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A Magnetostatic Model for Square Spiral Inductors Incorporating a Magnetic Layer

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3 Author(s)
Pinhas, S. ; Sch. of Eng., Kinneret Acad. Coll., Haifa ; Hwang, Sungwoo ; Jae-Sung Rieh

Embedding magnetic layers in inductors is an attractive option for increasing inductance density, which is a critical issue for radio-frequency applications. In this letter, we develop a magnetostatic model for square spiral inductors incorporating a magnetic layer. In our model, we assume that the permeability of the magnetic layer is isotropic and infinite. The model provides a fast and effective numerical calculation of the inductance of inductors incorporating a magnetic layer. We show the derivation of the model and provide calculation results for various inductor structures.

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Magnetics, IEEE Transactions on  (Volume:44 ,  Issue: 8 )