PhD in Design of a Multiple Ports Tag for Advanced Backscattering and RFID Techniques - LCIS

id="offer-description" class="ecl-u-type-heading-2 ecl-u-mt-none ecl-u-mb-l">Offer 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. Scientific Context : The RFID technology is the major tool to identify items remotely. For this, an RFID tag is attached to each item and can be read by a distant reader. The tag is composed of an antenna and a chip (digital circuit) and can be entirely passive i.e., it does not require the presence of a battery. The actual RFID systems are able to identify several hundreds of tags per second at distances which can be higher than 10 meters. Finally, due to its simple and passive architecture, the cost of a