For optimal system performance Magellan offers special inlet form factors for the PJM StackTag™ and PJM ItemTag™ RFID chips. Each application should be assessed to determine the most suitable inlet form factor to achieve maximum system performance. "Inlets" or "Inlays", also called "Tags", are functioning RFID devices comprising a microchip, an antenna coil and a carrier substrate. The inlet antenna is either printed or etched on the substrate (plastic film) and the RFID microchip is attached to the antenna in various ways. Inlets are then further converted into RFID adhesive transparent labels, paper labels or RFID tokens.

PJM ItemTag™
The PJM ItemTag™ is designed, like all other 13.56MHz tags today, to use tuned inlet antennas as these provide the best operating range of up to 1m. However, they need to be kept well separated as tuned antenna coils interfere with each other.

PJM StackTag™
The PJM StackTag™ is unique in its design. It can be identified, read and written to even when tags touch, overlap or are present in a stack of some form. PJM StackTag™ uses untuned inlet antennas so that tags do not interfere with each other. A special functionality ensures a reliable read/write operation of any PJM StackTag even when it is buried inside a deep stack of other tags.

In almost all real-world situations RFID tags touch or overlap therefore, in practise, stackability is essential to most RFID applications. PJM StackTag™ inlets, due to their unique functionality, are largely unaffected by the presence of metals or liquids, which would cause serious problems for tags in other frequencies

A full overview of existing inlets, labels and tags is available in the Inlet Product List