60 GHz with good spectral quality? Check!
Categorie(s) : Innovation & Society, News, Research
Published : 5 October 2015
A phase-locked loop (PLL) is the best way to generate the high frequencies—around 60 GHz—required for tomorrow’s 5G telecommunications and Wi-Fi. However, the higher the frequency, the lower the spectral quality—and transmission speeds. PhD candidate Clément Jany (who has since obtained a research position at Leti) set out to overcome this hurdle. And his solution is nothing short of brilliant!
Jany developed a programmable frequency multiplier capable of multiplying the initial frequency by 30—compared to 2 or 4 for the best known systems currently available. The signal generated is based on a reference frequency of 2 GHz offering high spectral quality. A patent application has been filed for the proof-of-concept, which has already been leveraged for two EU research projects in which Leti is involved.