1/f Additive Phase Noise Analysis for One-Port Injection-Locked Oscillators

The 1/f additive phase noise of one-port injection-locked oscillators is experimentally characterized and analyzed using a simple analytic model based on the generalized Kurokawa theory. To verify prediction proposed, two negative-conductance transmission line pHEMT operating at 2.4828 GHz 2.485 were designed fabricated. A new configuration for integrating an measurement system with large signal network analyzer (LSNA) introduced to jointly acquire both RF waveforms oscillator. derivatives needed expression obtained LSNA measurements optimized accurately corner frequency. good agreement between predicted experimental results was free-running oscillators. In contrast oscillator, which can only characterize oscillator-upconverted 1/f3 noise, characterization oscillator shown provide means directly observe input-referred intrinsic source negative resistance.