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Communication Dans Un Congrès Année : 2015

Time-domain model of complex media: Application to non-saturated and non-homogeneously magnetized ferrite medium

Michel Ney
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Résumé

Ferrite material plays an important role in modern microwave components such as isolator, circulator and phase shifter. Also, they provide some agility to externally tune devices by adjusting a DC magnetic field which modifies the constitutive parameters. However, ferrite medium is complex and elaborated modelling procedures are required to carry out full-wave electromagnetic simulation. A general TLM (Transmission-Line Matrix) procedure is proposed to model those media in time-domain. It accounts for effects such as non-homogeneous DC magnetization and arbitrary magnetization state by inserting a physical causal model and coupling static simulation to accurately account for the demagnetization field which depends also on the ferrite sample geometry.
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Dates et versions

hal-01369924 , version 1 (21-09-2016)

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Michel Ney, Abdelrahman Ijjeh. Time-domain model of complex media: Application to non-saturated and non-homogeneously magnetized ferrite medium. ICEAA 2016: International conference on electromagnetics in advanced applications, Sep 2015, Torino, Italy. pp.268 - 271, ⟨10.1109/ICEAA.2015.7297117⟩. ⟨hal-01369924⟩
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