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Alexis (Rodrigo) IGA JADUE

EM compliant Low-Energy Signal Demodulation for NFC applications

Low-power, ASK Demodulation, Electromagnetic radiation, Micropipeline, Non-uniform sampling

The synchronous digital blocks in Analog Mixed-Signal (AMS) circuits are a source of electromagnetic (EM) noise for the analog blocks and may strongly disturb a RF signal demodulation. Moreover, their synchronous nature is not well-suited for remotely powered systems because the supply voltage is susceptible to variations. One of the strength of the micropipeline circuits is their robustness to voltage variations. Indeed, they are able to adapt their computation speed to the delivered energy. Moreover, their event-driven behavior fits well with the emerging non-uniform sampling schemes allowing drastic data reduction. Thanks to this combination between a dedicated sampling scheme and a robust event-based circuitry, it is possible to envision an efficient low-power RF demodulation. Finally, this approach will benefit from the undergoing research on the EM spectrum control based on micropipeline circuits.
The PhD work will be focused on developing a demodulation technique based on a non-uniform sampling scheme and designing the adapted digital blocks, which will target the micropipeline style in order to reduce power, improve robustness to voltage variations and fit EM requirements for NFC.


Thesis director: Laurent FESQUET
Thesis supervisor: Sylvain ENGELS (STMicroelectronics)
Thesis started on: Sept. 09/2018
Thesis defence: 24/02/2022
Doctoral school: EEATS

Submitted on January 12, 2022

Updated on February 9, 2022