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HF RFID

High-Frequency RFID, or simply HF RFID is the most extensively used RFID technology with ubiquitous usages subsuming Access Control, Operational maintenance, Container tracking, or Mass transit, due to its shorter read ranges >1 m. RFID (Radio Frequency Identification) is used in multiple domains, viz., medication management, sophisticated lab equipment tracking, Logistics labeling, etc. It allows objects to be identified by the use of electronic tags (or labels).

This technology is used to automatically identify objects or track the objects such as ID cards, wrist bands, key guards, gate pass, etc. The tags are usually delivered as labels, cards, or plastic encased tags and are generally small in size that can be applied to different types of items. High Frequency (HF) electrical waves operate/broadcast at 13.56 MHz on the radio frequency spectrum with reading ranges between 10 cm and 1 m. There are several HF RFID standards, such as the ISO 15693 or ISO/IEC 14443 A or  ISO/IEC 14443 for tracking items.

HF applications are continuously emerging from numerous companies looking to solve business problems using RFID technology.  HF tags with security issues are being addressed by adding both a metal lining to lower the read range and a password that has to be keyed into the RFID reader to read the tag. HF RFID readers are used with HF tags and are relatively low in cost, depending on the size and form factor per tag. HF tags rely on magnetic coupling as their power source so they tend to last the lifespan of the application unless damaged by wear and tear to the tag.

The ability to be read by smartphones give HF tags the ability to gain widespread popularity in countless applications. Tags in this category can still operate on objects exposed to water and are often a good fit for tagging test tubes or glass tubes or vials containing liquids. There’s nearly a horizon-less quantum of label size and memory combinations available to fit the requirements of nearly any operation.

HF RFID has a slower data transfer though is less sensitive to interference. When equated with LF RFID, HF RFID does possess a faster data transmission but is more susceptible to radio wave interference. These benefits are often leveraged in a wide selection of globe HF applications. From glass slide tracking to operational maintenance, the potentials seem endless! This type of tag’s competency to interact with multiple devices makes this category popular.