RFID

RFID

             


          RFID stands for Radio Frequency Identification. An RFID is comprised of several different parts: the tag, the antenna, and the reader.

The RFID tag has a microchip that stores data. The tag also has an antenna which receives electromagnetic energy from the reader's
antenna. The tag uses power to send radio waves back to the reader. The tag either gets the power from an internal battery or using power harvested from the reader’s electromagnetic field. The reader picks up the tag's radio waves and interprets the data.




Information Source:
http://electronics.howstuffworks.com/gadgets/high-tech-gadgets/rfid.htm
Picture Sources:

http://phys.org/news/2012-08-short-duration-clock-approach-thwarts-rfid.html

http://www.epc-rfid.info/rfid

http://www.autoassembly.com/automated-assembly-corporation/rfid/