Time-Varying Delay Passivity Analysis in 4 GHz Antennas Array Design

Sebastien Cauet (1) , Florin Hutu (2, 3) , Patrick Coirault (1)

1 LAII [Poitiers] - Laboratoire d'automatique et d'informatique industrielle [EA 1219]
2 SOCRATE - Software and Cognitive radio for telecommunications
3 CITI - CITI Centre of Innovation in Telecommunications and Integration of services

In this paper, a new approach for synchronization of dynamical networks with time-delays is proposed. It is based on stability theory of coupled time-delayed dynamical systems. Some new criteria for stability analysis which ensure the synchronization of the networks are analytically derived. Conditions for synchronization,in the form of Linear Matrix Inequality, are established. They use the Lyapunov and Krasovskii stability theories. In this approach, parameter uncertainties are introduced in the network model. Numerical simulations show the efficiency of the proposed synchronization analysis. A network of 4-GHz smart antenna array is used and analyzed in some details. This array provides a control of the direction of the radiation pattern.

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]; Electronique

Sebastien Cauet, Florin Hutu, Patrick Coirault. Time-Varying Delay Passivity Analysis in 4 GHz Antennas Array Design. Circuits, Systems, and Signal Processing, 2012, 31 (1), pp.93-106. ⟨10.1007/s00034-010-9247-8⟩. ⟨hal-00600716⟩