A FOLDED INVERTED-F TYPE ANTENNA WITH CONICAL RADIATION PATTERN FOR THE CONTAINER RFID TAG APPLICATIONS

摘要

A folded inverted-f type antenna with conical radiation pattern is provided to communicate with a RFID smoothly reader while making the size of the antenna small. A folded inverted-f type antenna with conical radiation pattern includes a ground plane(G), a dielectric(F) settled on the ground plane and a pair of horizontal rectangular or square elements(110, 120) symmetry of an extension lines(111a, 121a) settled on the top of the dielectric, Vertical device(V1, V2) extended from the extension line to the ground plane and A feeding line(FL) extended from the wire extend of the extension line of the horizontal element to the ground plane.