Design of Passive Ultra-High Frequency Radio-Frequency Identification Tag

There is a growing interest in the Radio-Frequency Identification (RFID) technology since the development of the low cost passive Ultra-High Frequency (UHF) RFID technology. This technology is giving rise to new applications as it as advantages compared to other identification technologies. This paper presents the UHF RFID chip characteristics and electrical modeling before introducing the design of the passive UHF RFID tag antennas illustrated by an example.