Piecewise Semi-Analytical Formulation for the Analysis of Coupled-Oscillator Systems

Autor:	Umpierrez, Pedro, Arana, Victor, Sancho, Sergio
Rok vydání:	2024
Předmět:	Electrical Engineering and Systems Science - Systems and Control Nonlinear Sciences - Adaptation and Self-Organizing Systems
Druh dokumentu:	Working Paper
DOI:	10.1109/TMTT.2019.2912366
Popis:	A new simulation technique to obtain the synchronized steady-state solutions existing in coupled oscillator systems is presented. The technique departs from a semi-analytical formulation presented in previous works. It extends the model of the admittance function describing each individual oscillator to a piecewise linear one. This provides a global formulation of the coupled system, considering the whole characteristic of each voltage-controlled oscillator (VCO) in the array. In comparison with the previous local formulation, the new formulation significantly improves the accuracy in the prediction of the system synchronization ranges. The technique has been tested by comparison with computationally demanding circuit-level Harmonic Balance simulations in an array of Van der Pol-type oscillators and then applied to a coupled system of FET based oscillators at 5 GHz, with very good agreement with measurements. Comment: Index Terms: Coupled-oscillator system, harmonic balance, phased arrays
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2404.12780 Zobrazit plný text záznamu View this record from Arxiv