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Lower Hybrid Range Cold Magnetized Plasma Modelling in ANSYS HFSS

Abstract : The coupling between cold magnetized plasmas with Lower Hybrid Resonance Frequency antennas is generally addressed using specifically developed codes. These antenna coupling codes often approximate the plasma to a surface impedance described by a 1D half infinite models and antennas either with simplified 2D dimensions or from 3D CAD models conversion. Such approaches add an additional steps of model approximation/conversion which is not convenient to rapidly assess impact of geometry changes on coupling performances. The coupling calculation of Lower Hybrid Resonance Frequency antennas are performed using ANSYS HFSS and successfully benchmarked with the fast coupling codes ALOHA on inhomogeneous cold magnetized plasmas. Good agreements are obtained when the boundary conditions in the full-wave modelling are properly handled. Practical advices and limitations are given in order to define correctly these boundary conditions and insure correct results.
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Submitted on : Sunday, April 7, 2019 - 4:29:37 PM
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Julien Hillairet, Riccardo Ragona, Laurent Colas, Walid Helou, Frédéric Bocquet. Lower Hybrid Range Cold Magnetized Plasma Modelling in ANSYS HFSS. Fusion Engineering and Design, Elsevier, 2019, ⟨10.1016/j.fusengdes.2019.02.108⟩. ⟨cea-01889312v2⟩



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