TRASPONDER

RFID transponders are a kind of transponder that uses RFID technology to communicate with RFID readers. Tags are small "pennies" that can be attached to objects such as goods, pets and people; they contain a microchip and an antenna. When a tag is subjected to the radio field of an RFID reader, the microchip is energized and transmits data stored on the tag to the reader; RFID readers can then use this information to identify and track tags.

RFID transponders come in a variety of shapes and sizes and can be programmed to store different types of data.

RFID transponders are used in a variety of applications, including:

• Inventory control: RFID tags can be used to keep track of inventory. When an item is shipped or received, its RFID tag can be scanned to update inventory records.
• Access control: Tags can be used to control access to buildings and restricted areas. When a person with an authorized RFID tag approaches an RFID reader, the door opens.
• Contactless payment: Tags can be used to make contactless payments. For example, some credit and debit cards contain RFID tags that can be used to make payments at contactless payment terminals.
• Anti-theft: Tags can be used to prevent theft. For example, some clothing stores use RFID tags on their clothing. If an item with an unpaid RFID tag attempts to leave the store, it will set off an alarm.

RFID transponders offer a number of advantages over other identification technologies, such as bar codes. RFID tags can be read remotely, even if they are not in line of sight with the reader or are in harsh conditions, such as in dark or wet environments, plus they can store more data than bar codes.

RFID transponders are a valuable tool for a variety of applications. They are reliable, versatile and inexpensive. As RFID technology continues to develop, they are likely to be used in even more applications in the future.