A bias-varied low-power K-band VCO in 90 nm CMOS technology

Szu Ling Liu*, Xin Cheng Tian, Yue Hao, Albert Chin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


This letter presents a novel bias-varied low-power K-band voltage controlled oscillator (VCO) in a standard 90 nm CMOS technology. This circuit exhibits low power consumption of 3mW and a 12.2% tuning range with low phase noise characteristic. These performances are realized by combination of the transformer-feedback and the switchable active circuit block, which can control the dc power at different frequencies and improve the phase noise.

Original languageEnglish
Article number6202375
Pages (from-to)321-323
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Issue number6
StatePublished - 23 May 2012


  • Bias-varied
  • k-band
  • phase noise
  • switchable active circuit
  • voltage controlled oscillator (VCO)

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