Optimizing the design of an injection-locked frequency divider by means of nonlinear analysis
Abstract
Injection-locked frequency dividers (ILFDs) are versatile analog circuit blocks used, for example, within phase-locked loops (PLLs). With respect to their digital counterparts, they have the advantages of a low power consumption and division ratios greater than two. The price for these advantages is believed to be a limited locking range. Here we show that this is not the case; indeed, by combining nonlinear systems theory (bifurcation analysis) with optimization techniques, we have significantly increased the locking range of a classical (LC oscillator-based) injection-locked frequency divider, predicting a locking range that is about twenty times greater than what has been reported in the literature to date. The wider locking range predicted by the theory has been confirmed by SPICE simulations. © 2007 IEEE.
Publication Title
European Conference on Circuit Theory and Design 2007, ECCTD 2007
Recommended Citation
Ghahramani, M., Daneshgar, S., Kennedy, M., & Feo, O. (2007). Optimizing the design of an injection-locked frequency divider by means of nonlinear analysis. European Conference on Circuit Theory and Design 2007, ECCTD 2007, 571-574. https://doi.org/10.1109/ECCTD.2007.4529660
