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Harmonic-balance analysis and synthesis of coupled-oscillator arrays

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4 Author(s)
A. Collado ; Commun. Eng. Dept., Univ. of Cantabria, Santander, Spain ; F. Ramirez ; A. Suarez ; J. P. Pascual

A new harmonic-balance technique for the analysis and synthesis of coupled-oscillator systems with adjustable phase progression is presented here. It allows an accurate determination of the phase-shift versus the tuning elements, since detailed models are used for the individual oscillator circuits. It is also possible to impose the synchronization frequency at which the in-phase oscillation takes place and calculate the values of the tuning elements for a pre-fixed phase distribution. The phase noise of the system is analyzed through the carrier modulation approach. The phase-change rapidity versus a control voltage is analyzed through the envelope-transient method. A four-element oscillator array at 5 GHz has been designed through this method and experimentally characterized obtaining very good agreement with the simulation results.

Published in:

IEEE Microwave and Wireless Components Letters  (Volume:14 ,  Issue: 5 )