August 2019
Intermediate to advanced
462 pages
14h 29m
English
Content preview from Short-range Wireless Communication, 3rd Edition
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
Start your free trial
Chapter 13
Radio frequency identification (RFID)
Abstract
The roles of radio frequency identification (RFID) systems over the frequency range of 125 kHz through 2.45 GHz are discussed in this chapter. All of them have a configuration of a reader terminal that forms a communications link with a tag or (smart) card that serves to convey the identification of an article or human user. RFID is classified according to energy source of the tag/card as “passive” or “active,” or according to the type of propagation link—near field or far field. We explain the communication signal interfaces specified in international standards for proximity cards and vicinity cards at 13.56 MHz, and for backscattering tags on UHF frequencies between 860 and 960 MHz. ...