Implémentation de tags RFID UHF basé sur le concept d'antenne multi-ports // Design of UHF RFID tags based on the concept of multi-port antennas

Topic description

The objective of this PhD thesis is to design a new generation of UHF RFID tags which can outperform all classical UHF RFID tags designed in the last 20 years. For this, the architecture of a tag has to be modified but without increasing the power needed to activate the tag and without increasing its cost. Finally, the tag has to be compliant with the EPC Gen2 protocol which means that the proposed tag has to be read with classical RFID readers already deployed. To achieve these objectives, this PhD subject relies on the concept of multi-port antenna. During the PhD, the candidate will design the first multi-port UHF RFID tag. The proposed multi-port tag should be able to improve simultaneously the harvested power and the modulated backscattered power. If successful the read range of the proposed concept should be increased by 41% compared to classical (single-port) UHF RFID tags.
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