THE DUAL BAND RFID TAG ANTENNA OF S SHAPE MOUNTABLE ON METALLIC SURFACE

摘要

The present invention relates to a dual band antenna of the RFID tag is attached to metal as S-shaped microstrip stylized meet the dual band with the difference in length by placing the micro-strip line on each side of the ground around the feed line forms a meander line with a full line and a variation of the end of the microstrip feed line to the spiral configuration of the antenna By satisfying the overall size reduction, and that the characteristic of the metal object, such as a conductive material is attached to provide a dual band antenna of the RFID tag, and S-shape easily. ; is the present invention for achieving the object, has a predetermined dielectric constant, the substrate to perform a grounding function; And a radiating element positioned on the ground surface of the substrate; Doedoe configuration, the radiating element is characterized in that it comprises a first and a second microstrip line positioned on the ground next to the microstrip feed line and the amount of the feed containing the RFID chip is made of.