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A hybrid finite-element method for the modeling of microcoils

Authors :: J.-P. Gilles
Claude Marchand
Y. Le Bihan
Mohamed Bensetti
E.D. Gergam
C.-M. Tassetti
Gaelle Lissorgues
Supélec Sciences des Systèmes (E3S)
Ecole Supérieure d'Electricité - SUPELEC (FRANCE)
Laboratoire de génie électrique de Paris (LGEP)
Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
École Supérieure d'Ingénieurs en Électronique et Électrotechnique
Institut d'électronique fondamentale (IEF)
Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)
Source :: IEEE Transactions on Magnetics, IEEE Transactions on Magnetics, Institute of Electrical and Electronics Engineers, 2005, 41 (5), pp.1868-1871. ⟨10.1109/TMAG.2005.846284⟩, IEEE Transactions on Magnetics, 2005, 41 (5), pp.1868-1871. ⟨10.1109/TMAG.2005.846284⟩
Publication Year :: 2005
Publisher :: Institute of Electrical and Electronics Engineers (IEEE), 2005.
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.