RFID Basics

RFID stand for ‘Radio Frequency IDentification.’ In RFID systems, ‘readers’ use radio signals to communicate with data ‘tags.’ A ‘tag’ consists of an antenna connected to a data-containing integrated circuit that can be attached to almost any object, thereby giving the object a unique identification number which can be read remotely. RFID technology is used to control building access, inventory, mass transit ticketing, and highway tolls, and it is being used to increase the security of new U.S. passports.