Title :
Colpitts oscillator phase noise analysis based on analytical multi-harmonics model
Author :
Zhipeng Li ; Hongyun Huang ; Jingfu Bao
Author_Institution :
Sch. of Electr. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
This paper presents an analytical model for Colpitts oscillator phase noise computation by multi-harmonics Kurokawa method. The circuits parameters adopted in this model are derived by super-position principle presented in poly-harmonics distortion (PHD) modeling approach. In addition two types of noise source: additive noise and frequency converted noise are discussed in detail. Thus the more accurate and rigorous expression for amplitude and phase modulation noise are obtained. This method is verified in a feedback Colpitts oscillator, and the quantitative analytic results match well with the simulation results derived by commercial Harmonic-balance simulator.
Keywords :
amplitude modulation; microwave oscillators; oscillators; phase modulation; phase noise; Colpitts oscillator phase noise analysis; additive noise; amplitude modulation noise; analytical multiharmonics model; frequency converted noise; multiharmonics Kurokawa method; noise source; phase modulation noise; polyharmonics distortion modeling; superposition principle; Artificial intelligence; Capacitance; Computational modeling; Educational institutions; Integrated circuit modeling; Logic gates; Noise; Colpitts oscillator; Kurokawa model; phase noise; superposition principle;
Conference_Titel :
Microwave and Millimeter Wave Circuits and System Technology (MMWCST), 2013 International Workshop on
Conference_Location :
Chengdu
DOI :
10.1109/MMWCST.2013.6814655
