Phase noise characterization of subharmonic injection locked oscillators |
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| Authors: | Fotis Plessas Athanasios Tsitouras Grigorios Kalivas |
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| Affiliation: | 1. Department of Computer and Communication Engineering, University of Thessaly, 37 Glavani—28th October Str, Deligiorgi Building, 4th floor, Volos 38221, Greece;2. Department of Electrical and Computer Engineering, University of Patras, Patra 26500, Greece |
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| Abstract: | In this work we present a detailed study of the phase noise of subharmonic injection locked oscillators (s‐ILOs). A new simple and efficient model has been presented for accurately predicting the phase noise of a microwave s‐ILO. The validity of the analytical technique is verified with measurement results obtained from a 5‐GHz fully differential Colpitts‐based s‐ILO. The results showed that a phase noise improvement of 12 dB at 1 kHz offset frequency compared to the free‐running case can be achieved, whereas the power consumption is 21 mW. Copyright © 2010 John Wiley & Sons, Ltd. |
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| Keywords: | oscillator injection‐locked oscillator phase noise |
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