RFID tag differences

Radio frequency identification (RFID) tags or transponders are small devices that utilize low-power radio waves to receive, store and transmit data to a nearby reader. An RFID tag consists of the following main components: a microchip or integrated circuit (IC), an antenna, and a substrate or layer of protective material that holds all the components together.

There are three basic types of RFID tags: passive, active, semi-passive or battery assisted passive (BAP). Passive RFID tags have no internal power source, but are powered by electromagnetic energy transmitted from the RFID reader. Active RFID tags carry their own transmitter and power source on the tag. Semi-passive or battery assisted passive (BAP) tags consist of a power source incorporated into a passive tag configuration. Additionally, RFID tags operate in three frequency ranges: Ultra High Frequency (UHF), High Frequency (HF) and Low Frequency (LF).

RFID tags can be attached to a variety of surfaces and are widely available in a variety of sizes and designs. RFID tags also come in many forms, including but not limited to wet inlays, dry inlays, tags, wristbands, hard tags, cards, stickers, and bracelets. Branded RFID tags are available for many different environments and applications,