Patent ID: 8632009

Claim:
A near field magnetic coupling antenna, comprising: a plurality of annularly arranged radiators, with a first gap formed between any two adjacent radiators; and an annular conductive portion, having a plurality of annular conductive segments, each annular conductive segment partially overlapping two adjacent radiators, with a second gap formed between the two adjacent annular conductive segments and the annular conductive portion surrounding the radiators; wherein the two adjacent radiators are associated with a feed point and a ground point, and the feed point and the ground point are defined in the neighborhood of the first gap between the two adjacent radiators; wherein the number of the annular conductive segments is equal to the number of the radiators; wherein the radiators are arranged in a predetermined manner so that a star-shape cavity where no radiators are present is defined; wherein the radiators are formed by having a disk-shaped conductive plate evenly partitioned at a plurality of predetermined positions so as to define the star-shaped cavity, with the predetermined positions serving as vertices of the star-shaped cavity, and the annular conductive segments are evenly partitioned at a plurality of equally-partitioned points, with the number of the equally-partitioned points equal to the number of the vertices of the star-shape cavity.