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The document summarizes a research paper that proposes a low phase noise voltage controlled ring oscillator using subharmonic injection locking in a 90nm CMOS process. The ring oscillator achieves an operating frequency range of 2.4-5.4GHz at 1V supply voltage. Simulation results show a phase noise of -122.3dBc/Hz at 1MHz offset frequency when injected with a 445MHz pulse at 33.4ps pulse width. The ring oscillator consumes 2.47mW of power. Subharmonic injection locking is used to reduce phase noise by minim
- Author
- Manoj Bora
- Language
- EN