Improving VCO Phase Noise Performance Through Enhanced Characterization
Minimizing phase noise is a con-cern of VCO designers because of its direct impact on system performance. Reduction of phase noise begins with noise characteriza-tion and continues through modeling and sim-ulation of the design. Many factors affect the accuracy of a phase noise simulation and mea-surement, and all can be accurately addressed through the use of phase noise simulation along with prudent passive component selec-tion and resonator modeling. Optimum results can best be achieved when the considerations described in this article are followed. The Ansoft Designer EDA tools will be used as the reference in this discussion.
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