the capacitance. The method was tested by using an example of nuclear magnetic resonance microcoil. Numerical results obtained by the proposed method are compared with measurements and analytical results.

Keywords

coils; electrostatics; equivalent circuits; finite element analysis; nuclear magnetic resonance; electric equivalent circuit; electrostatics; hybrid finite-element method; microcoil modeling; nuclear magnetic resonance; Electric resistance; Electrostatics; Equivalent circuits; Finite element methods; Inductance; Magnetic analysis; Magnetic resonance; Nondestructive testing; Nuclear magnetic resonance; Radio frequency; Electrostatic; finite-element method (FEM); magneto-dynamic; microcoils; nuclear magnetic resonance (NMR);

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.846284

Filename

1430986