Wireless communication system, communication apparatus, and communication method

A wireless communication apparatus comprising:

• a first electrode configured to get rotated around an axis, wherein the first electrode forms at least a part of a shape of a first ring centered at a position on the axis;
• a second electrode configured to get rotated around the axis, wherein the second electrode forms at least a part of a shape of a second ring centered at a position on the axis;
• and
• a communication control unit configured to control wireless communication based on electromagnetic field coupling between the first electrode and third electrode, and configured to control wireless communication based on electromagnetic field coupling between the second electrode and fourth electrode.

A method for wireless communication by a wireless communication system comprising a first electrode, a second electrode, a third electrode, and a fourth electrode, the method comprising:

• rotating the first electrode and the second electrode around an axis;
• and
• controlling wireless communication based on electromagnetic field coupling between the first electrode and the third electrode, and wireless communication based on electromagnetic field coupling between the second electrode and the fourth electrode,
• wherein the first electrode forms at least a part of a shape of a first ring centered at a position on the axis, and
• wherein the second electrode forms at least a part of a shape of a second ring centered at a position on the axis.