Device and method for improving magnetic performance of manganese zinc ferrite through coupling of microwave field, electric field and magnetic field

The invention provides a device and method for improving the magnetic performance of manganese zinc ferrite through microwave field, electric field and magnetic field coupling. The device comprises a working cavity defined by an isolation frame, a microwave generator is installed at one end of the isolation frame, and a magnet exciting coil is coaxially wound on the outer side face of the isolation frame; a fixed electrode chuck and a movable electrode chuck are arranged at the two ends of the axis of the isolation frame respectively. The method comprises the steps that a magnetic core to be processed is clamped between a fixed electrode chuck and a movable electrode chuck, and the path to be processed of the magnetic core is collinear to the axis of a magnet exciting coil; respectively setting processing parameters of a microwave field, a pulsed electric field and/or a pulsed magnetic field according to the model of the manganese zinc ferrite magnetic core, and carrying out one-field, two-field or three-fiel