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Caractérisation et Modélisation de structures MASMOS en vue de la conception d'un amplificateur de puissance pour la LTE

Frédérique Simbelie 1
1 XLIM-SRF - Systèmes RF
XLIM - XLIM : SRF
Abstract : The main objective of this work is the characterization and modeling of a new component named MASMOS designed and patented by ACCO company. This new structure overcomes the issue concerning the inherent low breakdown voltage of CMOS technology. The first chapter describes the two stacked transistors included in the MASMOS structure and its behavior with respect to the control voltages. Thereafter, the key steps required to develop the non-linear model have been detailed. Finally, the parameters used to characterize the power amplifiers performances are defined as well as the linearity criterion. The second chapter concerns the MASMOS electrical model, done for two different size. Model extraction is explained starting from the mandatory device characterization. Device optimal load impedances are estimated thanks to load-pull simulations. Furthermore, the CAD-compatible models are validated in large signal operation using CW characterizations for several load impedances. Last chapter is dedicated to the MASMOS linearity assessment using two different measurement set up. A generic test signal consisting in 8 non equidistant carriers, allowing non-frequency overlap is used to determine the NPR in-band. Then characterization of the linearity of pre-matched MASMOS was carried out using a 16-QAM modulation and also LTE signals.
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Submitted on : Monday, May 7, 2018 - 6:51:08 PM
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Frédérique Simbelie. Caractérisation et Modélisation de structures MASMOS en vue de la conception d'un amplificateur de puissance pour la LTE. Electronique. Université de Limoges, 2018. Français. ⟨NNT : 2018LIMO0010⟩. ⟨tel-01787856⟩

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