Magnetic pole structure for hall thruster

A magnetic pole structure for a Hall thruster, comprising:

• a plurality of wide-envelope outer magnetic pole components, a magnetic bridge, a pagoda-shaped inner magnetic pole component, a top plate, and a bottom plate, wherein the plurality of wide-envelope outer magnetic pole components are arranged on an outer edge of the Hall thruster and symmetrical about the pagoda-shaped inner magnetic pole component, and the plurality of wide-envelope outer magnetic pole components enclose a semi-open structure;
• the magnetic bridge is located between each of the plurality of wide-envelope outer magnetic pole components and the pagoda-shaped inner magnetic pole component, and is connected with a magnetic circuit formed by each of the plurality of wide-envelope outer magnetic pole components and the pagoda-shaped inner magnetic pole component;
• the bottom plate is attached to a bottom part of each of the plurality of wide-envelope outer magnetic pole components and a bottom part of the pagoda-shaped inner magnetic pole component;
• the top plate is attached to an upper part of each of the plurality of wide-envelope outer magnetic pole components, and the top plate is provided with a central through hole;
• and
• the magnetic bridge and the pagoda-shaped inner magnetic pole component are connected with an outer magnetic circuit through the central through hole;
• and
• the pagoda-shaped inner magnetic pole component is composed of a pagoda-shaped inner magnetic pole, an upper inner magnetic coil, and a lower inner magnetic coil;
• the pagoda-shaped inner magnetic pole comprises an upper part and a lower part, and the upper part has a diameter less than a diameter of the lower part;
• the upper part of the pagoda-shaped inner magnetic pole is wound by the upper inner magnetic coil;
• and
• the lower part of the pagoda-shaped inner magnetic pole is wound by the lower inner magnetic coil.