| Publisher | GAO RFID | ||
|---|---|---|---|
| Format | HTML | Date added | 01 Jul 2006 |
| Topics | Mobile - Wireless Communications, RFID | ||
| Downloads | 73 | ||
Radio Frequency IDentification (RFID), an automatic recognition technology employing wireless communications, has recently drawn much attention. RFID tags, both passive tags and active tags are broadly used in virtually every industry in the world. This paper introduces how the active tag works and also discusses some applications. An active tag is an RFID tag that incorporates a battery, and can communicate with a reader that is several tens of meters away (there are tags that can communicate at several hundreds of meters). While passive tags can only respond to an electromagnetic wave signal emitted from a reader, active tags can also spontaneously transmit an ID.
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