Synthèse de fréquence par couplage d'oscillateurs spintroniques
type: Dataset
description: The current trends in telecommunication are leading to systems that are compatible with multiple standards and consequently multiple carrier frequencies. The frequency synthesis is a key element influenced by the local oscillator performance. In order to ensure the system compatibility with multiple telecommunication standards, the conventional solution consists in using one local oscillator for each standard. This solution is expensive, even more, since the cost per squared millimetre is increasing, while the silicon area occupied by the traditional LC-tank oscillators cannot be reduced in spite of the fact that technology is going to higher integration levels. Thus, it should be interesting to find a substitution to the LC-tank oscillators which leads to research for alternative solutions among new technologies. The spin torque oscillator (STO) is a new device issued from the ferromagnetic thin-film research. Due to its frequency accord ability and its capability to occupy relatively small volume, it appears as a potential candidate for the LC-tank oscillator replacement. However, a set of measurements prove that these devices exhibit poor power and phase noise performance, making them unable to fulfill the technical specification of the radiofrequency applications. We propose to reach these specifications by coupling of a large number of spin torque oscillators. In this scope, numerous questions appear regarding the procedures of modelling, analysis and synthesis of the complex interconnected systems. The modelling procedures are dedicated to the increasing complexity models that describe the input-output behaviour of a spin torque oscillator and its behaviour within the interconnected network. The analysis procedures are targeted to verify the stability and to evaluate the performance level of the interconnected systems. The synthesis procedures allow to design the interconnection law for spin torque oscillators in order to fulfill the technical requirements. In…
identifier: NNT: 2013ECDL0001
issued: 2026-05-12T04:15:47.854355
language: fr
modified: 2026-05-12T04:15:47.854360
contact point: Organization
  fn: CCSD
keyword: approche-entree-sortie
keyword: approximation-de-gabarits-frequentiels
keyword: architecture-de-reseaux
keyword: dissipativite
keyword: dissipativity
keyword: edo
keyword: equation-de-landau-lifshitz-gilbert-slonzcewski
keyword: factorisation-spectrale
keyword: frequency-domain-constraints
keyword: infoeu-reposemanticsdoctoralthesis
keyword: input-output-approach
keyword: interconnection-synthesis
keyword: landau-lifchitz-gilbert-slozcewski-equation
keyword: lti-system
keyword: network-architecture
keyword: non-linear-system
keyword: ode
keyword: optimisation-lmi
keyword: oscillateur-a-transfert-de-spin
keyword: spectral-factorization
keyword: spin-torque-oscillator
keyword: spiotherengineering-sciences-physicsother
keyword: synthese-dinterconnexions
keyword: systeme-lti
keyword: systeme-non-lineaire
keyword: theses
landing page: https://theses.hal.science/tel-00804561

Synthèse de fréquence par couplage d'oscillateurs spintroniques
type: Distribution
format: HTML
issued: 2026-05-12T04:15:47.862930
modified: 2026-05-12T04:15:47.794941
access URL: https://theses.hal.science/tel-00804561

test_moissonnage_selune
type: Agent