Multi-degree-of-freedom wireless power transmission device and preparation method thereof

The invention discloses a multi-degree-of-freedom wireless power transmission and emission device, which comprises a double-cross dipole coil carrier. A coil set capable of generating a multi-degree-of-freedom magnetic field after being electrified is arranged in the coil carrier; the coil set comprises a coil a, a coil b, a coil c and a coil d which are circumferentially arranged on the surface of the coil carrier; and as the current flow directions are consistent, the coil a, the coil b, the coil c and the coil d are respectively connected with an emitting stage circuit capable of convertingdirect current into high-frequency alternating current. The invention also discloses a preparation method for the multi-degree-of-freedom wireless power transmission and emission device. The device prepared by the method can generate a relatively uniformly distributed three-dimensional omnidirectional magnetic field around the coil carrier, so that the planar receiving coil in the coil carrier realizes free positioning o