On the Use of Vector Fitting and State-Space Modeling to Maximize the DC Power Collected by a Wireless Power Transfer System

Regis Rousseau 1 Florin Hutu 1 Guillaume Villemaud 1
1 SOCRATE - Software and Cognitive radio for telecommunications
Inria Grenoble - Rhône-Alpes, CITI - CITI Centre of Innovation in Telecommunications and Integration of services
Abstract : In this paper, the authors are proposing a way to maximize the DC power collected in the case of a wireless power transfer (WPT) scenario. Three main aspects are taken into account: the RF (radio frequency) source, the propagation channel and the rectifier as the main part of the energy collecting circuit. This problem is formulated as a convex optimization one. Then, as a first step towards solving this problem, a rectifier circuit was simulated by using Keysight's ADS software and, by using a classical model identification strategy i. e. Vector Fitting (VF) algorithm, the state-space model of the passive parts of this rectifier were extracted. In order to verify the extracted model, S 11 input reflection coefficients and DC output voltages of the original circuit and the state-space model are compared.
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Regis Rousseau, Florin Hutu, Guillaume Villemaud. On the Use of Vector Fitting and State-Space Modeling to Maximize the DC Power Collected by a Wireless Power Transfer System. AT-RASC 2018 - 2nd URSI Atlantic Radio conference, May 2018, Grande Canarie, Spain. pp.1-4. ⟨hal-01903660⟩

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