20100320275 | STRUCTURE FOR RADIO FREQUENCY IDENTIFICATION AND ITS MANUFACTURING METHOD - A improved structure RFID includes: a substrate with an entire side of a metal conductive material; a slot antenna disposed on the metal side of the substrate; and an identification chip disposed on the substrate and electrically connected to the slot antenna. The RFID is manufactured using a simpler and cheaper method, so manufacturing costs are significantly reduced while providing low energy consumption, pollution-free, recyclability, and the RFID has high antenna gain, strong reflectivity, and high conductivity. Shield effects provided by the whole metal side of the substrate can also reduce effects to the electrical properties of the RFID caused by the target object and the environment, so the RFID is more suitable for metal objects and conductors with moisture. | 12-23-2010 |