Due to a lack of financial resources, we unfortunately have to suspend the import of any new radio frequency and mobile phone-related articles as of now (November 27, 2017). We apologize for this inconvenience and will keep you informed.

Because we received a large number of inquiries, we set up a bank account to accept donations. With their aid, we hope to resume, at least partly, the import of newly published articles to the RF archive of the EMF-Portal. Any contribution is greatly appreciated. Thank you for your kind support!

DONATION ACCOUNT: Uniklinik RWTH Aachen, IBAN: DE27 3905 0000 0013 0040 15, BIC: AACSDE33, Reference: GB-FM/380454/Arbm


Radio Frequency Identification

  • RFID
Communications engineering. A general term describing a system that transmits the identity of an object, a person or an animal wirelessly by using radio waves. An RFID tag consists of a microchip attached to an antenna. Passive RFID tags have no power source whereas an active RFID tag includes usually a battery. An RFID reader is used to retrieve the data stored on an RFID tag. It has one or more antennas that emit radio waves and receive signals back from the RFID tag. RFID systems can operate at low frequency (124 kHz, 125 kHz or 135 kHz), high frequency (13.56 MHz) and ultra-high frequency (860 MHz to 960 MHz).