Patent ID: 7609175

Claim:
An RFID system for determining the location of a vehicle that passes thereover and has a tag reader, the system comprising: a plurality of tag arrangements for a plurality of adjoining parallel lanes, each tag arrangement being located within the corresponding lane, the tag arrangement including: at least one tag having a first antenna for RF communications and information for determining a location of the vehicle, and an antenna arrangement over which the vehicle passes, including: a second antenna having a size larger than that of the first antenna, for defining RFID coverage for the tag reader of the vehicle so that the RFID coverage is located within the corresponding lane without overlapping an RFID coverage of another tag arrangement in an adjoining parallel lane; and a coil for inductively coupling the first antenna and the second antenna, for transferring energy between the first antenna and the second antenna, the tag reader of the vehicle communicating with the at least one tag via the antenna arrangement.