Patent attributes
An antenna comprises a split ring resonator. The antenna has a main portion which forms a split ring with a split portion. The main portion has an upper surface portion, a first fixed portion, a second fixed portion, a third fixed portion, a first reinforcing portion, a second reinforcing portion, a feed portion, a first end portion and a second end portion. Each of the first fixed portion, the second fixed portion and the third fixed portion is fixed on a circuit board when the antenna is mounted on the circuit board. Lower ends of the first fixed portion, the second fixed portion and the third fixed portion define an imaginary plane perpendicular to an up-down direction. Each of lower ends of the first reinforcing portion, the second reinforcing portion and the feed portion is positioned between the upper surface portion and the imaginary plane in the up-down direction.
