Design of a Novel Ring VCO with low Phase Noise and High frequency range

Authors

  • Taghizadeh M Department of Electrical Engineering, Fasa Branch, Islamic Azad University, Shiraz, Iran
  • Taghizadeh P Department of Electrical Engineering , Fasa Branch, Islamic Azad University, Shiraz, Iran
  • Taghizadeh S Department of Electrical Engineering , Fasa Branch, Islamic Azad University, Shiraz, Iran
  • Kamaly A Department of Electrical Engineering , Fasa Branch, Islamic Azad University, Shiraz, Iran
  • Emamghorashi SA Department of Electrical Engineering , Fasa Branch, Islamic Azad University, Shiraz, Iran

Keywords:

VCO, Ring, Phase noise, Frequency range

Abstract

In this paper a ring VCO with high frequency range and low phase noise in 0.18 um CMOS technology is presented. In the proposed VCO, two techniques including current control and forward bias of body is implemented to increase the range of frequency. It is shown that forward bias of the body of control transistor cause to increase the frequency range noticeably. Moreover, by adding an inductor in the body of control transistor, the phase noise is decreased as well. The phase noise in 1 MHz offset frequency is -90 dBc/Hz and the frequency range is 2-14 GHz.

References

M.-L. Sheu, Y.-S. Tiao, L.-J. Taso, "A 1-V 4-GHz wide tuning range voltage-controlled ring oscillator in 0.18µm CMOS," Microelectronics Journal, vol. 42, pp. 897-902, 2011.

J. Zhao and Y.-B. Kim, "A low-power digitally controlled oscillator for all digital phase-locked loops," VLSI Design, vol. 2010, p. 2, 2010.

W.-H. Lee, B.-J. Gu, Y. Nishida, H. Takao, K. Sawada, M. Ishida, "Oscillation-controlled CMOS ring oscillator for wireless sensor systems," Microelectronics Journal, vol. 41, pp. 815-819, 2010.

M. Frankiewicz and A. Kos, "Wide-frequency-range low-power variable-length ring oscillator in

UMC CMOS 0.18 µm," in Mixed Design of Integrated Circuits and Systems (MIXDES), 2013 Proceedings of the 20th International Conference, 2013, pp. 291-293.

T. Li, B. Ye, J. Jiang, "0.5 V 1.3 GHz voltage controlled ring oscillator," in ASIC, 2009. ASICON'09. IEEE 8th International Conference on, 2009, pp. 1181-1184.

U. Guler and G. Dundar, "Modeling CMOS Ring Oscillator Performance as a Randomness Source," IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 61, pp. 712- 724, 2014.

T. V. Cao, D.T. Wisland, T.S. Lande, F. Moradi, "A bulk-controlled ring-VCO with 1/f-noise reduction for frequency ∆Σ modulator," in Mixed Design of Integrated Circuits & Systems, 2009. MIXDES'09. MIXDES-16th International Conference, 2009, pp. 187-192.

A. Ramazani, S. Biabani, GH. Hadidi, "CMOS Ring Oscillator with Combined Delay Stages," AEU-International Journal of Electronics and Communications, 2014.

P. Nugroho, R.K. Pokharel, H. Kanaya, K. Yoshida, "A 5.9 GHz Low Power and Wide Tuning Range CMOS Current-controlled Ring Oscillator," International Journal of Electrical and Computer Engineering (IJECE), vol. 2, pp. 293-300, 2012.

J. Radic, A. Djugova, L. Nagy, M. Videnovic-Misic, "Body effect influence on 0.18 µ m CMOS ring oscillator performance for IR-UWB pulse generator applications," in Embedded Computing (MECO), 2012 Mediterranean Conference on, 2012, pp. 170-173.

J. Garg and S. Verma, "Design of low power Voltage Controlled Oscillator," in Emerging Technology Trends in Electronics, Communication and Networking (ET2ECN), 2012 1st International Conference on, 2012, pp. 1-4.

R. Ashish, J.N. Vashishtha, R K sarin, "A RF Low Power 0.18-µ m based CMOS Differential ring oscillator," Proceedings of the World Congress on Engineering, vol. 2, 2012.

S.-M. Kang and Y. Leblebici, CMOS digital integrated circuits: Tata McGraw-Hill Education, 2003.

A. Daghighi and A. Neshat-Niko, "VCO Design and Simulation Using TSMC 0.18 um Process to Meet IEEE802.11a Requirements," Majlesi Journal of Electrical Engineering, vol. 2, pp. 29-37, 2008.

S. Shieh Ali Saleh and N. Masoumi, "Wide-tuning-range, low-phase-noise quadrature ring oscillator exploiting a novel noise canceling technique," AEU - International Journal of Electronics and Communications, vol. 66, pp. 372-379, 2012.

Jian ZhangI;Guoch Huang,” SiGe V Band Wide Tuning-Range vco and Frequency Divider for Phase Locked Loop”, Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMIC), Sept. 2012,pp(1 – 3), E-ISBN :978-1-4673-2948-4

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Published

2025-11-11

How to Cite

[1]
M. Taghizadeh, P. Taghizadeh, S. Taghizadeh, A. Kamaly, and S. A. Emamghorashi, “Design of a Novel Ring VCO with low Phase Noise and High frequency range”, Int. J. Comp. Sci. Eng., vol. 4, no. 12, pp. 8–12, Nov. 2025.

Issue

Vol. 4 No. 12 (2016): IJCSE December Edition

Section

Research Article

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