Ferrite-based phase shifters design: The modeling problem of non-saturated anisotropic ferrites

Gouellec, Armel Le; Vérissimo, Grégory; Quéffélec, Patrick; Laur, Vincent; Albert, Isabelle; Girard, T.

doi:10.1109/mwsym.2013.6697575

Cited by 5 publications

References 12 publications

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Modeling non-saturated ferrite-based devices: Application to twin toroid ferrite phase shifters

Gouellec

Vérissimo

Laur

et al. 2016

Journal of Applied Physics

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This article describes a new set of tools developed to improve the conception and modeling of non-saturated ferrite-based devices such as twin toroid phase shifters. These new simulation tools benefit from a generalized permeability tensor model able to describe the permeability tensor of a ferrite sample whatever its magnetization state. This model is coupled to a homemade 3D multi-scale magnetostatic analysis program, which describes the evolution of the magnetization through the definition of a hysteresis loop in every mesh cell. These computed spectra are then integrated into 3D electromagnetic simulation software that retains the spatial variations of the ferrite properties by using freshly developed macro programming functions. This new approach allows the designers to accurately model complex ferrite devices such as twin toroid phase shifters. In particular, we demonstrated a good agreement between simulated and measured phase shifts as a function of applied current values with a predicted maximum phase shift of 0.96 times the measured value.

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Modeling non-saturated ferrite-based devices: Application to twin toroid ferrite phase shifters

Gouellec

Vérissimo

Laur

et al. 2016

Journal of Applied Physics

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Modeling antennas printed on magnetized substrate: Application to the design of a tunable PIFA antenna

Nino¹,

Quéffélec²,

Chevalier³

et al. 2015

2015 European Microwave Conference (EuMC)

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

Ney¹,

Ijjeh²

2015

2015 International Conference on Electromagnetics in Advanced Applications (ICEAA)

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International audienceFerrite 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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Ferrite-based phase shifters design: The modeling problem of non-saturated anisotropic ferrites

Cited by 5 publications

References 12 publications

Modeling non-saturated ferrite-based devices: Application to twin toroid ferrite phase shifters

Modeling non-saturated ferrite-based devices: Application to twin toroid ferrite phase shifters

Modeling antennas printed on magnetized substrate: Application to the design of a tunable PIFA antenna

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

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