Design and analysis of two K-band CMOS VCOs for next generation wireless systems

In this paper, two wideband K-band LC-tank VCOs for next generation wireless communication applications are designed, fabricated, and verified in a 0.13-μm CMOS process. A thorough comparison study of 12% tuning-range SS-VCO and 9.49% DS-VCO is conducted based on the measurement results and calculations of figure-of-merits (FoM) and FoMT. The measured phase noise of SS-VCO at 22.29 GHz carrier frequency is -101.77 dBc/Hz at 1MHz frequency offset, compared to -100.51 dBc/Hz of its DS-VCO counterpart at 26.08 GHz oscillation frequency. Under 1-V power supply, the SS-VCO only consumes 7 mA, and its FOMT achieves -181.8 dBc/Hz, which outperforms the DS-VCO by more than 5 dB.

[1]  Ariel Bleicher.  The 5G phone future [News] , 2013 .

[2]  M S J Steyaert,et al.  A 60-GHz CMOS VCO Using Capacitance-Splitting and Gate–Drain Impedance-Balancing Techniques , 2011, IEEE Transactions on Microwave Theory and Techniques.

[3]  A.M. Niknejad,et al.  A 1.8-GHz LC VCO with 1.3-GHz tuning range and digital amplitude calibration , 2005, IEEE Journal of Solid-State Circuits.

[4]  A. Fard,et al.  More on the $1/{\rm f}^{2}$ Phase Noise Performance of CMOS Differential-Pair LC-Tank Oscillators , 2006, IEEE Journal of Solid-State Circuits.

[5]  To-Po Wang,et al.  A 21 GHz Complementary Transformer Coupled CMOS VCO , 2008, IEEE Microwave and Wireless Components Letters.

[6]  Theodore S. Rappaport,et al.  Millimeter Wave Mobile Communications for 5G Cellular: It Will Work! , 2013, IEEE Access.

[7]  M. Steyaert,et al.  Design and Analysis of a 90 nm mm-Wave Oscillator Using Inductive-Division LC Tank , 2009, IEEE Journal of Solid-State Circuits.

[8]  Pietro Andreani,et al.  A switched-transformer, 76% tuning-range VCO in 90nm CMOS , 2010, 2010 Asia-Pacific Microwave Conference.