How RFID Works?

RFID taging technology is successfully used among us, but we don’t notice them always and do not think about them as they are not noticeable because we do not have directly to take any actions to transfer or read any information from RFID Tags. But probably everyone notices in big supermarkets, book stores two parallel frame antenas and thicker labels on products you buy, or maybe you have RFID entrance card at your work. The above figure shows how this technology works.

RFID is so called Radio Frequency Identification system which consists of two main parts: transmitter and receiver. The labels, access cards and even passports in some countries they have RFID transponders integrated. These transponders are called “tags”.