HF RFID electromagnetic emissions and performance

We examined the emissions of commercial HF (high-frequency) proximity RFID (radio frequency identification) systems and the performance of a typical RFID system in the presence of electromagnetic (EM) interference. Some initial investigations into security and reliability were also performed. These investigations highlight detectability and readability of an RFID transaction at a distance. We performed measurements to determine the power radiated by some commercial systems and monitored the RFID transaction in adverse EM environments.