Impact of the Microwave Coupling Structure on an Electron-Cyclotron Resonance Thruster

نویسندگان

چکیده

The electron-cyclotron resonance thruster with magnetic nozzle relies on two successive energy transfer processes: first from electromagnetic to electron thermal energy, facilitated by a coupling structure; and second ion directed kinetic diverging field. nature geometry of the structure are crucial process. This paper presents an experimental study performance nozzle, equipped either waveguide-coupling or coaxial-coupling structure. necessity thrust balance measurements perform such comparison is demonstrated. low efficiency microwave power plasma achieved waveguide found result in very large uncertainty respect deposited power. A method significantly reduce this proposed implemented. Thrust indicate for coaxial-coupled waveguide-coupled thruster, both operated at 25 W mass flow rate xenon. Electrostatic probe reveal that difference can be explained energy. results emphasize critical role structure, which may have been previously overlooked.

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ژورنال

عنوان ژورنال: Journal of Propulsion and Power

سال: 2021

ISSN: ['1533-3876', '0748-4658']

DOI: https://doi.org/10.2514/1.b38156