Analysis: 75 Case Studies of Active RFID in Action

The choice of frequencies narrows towards the higher frequencies as longer ranges are demanded, partly because of radiation laws. However, in many applications different frequencies are used to do exactly the same job, the choice apparently relating more to the suppliers’ preference than any proven economic or functional reason. Currently, 433MHz is the most popular frequency for active RFID, mainly driven by the preferences of car remote locking devices and military applications. Ultra Wide Band (UWB) and 2.45GHz are growing quickly.