A Wide Tuning Range and Low Phase Noise VCO using New Capacitor Bank Structure

  • Mostafa Katebi University of Zanjan
  • Abbas Nasri University of Zanjan
  • Siroos Toofan University of Zanjan
Keywords: Voltage Controlled Oscillator, VCO, Capacitor bank, Low noise, wide tuning.

Abstract

This paper presents a wide tuning range, and low noise voltage controlled oscillator (VCO) based on cross-coupled and colpitts structures. The advantages of this work provide a low-phase noise and robust start-up condition, leading to minimized the dc power. In addition, a new structure of capacitor bank is used in this structure to achieve a wide range of frequency. The proposed circuit is simulated in 0.18 µm CMOS process. The designed VCO covers the frequency range of 21.95 GHz to 24 GHz with a tuning range of 8.9%. Simulation results show that the phase noise is -120.5 dBc/Hz at 1MHz offset frequency for 23GHz carrier frequency.  Also, power consume of the VCO is 6.34 mW under 1.8 supply voltage, and the figure-of-merit is -191.68 dBc/Hz.

References

[1] M. S. Sadr, H. Ghafoorirad, M. Yavari, and S. Sheikhaei, “A Novel Low Phase Noise and Low
Power DCO in 90 nm Technology for ADPLL Application,” 24th Iran. Conf. Elec. Eng. Tehran, pp.
810–815, May. 2016.
[2] M. C. Chen, J. H. Cheng, J. H. Tsai, M. H. Wu, and T. W. Huang, “A Low-Power K-band Frequency
Synthesizer Using Push-Push Transformer Feedback VCO in 0.18-µm CMOS Technology,” Proc. 44th European Micr. Conf. Rome, pp. 580–583,Oct. 2014.
[3] Y. Wu and V. Aparin, “A Temperature Stabilized CMOS VCO for Zero_IF Cellular CDMA,” Symp. on VLSI Circuit Digest of Technical Papers, Kyoto, pp. 580–583, Oct. 2014.
[4] S. R. Karri, B. S. Heng, C. H. Shen, and G. K. Dheng, “A Temperature Compensated VCO Design for
Multiband WCDMA Transceiver Application,” IEEE International Symp. on Radio Frequency Integration Technology, Singapore, pp. 191-194, Dec. 2009.
[5] Y. You, D. Huang, J. Chen, and S. Chakraborty, “A 12GHz 67% Tuning Range 0.37pS RJrms PLL with
LC-VCO Temperature Compensation Scheme in 0.13µm CMOS,” IEEE Radio Frequency Integrated
Circuits Symposium, Florida, pp. 101-104, Jun. 2014.
[6] Ravinuthula, ” A Low Power High Performance PLL with Temperature Compensated VCO in 65nm
CMOS,” IEEE Radio Frequency Int. Circuits Symp., Philadelphia , pp. 31 -34, Jun. 2016.
[7] T. N. Nguyen and J. W. Lee, ”A K -band CMOS Differential Vackar VCO With the Gate Inductive
Feedback, ” IEEE Trans. Circuits Syst. II, Vol. 59, No. 5, pp. 257 -261, May. 2012.
[8] S. Wang, W. J. Lin, “A K -band Gm -boosting differential Colpitts VCO in 0.18 -μm CMOS,
” Asia - Pacific Microwave Conf. Proce, Seoul, pp. 1042 -1045, Aug. 2013.
[9] T. P. Wang, “A CMOS Colpitts VCO Using Negative -Conductance Boosted Technology,” IEEE Trans. Circuits Syst. I, vol. 58, no. 11, pp. 2623 -2635, Nov. 2011
[10 ] K. W. Cheng and M. Je, “A Current -Switching and gm-Enhanced Colpitts Quadrature VCO, ” IEEE
Micr. and Wireless Comp. Letter, Vol. 23, No. 3, Mar. 2013.
[11] B. Razavi, “RF microelectronics ” 2nd ed ., USA, Prentice Hall, 2011.
[12] Y. Ting, Z. Y. Ming, L. H. Liang, Z. Y. Men, and W. Yue, “A K -Band Low Phase Noise and Wide Tunnig
Range LC VCO, ” IEEE 12th International Conference on Solid-State and Int. Circuit Technology, Guilin, Oct.
2014.
[13] T. Huanhuan, L. Zhiqiang, C. Pufeng, W. Rufei, and Z. Haiying, , “A low -power and low
-phase -noise LC digitally controlled oscillator featuring a novel capacitor bank, ” J. Semiconductors, Vol. 31, No. 12,
pp. 125003.1-125003.4, Dec. 2010.
[14] R. Aparicio, A. Hajimiri, “A noise -shifting Colpitts Differential VCO, ” IEEE J. Solid -State Circuits , vol.37, no. 12, pp. 1728-1736, Dec. 2002.
[15] P. E. Allen and D. T. Holberg,“CMOS Analog Circuit Design,” 3rd ed., USA, Oxford University Press, 2011.
[16] S. Spiridon, F. Spiridon, C. Dan, M. Bodea, “Phase Noise and Area-Power Consumption Trade-off in
the Frequency Synthesizers for Software Defined Radio Transceivers, ” upb. sci. bull. series c,
Bucharest, Vol. 72, Iss. 4, pp. 137-148, 2010.
[17] S. Spiridon, F. Spiridon, C. Dan, M. Bodea,“A NovelVariable Inductor Using a Bridge Circuit and Its
Application to a 5–20 GHz Tunable LC-VCO, ” IEEE J. Solid-State Circuits , vol. 46, no. 4, pp. 883-892 , Apr. 2011.
[18] A. Hajimiri and T. H. Lee, “The Design of Low Noise Oscillators, ” USA, Kluwer Academic, 1999
[19] C. C. Li, T. P. Wang, C. C. Kuo, M. C. Chuang, and H. ang, “A 21 -GHz complementary transformer - coupled CMOS VCO, ” IEEE Microw. Wireless Compon. Lett. , vol.16, pp. 278 -280, Apr. 2008.
[20] J. Yang, C. Y. Kim, D. W. Kim, and S. Hong, “Design of a 24 -GHz CMOS VCO with an asymmetric
-width transformer,” IEEE Trans Circuits Syst. II, Exp. Briefs, vol. 57, no. 3, pp. 173 –177, Mar. 2010.
Published
2018-02-06
How to Cite
Katebi, M., Nasri, A., & Toofan, S. (2018). A Wide Tuning Range and Low Phase Noise VCO using New Capacitor Bank Structure. Majlesi Journal of Electrical Engineering, 12(4), 95-103. Retrieved from http://mjee.iaumajlesi.ac.ir/index/index.php/ee/article/view/2471
Section
Articles