UHF RFID systems communicate using frequencies around 900MHz with a maximum read range of 10 meters (approximately 30 feet) under ideal conditions. This makes UHF RFID a promising solution for reading pallets and cartons off of conveyors or in portals from a distance. But this capability does not in any way preclude UHF from near field and near contact applications as UHF systems can be easily tailored to meet lower range requirements. This can be accomplished by reducing power at the reader, reducing the size of the reader antenna, and/or reducing the size of the tag antenna.
No comments:
Post a Comment