Magnetic field generating apparatus having cannon shape and magnetic field generation method thereof

A magnetic field generating apparatus, comprising:

• a coil part configured to generate a magnetic field transmitted to the target to which wireless power is to be supplied;
• a ferrite beamformer with a bar shape configured to extend in a direction perpendicular to the coil part;
• and
• a ferrite shield configured to extend from a predetermined position of the ferrite beamformer and surround the coil part in a dome shape.

A magnetic field generating apparatus, comprising:

• a coil part configured to generate a magnetic field transmitted to the target to which wireless power is to be supplied;
• a ferrite beamformer configured to extend in a bar shape in the vicinity of the coil part;
• and
• a ferrite shield configured to comprise an opening formed to allow rotation of the ferrite beamformer about a first rotation axis, surround the coil part in a dome shape, and rotate about a second rotation axis perpendicular to the first rotation axis.

A method of generating a magnetic field, the method comprising:

• sensing a target to which wireless power is to be supplied;
• rotating about first and second rotation axes such that a magnetic field is transmitted to the target;
• generating the magnetic field;
• and
• beamforming the generated magnetic field toward the target through a ferrite frame to supply wireless power.