Patent attributes
An electronic device includes a first planar inductor and a second planar inductor. The first planar inductor includes at least a first ring structure and a second ring structure interconnected electrically for generating a first magnetic field having a first direction and a second magnetic field having a second direction respectively, wherein the first direction is different from the second direction. The second planar inductor includes at least a third ring structure and a fourth ring structure interconnected electrically for generating a third magnetic field having a third direction and a fourth magnetic field having a fourth direction respectively, wherein the third direction is different from the fourth direction. The first ring structure at least partially overlaps the third ring structure to form a first overlap region, and the second ring structure at least partially overlaps the fourth ring structure to form a second overlap region.