RFID TAG ESPECIALLY FOR USE NEAR CONDUCTIVE OBJECTS

摘要

An RFID tag (14) comprising an antenna assembly, including a shielding layer (18) comprising an electromagnetic shielding material, a radio frequency loop antenna (22), and a spacer (20) comprising a spacer material having a permittivity less than about 2 interposed between the antenna and the shielding layer is disclosed. Also disclosed are methods of manufacturing such an RFID tag. Also disclosed is the use of such an RFID tag for use in identifying a vehicle, for example in the context of fuel-purchase authorization.