Magnetodielectric Material for VHF Antenna Devices Tunable by a Low DC Magnetic Field - Université de Bretagne Occidentale Access content directly
Journal Articles IEEE Transactions on Magnetics Year : 2023

Magnetodielectric Material for VHF Antenna Devices Tunable by a Low DC Magnetic Field

Abstract

This study presents the performance of a magneto-dielectric material (MDM) specially developed to enable the tunability of antenna devices operating in the VHF band. A current flowing through the sample, which creates a DC magnetic field inside the sample with the same symmetry as the magnetic domains, controls the magnetic susceptibility variation of the MDM. By changing the magnetization state of the MDM with a low DC magnetic field of 740 A.m-1, a tunability of 40% can be observed. The MDM tunability at VHF frequencies is also highlighted by microwave measurements for different magnetization states.
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Dates and versions

hal-04152085 , version 1 (05-07-2023)

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Alexis Chevalier, Hanadi Breiss, Antoine Hoez, Jean-Luc Mattei. Magnetodielectric Material for VHF Antenna Devices Tunable by a Low DC Magnetic Field. IEEE Transactions on Magnetics, inPress, pp.1-5. ⟨10.1109/TMAG.2023.3281491⟩. ⟨hal-04152085⟩
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