Towards UHF RFID robust design tag

The paper presents a robust UHF tag for RFID application. The antenna design for the UHF tag is obtained from an automated antenna design tool developed to obtain original topologies in order to satisfy real environment RFID constraints. The approach is completely automatic and requires very little human interactions during the design process. The obtained prototype was measured and compared with the NXP FF95-8 inlay. The inlays were tagged in many disruptive elements to evaluate their sensitivity to the real RFID environment. The proposed inlay shows read range stability wherever used in free space or tagged on an object. It has a small size of 0.28¿ by 0.02¿ in the UHF frequency band. Regardless of the environment, the read range is relatively constant (variations from 5 m to 8 m are observed) on the whole worldwide RFID frequency bands [860-960 MHz].