JSTS:Journal of Semiconductor Technology and Science

The Institute of Electronics and Information Engineers (대한전자공학회)
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A 120 GHz Voltage Controlled Oscillator Integrated with 1/128 Frequency Divider Chain in 65 nm CMOS Technology

  • Kim, Namhyung (School of Electrical Engineering, Korea University) ;
  • Yun, Jongwon (School of Electrical Engineering, Korea University) ;
  • Rieh, Jae-Sung (School of Electrical Engineering, Korea University)
  • Received : 2013.10.26
  • Accepted : 2013.11.27
  • Published : 2014.02.28
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Abstract

A 120 GHz voltage controlled oscillator (VCO) with a divider chain including an injection locked frequency divider (ILFD) and six static frequency dividers is demonstrated using 65-nm CMOS technology. The VCO is designed based on the LC cross-coupled push-push structure and operates around 120 GHz. The 60 GHz ILFD at the first stage of the frequency divider chain is based on a similar topology as the core of the VCO to ensure the frequency alignment between the two circuit blocks. The static divider chain is composed of D-flip flops, providing a 64 division ratio. The entire circuit consumes a DC power of 68.5 mW with the chip size of $1385{\times}835{\mu}m^2$.

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References

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