Passive and semipassive RFID tags do not use a radio transmitter; instead, they use modulation of the reflected power from the tag antenna. Reflection of radio waves from an object has been a subject ...

All the calculations we've performed so far assume that a wave leaves the antenna and strikes the tag, interacting with no other objects. This kind of calculation is very sensible if the tag and ...

One key factor when it comes to designing solutions using passive UHF RFID is to understand how exactly the technology works, with its benefits and limitations, and to ensure that products are ...