Name
Abstract | ||
|---|---|---|
This brief presents a K-band differential Vackar voltage-controlled oscillator (VCO) with gate inductive feedback which enhances negative impedance and thus simplifies the startup condition. Simple analysis and simulations examine the transistor loading effect and amplitude stability. Results indicate that the Vackar VCO has improved amplitude stability compared to the Colpitts VCO. The improved amplitude stability is favorable for suppressing amplitude-to-phase noise conversion. The Vackar VCO was implemented in a 0.13- RF CMOS process. The oscillation frequency ranged from 19 to 19.95 GHz. The measured phase noise at 1-MHz offset was 103 dBc/Hz at 19.5 GHz with a figure of merit of 182 dB. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1109/TCSII.2012.2188472 | IEEE Trans. on Circuits and Systems |
Keywords | Field | DocType |
field effect mmic,cmos integrated circuits,inductive feedback,voltage-controlled oscillator,voltage-controlled oscillators,vackar,negative impedance,amplitude-to-phase noise conversion,low phase noise,transistor loading effect,voltage-controlled oscillators (vcos),integrated circuit noise,transformer,frequency 19 ghz to 19.95 ghz,phase noise,gate inductive feedback,mmic oscillators,size 0.13 mum,rf cmos process,oscillation frequency,k-band cmos differential vackar vco,colpitt vco,amplitude stability,stability analysis,logic gate,voltage controlled oscillator,figure of merit,tuning,logic gates,oscillations | Colpitts oscillator,Logic gate,K band,Control theory,Phase noise,Electronic engineering,Figure of merit,CMOS,Voltage-controlled oscillator,Transistor,Electrical engineering,Mathematics | Journal |
Volume | Issue | ISSN |
59 | 5 | 1549-7747 |
Citations | PageRank | References |
0 | 0.34 | 3 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Tai Nghia Nguyen | 1 | 4 | 0.89 |
| Jong-Wook Lee | 2 | 66 | 11.45 |