Editing Smart card (section)

==== Contactless smart cards ====
{{Main|Contactless smart card}}

''Contactless smart cards'' communicate with readers under protocols defined in the [[ISO/IEC 14443]] standard. They support data rates of 106–848&nbsp;kbit/s. These cards require only proximity to an antenna to communicate.
Like smart cards with contacts, contactless cards do not have an internal power source. Instead, they use a [[loop antenna]] coil to capture some of the incident radio-frequency interrogation signal, [[rectifier|rectify]] it, and use it to power the card's electronics. Contactless smart media can be made with PVC, paper/card and PET finish to meet different performance, cost and durability requirements.

APDU transmission by a contactless interface is defined in [[ISO/IEC 14443]]-4.