Scientific direction Development of key enabling technologies
Transfer of knowledge to industry

PhD : selection by topics

Integrated outphasing PA architecture and design for 5G

Département Architectures Conception et Logiciels Embarqués (LIST-LETI)

Laboratoire Architectures Intégrées Radiofréquences

01-09-2018

SL-DRT-18-0453

alexandre.giry@cea.fr

Objective of the proposed thesis is to study advanced Outphasing PA (OPA) architectures and investigate opportunities for integration in RFSOI technology in order to propose high performance low cost solutions for future 5G applications. 5G will allow to address the continuously growing demand for connected objects as well as mobile communications with high data rates and instant access to information. The need for high linearity and reduced power consumption, make integrated Power Amplifier (PA) design for 5G applications highly critical. In addition, the trend towards higher data rates leads to RF signals with higher peak to average power ratio that make integrated PA design even more challenging. This calls for an important shift from traditional integrated PA architectures to advanced integrated PA architectures with high linear efficiency and output power. Objective of the proposed thesis is to study advanced Outphasing PA (OPA) architectures and investigate opportunities for integration in RFSOI technology in order to propose high performance low cost solutions for future 5G applications. The candidate will investigate different OPA architectures and perform a detailed study of the most promising architecture, proposing innovative ways to improve performances. He/she will investigate practical implementation in RFSOI technology, paying special attention to the performances and occupied silicon area. Integrated PAs will be fabricated on RFSOI technology and characterized, potential differences between simulated and measured performances will be analyzed and justified. Directives and perspectives for high performance integrated OPA design will be proposed.

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