Analysis on strongly coupled oscillator arrays using modified Y-parameters approach
Journal
Progress In Electromagnetics Research B
Journal Volume
59
Pages
71-87
Date Issued
2014-01
Author(s)
Abstract
Abstract—A modified Y-parameters approach is proposed to model the behavior of coupled oscillator arrays (COA’s). A coupling network with tunable coupling strength is proposed, which has a near-constant input conductance, to ensure the oscillation condition under different attenuation levels. The parameters of oscillators and the coupling network are derived on the TSMC 0.18µm technology, and their Y parameters are extracted around 10GHz for illustration. After being verified with full-circuit simulations and other behavior models, including the Adler’s equation and the conventional Y-parameters approach, this method is applied to estimate the maximum allowable number of oscillators that can be coupled together. The inter-element phase shift of a COA is controlled by tuning the free-running frequencies of oscillators at both ends. Injection signals with proper phases are proposed to synchronize multiple COA’s into a bigger COA. 1.
SDGs
Type
journal article