资料名称:Class-1 Generation-2 UHF RFIDProtocol for Communications at 860 MHz – 960MHzVersion 1.0.9
资料整理:dongxl
制作时间:2009-09-25
内容简介:
1.Versios 1.0,9
This specification defines the physical and logical requirements for a passive-backscatter, Interrogator-talks-first
(ITF), radio-frequency identification (RFID) system operating in the 860 MHz – 960 MHz frequency range. The
system comprises Interrogators, also known as Readers, and Tags, also known as Labels.
An Interrogator transmits information to a Tag by modulating an RF signal in the 860 MHz – 960 MHz frequency
range. The Tag receives both information and operating energy from this RF signal. Tags are passive, meaning
that they receive all of their operating energy from the Interrogator’s RF waveform.
An Interrogator receives information from a Tag by transmitting a continuous-wave (CW) RF signal to the Tag; the
Tag responds by modulating the reflection coefficient of its antenna, thereby backscattering an information signal
to the Interrogator. The system is ITF, meaning that a Tag modulates its antenna reflection coefficient with an information
signal only after being directed to do so by an Interrogator.
Interrogators and Tags are not required to talk simultaneously; rather, communications are half-duplex, meaning
that Interrogators talk and Tags listen, or vice versa.
2.Class-1 Generation-2 UHF RFIDProtocol for Communications at 860 MHz – 960MHz Versios 1.1.0
3.Class-1 Generation-2 UHF RFIDProtocol for Communications at 860 MHz – 960MHz Versios 1.2.0