Frequency-Domain Modeling and Analysis of Injection-Locked Oscillators

Abstract

This article presents a complete frequency-domain model for injection-locked oscillators (ILOs), which is applicable to all ILO topologies. Based on the essence of the phase accumu- lation within ILOs, an equivalent linear frequency-domain feed- back loop is constructed. By introducing an injection factor that depicts the proportion of the phase shift perturbation with respect to the injection phase disturbance, the phase transfer function (PTF)/noise transfer function (NTF) and tracking bandwid