Low Phase-Noise Planar Oscillators Based on Low-Noise Active Resonators
| Autor: | Amir Mortazawi, Morteza Nick |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Radiation
Materials science Oscillator phase noise business.industry Local oscillator Variable-frequency oscillator Condensed Matter Physics Noise figure Injection locking Vackář oscillator Voltage-controlled oscillator Phase noise Electronic engineering Optoelectronics Electrical and Electronic Engineering business |
| Zdroj: | IEEE Transactions on Microwave Theory and Techniques. 58:1133-1139 |
| ISSN: | 1557-9670 0018-9480 |
| DOI: | 10.1109/tmtt.2010.2045572 |
| Popis: | A very low phase-noise planar X -band oscillator employing an active resonator has been demonstrated. The high frequency selectivity of the active filter, used as the resonator, is the key factor in phase-noise reduction. A design procedure to achieve the resonator's optimum performance for low phase-noise applications is presented. In particular, the effect of the excess noise introduced by the active filter is addressed and its impact on the oscillator's phase noise is minimized. The oscillator, operating at 8 GHz, shows a measured phase noise of -150 dBc/Hz at 1-MHz frequency offset with 10-dBm output power. To the best of our knowledge, this oscillator demonstrates the lowest phase noise among published X -band planar oscillators to date. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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