The invention relates to a current homogenizing
magnetic field structure of a multistage cusped
magnetic field plasma thruster, and aims to solve the problems that the
magnetic field intensity of a
discharge channel wall of an existing multistage cusped magnetic field
plasma thruster is too high, a magnetic induction line emitted by the tip of a
magnetic mirror is too close to the axis of a
discharge channel, consequently,
electron distribution is non-uniform,
ionization rate is low, and a magnetic interface has a large angle. Two fixing end plates are mounted on the upper surface and the lower surface of a shell respectively, a
ceramic sleeve is vertically mounted in the shell, an
anode and a ventilator are mounted at the bottom end of the inner wall of the
ceramic sleeve and extend out of the bottom end of the
ceramic sleeve, two magnetic rings are arranged on the upper end face and the lower end face between the inner side wall of the shell and the outer side wall of the ceramic sleeve respectively, one magnetic ring is arranged in a permanent
magnet ring to form a component, a plurality of components are horizontally mounted in an inner cavity between the ceramic sleeve and the shell, and a plurality of magnetic field guide rings are arranged on the inner side wall of the shell. The current homogenizing magnetic field structure is used for the field of
aerospace.