Title :
Phase noise reduction in RF oscillators utilizing self-injection locked and phase locked loop
Author :
Li Zhang ; Poddar, Ajay K. ; Rohde, Ulrich L. ; Daryoush, Afshin S.
Author_Institution :
Dept. of ECE, Drexel Univ., Philadelphia, PA, USA
Abstract :
Self-injection locked and phase locked loop (SILPLL) using long optical delay has been proposed for phase noise reduction in microwave oscillators. Experiments for both single loop and dual loop SILPLL are performed to demonstrate the phase noise reduction in an electrical VCO. Dual loop configuration provided a phase noise reduction of 71 dB at 300 Hz offset while achieving a lower spurious signal level as opposed to single loop configuration.
Keywords :
injection locked oscillators; microwave oscillators; phase locked loops; phase noise; voltage-controlled oscillators; RF oscillators; dual loop SILPLL; electrical VCO; long optical delay; microwave oscillators; phase noise reduction; self-injection locked and phase locked loop; single loop SILPLL; spurious signal level; Delay lines; Delays; Optical fibers; Phase locked loops; Phase noise; Voltage-controlled oscillators; VCO; fiber optic link; forced oscillation; phase noise; self-injection locked and phase locked loop;
Conference_Titel :
Silicon Monolithic Integrated Circuits in RF Systems (SiRF), 2015 IEEE 15th Topical Meeting on
Conference_Location :
San Diego, CA
DOI :
10.1109/SIRF.2015.7119883
