Conception, réalisation et caractérisation d'inductances et de transformateurs tridimensionnels pour applications RF et microondes

Olga Bushueva 1
1 LAAS-MOST - Équipe Microondes et Opto-microondes pour Systèmes de Télécommunications
LAAS - Laboratoire d'analyse et d'architecture des systèmes [Toulouse]
Abstract : The miniaturization, fabrication and integration of RF passive components are current major challenges, also taking into account the fabrication cost which is very important especially for consumer applications. Passive components such as inductors and transformers are subject to an ongoing development to improve their performance and reduce the area occupied. The work described in this manuscript is part of that context and target the development of a new technological process allowing the production of low-cost three-dimensional high-performance inductive components. The work presented in this paper is divided into four chapters. The first chapter describes the state of the art of integrated inductors and transformers by addressing the main topologies used fabrication technologies and applications. In the second chapter, the study and optimization of solenoid inductors and transformers is discussed after describing the origins of performance limiting losses. For this, we use the 3D electromagnetic simulation. In the third chapter, the problem concerning the characterization of inductive components with high Q factor is raised. After finding that the measurement environment artificially reduces performance, some solutions are proposed and experimentally verified. Finally, the last chapter discusses the fabrication and characterization of developed components. The best measured performance corresponds to a quality factor of 61 to 5.4 GHz for an inductance value of 2.5 nH and a maximum available gain of -0.5 dB to 0.39 dB over the range from 3.8 to 6.5 GHz for a 2:2 transformer. These results place these components among the best current achievements.
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Physique des Hautes Energies - Expérience [hep-ex]. Université Paul Sabatier - Toulouse III, 2016. Français. 〈NNT : 2016TOU30140〉
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Olga Bushueva. Conception, réalisation et caractérisation d'inductances et de transformateurs tridimensionnels pour applications RF et microondes. Physique des Hautes Energies - Expérience [hep-ex]. Université Paul Sabatier - Toulouse III, 2016. Français. 〈NNT : 2016TOU30140〉. 〈tel-01416907v2〉

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