| Autor: |
Puying Tang, Jingfu Bao, ZhiPeng Li, Fei Wang |
| Rok vydání: |
2010 |
| Předmět: |
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| Zdroj: |
2010 International Conference on Microwave and Millimeter Wave Technology. |
| DOI: |
10.1109/icmmt.2010.5525011 |
| Popis: |
A novel nonlinear model of LC oscillator is presented which is based on electrical parameters of circuit. In view of the operation condition of device in steady-state oscillation, we discuss the physical process that transforms device noise in transistors or resistors into phase noise by nonlinear spectrum conversion and linear spectrum shaping. A closed-form expression is derived for the output phase noise spectrum. This model is validated by simulation of a 2.9GHz Colpitts oscillator using ADS. Theoretical analysis and simulation shows that phase noise performance in LC oscillator can be improved by diminishing the feedback factor. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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