Patent attributes
A thruster has a chamber defined within a tube. The tube has a longitudinal axis which defines an axis of thrust; an injector injects ionizable gas within the tube, at one end of the chamber. A magnetic field generator with two coils generates a magnetic field parallel to the axis; the magnetic field has two maxima along the axis; an electromagnetic field generator has a first resonant cavity between the two coils generating a microwave ionizing field at the electron cyclotron resonance in the chamber, between the two maxima of the magnetic field. The electromagnetic field generator has a second resonant cavity on the other side of the second coil. The second resonant cavity generates a ponderomotive accelerating field accelerating the ionized gas. The thruster ionizes the gas by electron cyclotron resonance, and subsequently accelerates both electrons and ions by the magnetized ponderomotive force.
