@article{10902/18068,
year = {2019},
month = {6},
url = {http://hdl.handle.net/10902/18068},
abstract = {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 a very good agreement with measurements.},
organization = {This work was supported by the Spanish Ministry of Economy and Competitiveness and the European Regional Development Fund (ERDF/FEDER) under Project TEC2014-60283-C3-(1/2)-R and Project TEC2017-88242-C3-(1/2)-R},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
publisher = {IEEE Transactions on Microwave Theory and Techniques, 2019, 67(6), 2259-2269},
title = {Piecewise semi-analytical formulation for the analysis of coupled-oscillator systems},
author = {Umpiérrez Rodríguez, Pedro and Araña Pulido, Víctor and Sancho Lucio, Sergio Miguel},
}