Patent ID: 8009105

Claim:
A RFID antenna etched on a printed circuit board with a first edge and a second edge adjacent to the first edge defined thereon, comprising: a first antenna radiator disposed at the second edge of the printed circuit board, the first antenna radiator including a first radiating portion of strip shape, a first connecting portion bent outwards from an end of the first radiating portion facing the first edge, a second radiating portion of strip shape parallel to the first radiating portion and extended opposite to the first radiating portion from the other end of the first connecting portion, and a third radiating portion bent inwards from the other end of the second radiating portion; a second antenna radiator, the second antenna radiator including a fourth radiating portion of strip shape extending along the first edge of the printed circuit board, a second connecting portion bent towards the second edge from an end of the fourth radiating portion adjacent to the second edge, and a fifth radiating portion of strip shape extending in alignment with the first radiating portion from the other end of the second connecting portion and spaced away from the third radiating portion; and a tag chip disposed between the third radiating portion and the fifth radiating portion.