Second harmonic power combining technique for low phase noise cross-coupled push-push VCO

Hwann Kaeo Chiou, Yu Lin Zou

Research output: Contribution to journalArticlepeer-review

Abstract

An even-mode power combining technique was developed for a high-performance K-band push-push voltage control oscillator (VCO) in standard 0.18 μm CMOS technology. The VCO was designed based on linear time variant (LTV) phase noise model. The obtained frequency tuning range and maximum output power were 1.95 GHz and -9.68 dBm with core power consumption of 3.6 mW at maximum oscillation frequency of 26.7 GHz. The push-push VCO demonstrated a phase noise of -117.5 dBc/Hz at 1 MHz offset, which resulted in an excellent FoM of -199.82 dBc/Hz.

Original languageEnglish
Pages (from-to)3242-3246
Number of pages5
JournalMicrowave and Optical Technology Letters
Volume50
Issue number12
DOIs
StatePublished - Dec 2008

Keywords

  • Cross-coupled
  • Push-push VCO
  • Second harmonic power combining

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