A 60 GHz Frequency Generator Based on a 20 GHz Oscillator and an Implicit Multiplier

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This paper proposes a mm-wave frequency generation technique that improves its phase noise (PN) performance and power efficiency. The main idea is that a fundamental 20 GHz signal and its sufficiently strong third harmonic at 60 GHz are generated simultaneously in a single oscillator. The desired 60 GHz local oscillator (LO) signal is delivered to the output, whereas the 20 GHz signal can be fed back for phase detection in a phase-locked loop. Third-harmonic boosting and extraction techniques are proposed and applied to the frequency generator. A prototype of the proposed frequency generator is implemented in digital 40 nm CMOS. It exhibits a PN of -100 dBc/Hz at 1 MHz offset from 57.8 GHz and provides 25% frequency tuning range (TR). The achieved figure-of-merit (FoM) is between 179 and 182 dBc/Hz.
Original languageEnglish
Pages (from-to)1261-1273
Number of pages13
JournalIEEE Journal of Solid State Circuits
Issue number5
Publication statusPublished - 15 Mar 2016


  • CMOS digital integrated circuits
  • field effect MIMIC
  • frequency multipliers
  • millimetre wave frequency convertors
  • millimetre wave oscillators
  • phase noise
  • FoM
  • PN performance
  • digital CMOS process
  • extraction techniques
  • figure-of-merit
  • frequency 20 GHz
  • frequency 57.8 GHz
  • frequency 60 GHz
  • frequency generator
  • frequency tuning range
  • implicit multiplier
  • local oscillator signal
  • mm-wave frequency generation technique
  • phase detection
  • phase noise performance
  • phase-locked loop
  • power efficiency
  • size 40 nm
  • third-harmonic boosting techniques
  • Boosting
  • Frequency conversion
  • Harmonic analysis
  • Oscillators
  • Phase locked loops
  • Power demand
  • Resonant frequency
  • 60 GHz
  • PLL
  • frequency divider
  • harmonic boosting
  • harmonic extraction
  • mm-wave
  • oscillator
  • phase noise (PN)
  • transformer


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