RFID Devices Operating in the UHF Frequency Regime: A review of industrial experience at IES Company

In this contribution we illustrate different industrial applications in the RFID context, developed by IES S.r.l. Company. Two different devices for a system called "IGTR System" (Identificion Geografica con Tag Radio) have been designed. Both of them operate in the Ultra High Frequency range, at different frequencies (865-928 MHz and 2400 MHz respectively). For the lower frequencies (865-928 MHz) a passive tag was used. Instead, for the higher frequencies an active tag using Bluetooth Low Energy protocol has been designed. These systems have been successfully tested in South America for access control applications. Currently, IES is working to realize technical solutions that employ metamaterial technology, in order to reduce the antenna dimensions. In this context, furthermore, as a research topic, IES intends to study the possibility to use micro metamaterials that operate in the S-C band such as RFID readers antennas.