JSTS:Journal of Semiconductor Technology and Science

  • 제6권4호
  • /
  • Pages.281-285
  • /
  • 2006
  • /
  • 1598-1657(pISSN)
  • /
  • 2233-4866(eISSN)
대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

A 10-GHz CMOS LC VCO with Wide Tuning Range Using Capacitive Degeneration

  • Yu, Tae-Geun (The Department of Electronics Engineering, Chonbuk National University) ;
  • Cho, Seong-Ik (The Department of Electronics Engineering, Chonbuk National University) ;
  • Jeong, Hang-Geun (The Department of Electronics Engineering, Chonbuk National University)
  • 발행 : 2006.12.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In order to widen the tuning range, capacitive degeneration is applied to fully CMOS LC VCOs. Small signal analysis shows that the fixed MOSFET capacitance seen by the LC tank is smaller than that of the traditional LC VCO, resulting in significant extension in the tuning range. This improvement in the tuning range has been verified through measurement of a 10-GHz LC VCO fabricated by $0.18{\mu}m$ CMOS process. The measured tuning range is from 9.8-GHz to 12-GHz, which is better than those of the reported CMOS LC VCOs in 10-GHz band. The measured phase noise is - 103dBc/Hz at 1MHz offset.

키워드

참고문헌

  1. Hugo Veenstra, et al, 'A 19-23GHz integrated LC-VCO in a production 70GHz $f_T$ SiGe technology,' Proc. ESSCIRC, pp. 349-352, Sept. 2003 https://doi.org/10.1109/ESSCIRC.2003.1257144
  2. Hugo Veenstra, et al, 'A 35.2-37.6GHz LC VCO in a 70/100GHz $f_T/f_{max}$ SiGe Technology,' Proc. ISSCC, pp. 394-395, Feb. 2004 https://doi.org/10.1109/ISSCC.2004.1332760
  3. Byunghoo Jung, et al, 'High-frequency LC VCO design using capacitive degeneration,' IEEE J. Solid-State Circuits, vol. 39, pp. 2359-2370, Dec. 2004 https://doi.org/10.1109/JSSC.2004.835643
  4. R. Murji and M. J. Deen, 'A low-power, 10GHz back-Gate tuned voltage controlled oscillator with automatic amplitude and temperature compensation,' Proc. ISCAS, vol. 4, pp. 23-26, May 2004
  5. A. H. Mostafa, et al, 'A 12.5GHz back-gate tuned CMOS voltage controlled oscillator,' Proc. ICECS, vol. 1, pp. 243-247, Dec. 2000 https://doi.org/10.1109/ICECS.2000.911529
  6. H. Wang, 'A 9.8GHz back-gate tuned VCO in $0.35{\mu}m$ CMOS,' Proc. IEEE ISSCC, pp. 406-407, Feb. 1999 https://doi.org/10.1109/ISSCC.1999.759324
  7. A. H. Mostafa, et al, 'A sub 1V 4GHz CMOS VCO and a 12.5GHz oscillator for low-voltage and high-frequency applications,' IEEE Transactions on Circuits and Systems II, vol. 48, pp. 919-926, Oct. 2001 https://doi.org/10.1109/82.974779