LF RFID125–134 kHzHF / NFC13.56 MHzUHF RFID860–960 MHzμW RFID2.45 GHz100 kHz1 MHz10 MHz100 MHz1 GHz10 GHzAM Radio530 kHz – 1.7 MHzFM Radio87.5 – 108 MHzBT / WiFi2.4 GHzWiFi 5/65 – 6 GHz

Overview

The GS1 version of the UHF RFID air interface protocol. Technically aligned with ISO 18000-63, but published by GS1 and widely referenced in the RFID industry. Defines the singulation protocol, memory structure, and tag features like Impinj Monza, NXP UCODE, etc.

Why it matters for RFID

The industry-standard name for UHF RFID tag communication. When someone says "Gen2 tag", they mean a tag conforming to this standard.

Official document

https://www.gs1.org/standards/epc-rfid/uhf-air-interface-protocol