Chipless RFID; a Generic Term for Systems That Use RF Energy to Communicate Data

 

Chipless RFID

Chipless RFID refers to the RFID (Radio-frequency identification) tags that do not require a microchip in the transponder. Chipless RFID can operate with a range greater than 10 meters and up to 256 bits of data, have greater physical performance, and cost one-tenth that of their silicon chip counterparts. The Japanese giant Hitachi has developed the world's smallest and thinnest RFID chip. Measuring only 0.15 x 0.15 millimeters in size and 7.5 micrometers thick, it is a smaller version of the previous record holder, Hitachi's 0.4 x 0.4 mm Micro-Chip.

Chipless RFID tags do not use a microchip transponder, instead they use radiofrequency (RF) energy to communicate data. Some Chipless RFID tags use plastics or conductive polymers instead of a silicon microchip. Moreover, such tags have some extraordinary features such as unique signature, magnetically encoded stripe in banknotes, and microwave reflecting fiber. They are widely used in item-level tagging, banking cards, and banking cards, among others. These tags are also used for animal tracking, anti-counterfeiting, smart tickets, asset tracking, air baggage, and high volume secure documents.

RFIDs offer longer range and ability to be automated, unlike barcodes that require a human operator for interrogation. RFID systems offer benefits for businesses of all sizes, allowing them to rapidly improve efficiency and reduce cost by automating processes and improving utilization of assets and quality. Therefore, there is an increasing demand for Chipless RFID in various end-use industries, especially in banking and healthcare sector. For example, in May 2021, Vubiq Networks (US) announced that it has successfully modeled its patented millimeter wave RFID technology incorporating polarization and phase detection.

The result is a Chipless RFID data tag that approaches the cost of printing a bar code, but with the ability to contain hundreds of data bits in the size of a postage stamp. Chipless RFID is an evolving wireless technology for automatic identifications, access controls, tracking, security and surveillance, logistics, database management, and inventory control.


Location: United States

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