Smart Sensing: Chipless RFID Solutions for the Internet of Everything

The Internet of Everything (IoE), also called ambient intelligence, is the subject of intense worldwide research with the goal of interconnecting a large number of "things": intelligent sensors, tags, mobile phones-the list is virtually endless. These new smart objects and sensors will be able to produce information about their environment and share it with the Internet via wireless communication [1]. Radio-frequency identification (RFID) technology can have a significant impact in this regard. It is a wireless data-capturing technique that utilizes RF energy for automatically extracting the identity of remotely placed objects. The RFID tag has the potential to replace the barcode because of its manifold benefits, including its long reading range (greater than 10 m) and non-line-of-sight reading capability [2], [3].