What are RFID Tags or Transponders (Labels)?
The RFID tag is also known as transponders, this act as an initial point of the flow of information to the reader. Radio waves are used by RFID technology to transmit and receive data between a tag and a reader. At its most basic level, an RFID reader transmits a signal to an RFID tag, and the tag responds with a signal that carries information.
The networks of devices with which the readers and writers communicate are provided via RFID tags, smart labels, and RFID tagging techniques.
An RFID chip, which is an integrated circuit (IC), an antenna, and a substrate are the three parts that make up an RFID tag.
Integrated Circuit (IC)
An electrical circuit, chip, or microchip is another name for an IC. The IC has a logic component that decides and offers memory for data storage. ICs are tiny microprocessors. The IC requires power to function.
The tag's largest component, the antenna, is attached to the tag IC. Depending on the type of tag, the antenna either transmits or reflects the signals it receives from the interrogator.
All of the other tag components are connected by the substrate. The IC is joined to the tag antenna after it has been deposited or printed on the substrate.
Types of RFID Tags
Active RFID Tags
Active RFID tags, which are helpful in location monitoring applications, have a battery and periodically transmit signals. Active tags typically have a greater read range since the battery in them can increase signal intensity (up to 100 meters).
Passive RFID Tags
Until they receive a radio signal from a reader, passive tags are dormant. The reader's signal is used to activate the tag and send a signal back to it that contains information.
Semi-passive (also known as battery-assisted) RFID tags have a battery but don't send out a signal regularly as active RFID tags do. Instead, the battery only powers the tag when a signal is received, allowing the reader's signal's entire energy to be reflected.
RFID Tag Types based on their storage
The RFID tag is responsible for information processing and storage.
A variety of RFID tag types are available for use, including:
One-bit EAS RFID tags: EAS (Electronic Article Surveillance) tags are frequently found in stores and businesses. "1-bit" tags are another name for EAS tags. They are frequently utilized as anti-theft techniques. The RFID tag is either turned off or taken off if the item has already been checked out.
RFID smart labels: Smart labels are straightforward RFID tags attached to a sticky paper label. This type of tag has the advantage of being compatible with both RFID and barcode scanners, as well as having the option for characters that can be read by humans.
Smart card tags: Smart labels differ from smart card tags. For various applications, including those requiring secure communications, such as financial transactions. These cards might have sophisticated processors and enough memory built into them.