Title :
A simple, unified phase noise model for injection-locked oscillators
Author :
Kalia, Sachin ; Elbadry, Mohammad ; Sadhu, Bodhisatwa ; Patnaik, Satwik ; Qiu, Joe ; Harjani, Ramesh
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Minnesota, Minneapolis, MN, USA
Abstract :
This paper presents a simple, unified phase noise model for injection-locked oscillators (ILO). We show that an ILO is identical to a type-I first-order PLL in its noise behavior within the lock range. The model predicts the phase noise of injection-locked oscillators (ILO), injection-locked frequency dividers (ILFD), and injection-locked frequency multipliers (ILFM) as a function of the injection source phase noise and the oscillator phase noise. Measurement results from a discrete 57MHz Colpitts ILO, an integrated 6.5GHz ILFD, and an integrated 24GHz ILFM are presented to validate the theoretical predictions.
Keywords :
circuit noise; frequency dividers; frequency multipliers; injection locked oscillators; microwave oscillators; phase locked loops; phase noise; Colpitts ILO; frequency 24 GHz; frequency 57 MHz; frequency 6.5 GHz; injection source phase noise; injection-locked frequency divider; injection-locked frequency multiplier; injection-locked oscillator; lock range; noise behavior; oscillator phase noise; phase noise model; type-I first-order PLL; Bandwidth; Noise measurement; Phase locked loops; Phase measurement; Phase noise;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2011 IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-8293-1
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2011.5940707
